| UN/LOCODE | Port Name | Region | Region Name | Port Type | State | Latitude & longitude | Map |
|---|---|---|---|---|---|---|---|
| USAPG | Aberdeen | MD | Maryland | Road Terminal,Airport | AI | ||
| USNGD | Abingdon | MD | Maryland | Road Terminal | RL | 3927N 07616W | Map |
| USAJT | Accident | MD | Maryland | Road Terminal | RL | 3938N 07919W | Map |
| USJOK | Accokeek | MD | Maryland | Road Terminal | RL | 3840N 07701W | Map |
| USAN6 | Adamstown | MD | Maryland | Multimodal Functions (ICDs, etc.) | RL | 3918N 07728W | Map |
| USA9D | Adelphi | MD | Maryland | Road Terminal | RL | 3859N 07658W | Map |
| USAS3 | Andrews AFB | MD | Maryland | Multimodal Functions (ICDs, etc.) | RQ | 3847N 07652W | Map |
| USANP | Annapolis | MD | Maryland | Port,Road Terminal,Airport | AI | ||
| USQAJ | Annapolis Junction | MD | Maryland | Road Terminal | RL | 3912N 07650W | Map |
| USJBM | Arbutus | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RQ | 3915N 07642W | Map |
| USAAP | Arlington/Baltimore | MD | Maryland | Rail Terminal,Road Terminal | RL | 3920N 07641W | Map |
| USAZR | Arnold | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3902N 07630W | Map |
| USAVL | Arundel Village | MD | Maryland | Road Terminal | RL | 3912N 07636W | Map |
| USXST | Ashton | MD | Maryland | Road Terminal | RL | 3908N 07700W | Map |
| USAVW | Avenel/Washington, D.C. | MD | Maryland | Road Terminal | RL | 3900N 07658W | Map |
| USBAL | Baltimore | MD | Maryland | Port,Rail Terminal,Road Terminal | RL | 3917N 07637W | Map |
| USBWI | Baltimore-Washington Int Apt | MD | Maryland | Airport | AI | ||
| USBFK | Barclay | MD | Maryland | Rail Terminal,Road Terminal | RL | 3908N 07552W | Map |
| USB4V | Beallsville | MD | Maryland | Road Terminal | AA | 3910N 07724W | Map |
| USBLX | Bel Air | MD | Maryland | Road Terminal | RQ | ||
| USBEJ | Belcamp | MD | Maryland | Rail Terminal,Road Terminal | RL | 3928N 07614W | Map |
| USBES | Beltsville | MD | Maryland | Road Terminal | RQ | ||
| USBNJ | Bengies | MD | Maryland | Road Terminal | RL | 3920N 07625W | Map |
| USBCI | Berlin | MD | Maryland | Port,Road Terminal | RL | 3819N 07513W | Map |
| USBZH | Bethesda | MD | Maryland | Road Terminal | RQ | ||
| USB3V | Bishopville | MD | Maryland | Road Terminal | RL | 3826N 07511W | Map |
| USBDZ | Bladensburg | MD | Maryland | Road Terminal | RQ | ||
| USB2M | Bloomington | MD | Maryland | Road Terminal | RL | 3928N 07904W | Map |
| USB3O | Boonsboro | MD | Maryland | Road Terminal | RL | 3930N 07739W | Map |
| USBQA | Bowie | MD | Maryland | Rail Terminal,Road Terminal | RL | 3858N 07645W | Map |
| USB9D | Boyds | MD | Maryland | Road Terminal | RL | 3911N 07718W | Map |
| USOHG | Braddock Heights | MD | Maryland | Road Terminal | RL | 3925N 07730W | Map |
| USXDL | Brandywine | MD | Maryland | Road Terminal | RQ | ||
| USBXG | Brentwood | MD | Maryland | Road Terminal | RQ | ||
| USBJT | Bridgetown | MD | Maryland | Road Terminal | RQ | ||
| USO2V | Brookeville | MD | Maryland | Road Terminal | AA | 3910N 07703W | Map |
| USBE4 | Brooklandville | MD | Maryland | Road Terminal | RL | 3925N 07640W | Map |
| USBN5 | Brooklyn | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RQ | 3914N 07637W | Map |
| USBJQ | Brooklyn Park | MD | Maryland | Road Terminal | RQ | ||
| USBU6 | Brunswick | MD | Maryland | Road Terminal | RL | 3918N 07737W | Map |
| USWI7 | Brunswick | MD | Maryland | Road Terminal | RL | 3918N 07737W | Map |
| USBUV | Burtonsville | MD | Maryland | Road Terminal | RQ | ||
| USBT9 | Butler | MD | Maryland | Road Terminal | RL | 3932N 07643W | Map |
| USCJ4 | Cabin John | MD | Maryland | Road Terminal | RL | 3858N 07709W | Map |
| USCA2 | California | MD | Maryland | Road Terminal | RL | 3818N 07630W | Map |
| USC42 | Calverton | MD | Maryland | Road Terminal | RL | 3903N 07656W | Map |
| USCGE | Cambridge | MD | Maryland | Port,Road Terminal,Airport | RN | ||
| USADW | Camp Springs | MD | Maryland | Airport | AI | ||
| USACD | Capitol Heights | MD | Maryland | Road Terminal | RQ | ||
| USC4U | Cascade | MD | Maryland | Road Terminal | AA | 3943N 07729W | Map |
| USCVM | Catonsville | MD | Maryland | Road Terminal | RQ | ||
| USC5T | Cavetown | MD | Maryland | Road Terminal | RL | 3938N 07735W | Map |
| USCYD | Cecilton | MD | Maryland | Road Terminal | RQ | ||
| USC5E | Centreville | MD | Maryland | Road Terminal | RL | 3902N 07604W | Map |
| USJTH | Charlotte Hall | MD | Maryland | Road Terminal | RL | 3828N 07646W | Map |
| USHJM | Cheltenham | MD | Maryland | Road Terminal | RL | 3844N 07649W | Map |
| USCC8 | Chesapeake City | MD | Maryland | Port,Road Terminal | RL | 3931N 07548W | Map |
| US2CS | Chester | MD | Maryland | Road Terminal | RL | 3858N 07617W | Map |
| USCWN | Chestertown | MD | Maryland | Road Terminal | RQ | ||
| USCFY | Cheverly | MD | Maryland | Road Terminal | RL | 3855N 07654W | Map |
| USQCC | Chevy Chase | MD | Maryland | Port,Road Terminal | RL | 3858N 07705W | Map |
| USHQC | Churchville | MD | Maryland | Road Terminal | RL | 3933N 07614W | Map |
| USIBP | Claiborne | MD | Maryland | Road Terminal | RL | 3850N 07616W | Map |
| USYKG | Clarksbourg | MD | Maryland | Road Terminal | RL | 3914N 07717W | Map |
| USC9L | Clarksburg | MD | Maryland | Road Terminal | RL | 3914N 07716W | Map |
| USKVI | Clarksville | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3912N 07656W | Map |
| US2CP | Clear Spring | MD | Maryland | Road Terminal | RL | 3939N 07755W | Map |
| USCNB | Clinton | MD | Maryland | Road Terminal | RQ | ||
| USCCQ | Cockeysville | MD | Maryland | Road Terminal | RQ | ||
| USCGS | College Park | MD | Maryland | Airport | AI | ||
| USCOR | Colora | MD | Maryland | Road Terminal | RQ | ||
| USACW | Columbia | MD | Maryland | Road Terminal | RQ | ||
| USC3W | Conowingo | MD | Maryland | Road Terminal | AA | 3940N 07609W | Map |
| USCK3 | Cooksville | MD | Maryland | Road Terminal | RL | 3919N 07701W | Map |
| USCD7 | Cordova | MD | Maryland | Road Terminal | RL | 3852N 07559W | Map |
| USC4C | Cottage City | MD | Maryland | Road Terminal | RL | 3856N 07656W | Map |
| USCP6 | Cove Point | MD | Maryland | Port | RL | 3822N 07623W | Map |
| USCRI | Crisfield | MD | Maryland | Road Terminal | RN | ||
| USZCN | Crofton | MD | Maryland | Road Terminal | RL | 3900N 07641W | Map |
| USCBE | Cumberland | MD | Maryland | Airport | AI | ||
| USUSB | Curtis Bay, Baltimore | MD | Maryland | Port,Rail Terminal,Road Terminal | RL | 3913N 07635W | Map |
| USZWF | Damascus | MD | Maryland | Road Terminal | RL | 3916N 07712W | Map |
| USDIT | Darlington | MD | Maryland | Road Terminal | RL | 3938N 07612W | Map |
| USDV2 | Davidsonville | MD | Maryland | Road Terminal | RL | 3855N 07638W | Map |
| USERP | Deer Park | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RQ | 3925N 07919W | Map |
| USDMM | Delmar | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3827N 07535W | Map |
| USZDN | Denton | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3853N 07549W | Map |
| USDW2 | Derwood | MD | Maryland | Rail Terminal,Road Terminal | RL | 3907N 07710W | Map |
| USVOU | Detour | MD | Maryland | Road Terminal | RQ | 3936N 07716W | Map |
| USJHO | District Heights | MD | Maryland | Port,Multimodal Functions (ICDs, etc.) | RL | 3851N 07653W | Map |
| USDRS | Dorsey | MD | Maryland | Road Terminal | RQ | ||
| USD2D | Drayden | MD | Maryland | Road Terminal | RL | 3810N 07628W | Map |
| USDDQ | Dundalk | MD | Maryland | Road Terminal | RQ | ||
| USK44 | Dunkirk | MD | Maryland | Road Terminal | RL | 3843N 07639W | Map |
| USM9D | Earleville | MD | Maryland | Road Terminal | AA | 3924N 07555W | Map |
| USESN | Easton | MD | Maryland | Road Terminal,Airport | AI | ||
| USGME | Edgemere | MD | Maryland | Port | RL | 3914N 07627W | Map |
| USEW7 | Edgewater | MD | Maryland | Multimodal Functions (ICDs, etc.) | RQ | 3919N 07626W | Map |
| USEDG | Edgewood | MD | Maryland | Airport | AI | ||
| USEOT | Edmonston | MD | Maryland | Road Terminal | RQ | ||
| USEMC | Eldersburg | MD | Maryland | Road Terminal | RQ | ||
| USEKD | Elkridge | MD | Maryland | Road Terminal | RL | ||
| USELT | Elkton | MD | Maryland | Road Terminal | RQ | ||
| USECC | Ellicott City | MD | Maryland | Road Terminal | RL | 3916N 07647W | Map |
| USESE | Essex | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3918N 07628W | Map |
| USFL2 | Fallston | MD | Maryland | Road Terminal | RL | 3931N 07625W | Map |
| USFAQ | Faulkner | MD | Maryland | Road Terminal | RQ | ||
| USFDL | Federalsburg | MD | Maryland | Road Terminal | RQ | ||
| USFNS | Finksburg | MD | Maryland | Road Terminal | RL | 3929N 07653W | Map |
| US5FS | Flintstone | MD | Maryland | Road Terminal | RL | 3942N 07834W | Map |
| USFES | Forest Hill | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3935N 07623W | Map |
| USFVL | Forestville | MD | Maryland | Road Terminal | RQ | ||
| USFK3 | Fork | MD | Maryland | Road Terminal | RL | 3928N 07626W | Map |
| USFGA | Fort George G Meade | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3907N 07644W | Map |
| USFME | Fort Meade | MD | Maryland | Road Terminal,Airport | AI | ||
| USFWY | Fort Washington | MD | Maryland | Road Terminal | RQ | ||
| USFDK | Frederick | MD | Maryland | Road Terminal,Airport | RL | 3924N 07724W | Map |
| USFV4 | Frederick Village | MD | Maryland | Road Terminal | RL | 3916N 07646W | Map |
| USZFP | Friendship | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3844N 07635W | Map |
| USFEV | Friendsville | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3939N 07924W | Map |
| USFZH | Frostburg | MD | Maryland | Rail Terminal,Road Terminal | RL | 3939N 07855W | Map |
| USZFM | Fruitland | MD | Maryland | Port,Rail Terminal,Road Terminal | RL | 3819N 07537W | Map |
| USM5D | Fulton | MD | Maryland | Road Terminal | RL | 3918N 07638W | Map |
| USGAI | Gaithersburg | MD | Maryland | Road Terminal,Airport | AI | 3908N 07713W | Map |
| USGZQ | Galena | MD | Maryland | Road Terminal | RL | 3920N 07552W | Map |
| USVGL | Galesville | MD | Maryland | Road Terminal | RQ | ||
| USG2M | Gambrills | MD | Maryland | Multimodal Functions (ICDs, etc.) | RQ | ||
| USGAX | Garrison | MD | Maryland | Road Terminal | RQ | ||
| USGTN | Germantown | MD | Maryland | Rail Terminal,Road Terminal | RL | 3909N 07716W | Map |
| USGCD | Glen Allen | MD | Maryland | Road Terminal | RQ | ||
| USENR | Glen Arm | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3927N 07629W | Map |
| USGBM | Glen Burnie | MD | Maryland | Road Terminal | RQ | ||
| US9GL | Glenarden | MD | Maryland | Road Terminal | RL | 3855N 07651W | Map |
| USGAW | Glendale | MD | Maryland | Road Terminal | RQ | ||
| USYNN | Glenndale | MD | Maryland | Port,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3858N 07648W | Map |
| USG9D | Glenwood | MD | Maryland | Road Terminal | RL | 3917N 07701W | Map |
| USGYN | Glyndon | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3928N 07648W | Map |
| USGV8 | Grantsville | MD | Maryland | Multimodal Functions (ICDs, etc.) | RL | 3941N 07909W | Map |
| USGRF | Grasonville | MD | Maryland | Road Terminal | RL | 3857N 07613W | Map |
| US237 | Great Mills | MD | Maryland | Road Terminal | RL | 3814N 07629W | Map |
| USGLT | Greenbelt | MD | Maryland | Road Terminal | RQ | ||
| USGT3 | Greenmount | MD | Maryland | Road Terminal | RL | 3937N 07651W | Map |
| USG8K | Gwynn Oak | MD | Maryland | Road Terminal | RL | 3919N 07641W | Map |
| USHGR | Hagerstown | MD | Maryland | Airport | AI | ||
| USHPH | Halethorpe | MD | Maryland | Road Terminal | RQ | ||
| USHPD | Hampstead | MD | Maryland | Road Terminal | RQ | ||
| USH2N | Hancock | MD | Maryland | Port,Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3942N 07811W | Map |
| USHVM | Hanover | MD | Maryland | Road Terminal | RQ | ||
| USHMA | Harmans | MD | Maryland | Road Terminal | RQ | ||
| USZHW | Harwood | MD | Maryland | Port,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3851N 07637W | Map |
| USHDC | Havre de Grace | MD | Maryland | Road Terminal | RL | 3933N 07606W | Map |
| USKHN | Hebron | MD | Maryland | Road Terminal | RL | 3825N 07541W | Map |
| USH2D | Henderson | MD | Maryland | Road Terminal | RL | 3904N 07545W | Map |
| USHY9 | Henryton | MD | Maryland | Road Terminal | RL | 3921N 07654W | Map |
| USHGY | Highland | MD | Maryland | Road Terminal | RL | 3911N 07657W | Map |
| USQGW | Highlandtown | MD | Maryland | Road Terminal | RL | 3917N 07634W | Map |
| USIHW | Hollywood | MD | Maryland | Road Terminal | RL | 3821N 07634W | Map |
| USHVD | Hunt Valley | MD | Maryland | Road Terminal | RQ | ||
| USHW8 | Huntingtown | MD | Maryland | Road Terminal | RQ | 3836N 07636W | Map |
| USHUC | Hurlock | MD | Maryland | Road Terminal | RQ | ||
| USXGZ | Hyattsville | MD | Maryland | Road Terminal | RQ | ||
| USIJA | Ijamsville | MD | Maryland | Rail Terminal,Road Terminal | RL | 3921N 07719W | Map |
| USZD9 | Indian Head | MD | Maryland | Multimodal Functions (ICDs, etc.) | RL | 3836N 07709W | Map |
| USJRV | Jarrettsville | MD | Maryland | Road Terminal | RL | 3936N 07629W | Map |
| USXHB | Jessup | MD | Maryland | Road Terminal | RQ | ||
| USJOP | Joppa | MD | Maryland | Road Terminal | RQ | ||
| USKV4 | Kennedyville | MD | Maryland | Rail Terminal,Road Terminal | RL | 3918N 07600W | Map |
| US2KT | Kensington | MD | Maryland | Road Terminal | RL | 3904N 07634W | Map |
| USNGG | Kettering | MD | Maryland | Road Terminal | RL | 3853N 07649W | Map |
| USKY2 | Keymar | MD | Maryland | Rail Terminal,Road Terminal | RL | 3936N 07714W | Map |
| USZYK | Keysville | MD | Maryland | Port,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3938N 07715W | Map |
| USKVG | Kingsville | MD | Maryland | Road Terminal | RL | 3926N 07625W | Map |
| USLAP | La Plata | MD | Maryland | Road Terminal | RQ | ||
| USKVN | La Vale | MD | Maryland | Road Terminal | RL | 3939N 07849W | Map |
| USLDR | Landover | MD | Maryland | Road Terminal | RQ | ||
| US6YP | Langley Park | MD | Maryland | Road Terminal | RL | 3859N 07658W | Map |
| USLME | Lanham | MD | Maryland | Road Terminal | RQ | ||
| USLDW | Lansdowne | MD | Maryland | Road Terminal | RL | 3914N 07639W | Map |
| USLB9 | Lansdowne-Baltimore | MD | Maryland | Port,Multimodal Functions (ICDs, etc.) | RQ | 3914N 07639W | Map |
| USLGQ | Largo | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3854N 07650W | Map |
| USLRM | Laurel | MD | Maryland | Road Terminal | RQ | ||
| USDJD | Leeds | MD | Maryland | Road Terminal | RL | 3939N 07552W | Map |
| USLTW | Leonardtown | MD | Maryland | Airport | AI | 3817N 07638W | Map |
| USL7X | Lexington Park | MD | Maryland | Road Terminal | AA | 3815N 07627W | Map |
| US3TW | Libertytown | MD | Maryland | Road Terminal | RL | 3929N 07714W | Map |
| USKW3 | Linkwood | MD | Maryland | Road Terminal | RL | 3832N 07556W | Map |
| USLNM | Linthicum | MD | Maryland | Road Terminal | RQ | ||
| USLTU | Linthicum Heights | MD | Maryland | Road Terminal | RQ | ||
| USLG5 | Long Green | MD | Maryland | Road Terminal | RL | 3928N 07631W | Map |
| USLHX | Lothian | MD | Maryland | Road Terminal | RL | 3849N 07636W | Map |
| USLUK | Luke | MD | Maryland | Road Terminal | RQ | ||
| US3LU | Lusby | MD | Maryland | Road Terminal | RL | 3824N 07627W | Map |
| USLHE | Lutherville-Timonium | MD | Maryland | Road Terminal | RL | 3926N 07637W | Map |
| USZMN | Manchester | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3939N 07653W | Map |
| USMWE | Marlow Heights | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RQ | 3849N 07657W | Map |
| USMTN | Martin Mariet/Baltimore | MD | Maryland | Airport | AI | ||
| USZJV | Maryland City | MD | Maryland | Multimodal Functions (ICDs, etc.) | RL | 3905N 07649W | Map |
| USQMZ | Massey | MD | Maryland | Rail Terminal,Road Terminal | RL | 3918N 07550W | Map |
| USM2H | McHenry | MD | Maryland | Road Terminal | RL | 3933N 07921W | Map |
| USMDV | Middle River | MD | Maryland | Road Terminal | RQ | ||
| USM44 | Middletown | MD | Maryland | Port | RL | 3926N 07732W | Map |
| USUQK | Middletown, Frederick | MD | Maryland | Road Terminal | RL | 3926N 07733W | Map |
| USM4M | Milford Mill | MD | Maryland | Road Terminal | RL | 3920N 07646W | Map |
| USMVB | Millersville | MD | Maryland | Road Terminal | RQ | ||
| USMTL | Millington | MD | Maryland | Road Terminal | RQ | ||
| USIHE | Mitchellville | MD | Maryland | Rail Terminal,Road Terminal | RL | 3855N 07645W | Map |
| US2KN | Monkton | MD | Maryland | Road Terminal | RL | 3934N 07636W | Map |
| USZMR | Monrovia | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3922N 07716W | Map |
| USNMV | Montgomery Village | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3910N 07712W | Map |
| USMYM | Mount Airy | MD | Maryland | Road Terminal | RQ | ||
| USTBO | Mount Hebron | MD | Maryland | Road Terminal | RL | 3918N 07649W | Map |
| USM5T | Mount Savage | MD | Maryland | Rail Terminal,Road Terminal | RL | 3941N 07852W | Map |
| USUTK | Mountain Lake Park | MD | Maryland | Road Terminal | RL | 3924N 07923W | Map |
| USMV5 | Myersville | MD | Maryland | Road Terminal | RL | 3930N 07734W | Map |
| USNNO | Nanticoke | MD | Maryland | Road Terminal | RL | 3816N 07554W | Map |
| USNCA | New Carrollton | MD | Maryland | Road Terminal | RL | 3858N 07652W | Map |
| USNM8 | New Market | MD | Maryland | Road Terminal | RL | 3922N 07716W | Map |
| USNWM | New Windsor | MD | Maryland | Road Terminal | RQ | ||
| USNB7 | Newburg | MD | Maryland | Road Terminal | RL | 3822N 07657W | Map |
| USKT9 | Newmarket | MD | Maryland | Road Terminal | RL | 3828N 07646W | Map |
| USN4B | North Beach | MD | Maryland | Port | RL | 3842N 07631W | Map |
| USTDJ | North Bethesda | MD | Maryland | Road Terminal | RL | 3902N 07707W | Map |
| USNAP | North East | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3936N 07556W | Map |
| USNPZ | North Potomac | MD | Maryland | Rail Terminal,Road Terminal | RL | 3905N 07716W | Map |
| USNT7 | Nottingham | MD | Maryland | Road Terminal | RL | 3911N 07638W | Map |
| USOBT | Oakland | MD | Maryland | Rail Terminal,Road Terminal,Airport | AI | ||
| USOXK | Oakland Mills | MD | Maryland | Road Terminal | RL | 3913N 07650W | Map |
| USOCE | Ocean City | MD | Maryland | Airport | AI | ||
| USODN | Odenton | MD | Maryland | Road Terminal | RQ | ||
| USOXE | Oldtown | MD | Maryland | Road Terminal | RL | 3932N 07836W | Map |
| USOEY | Olney | MD | Maryland | Road Terminal | RQ | ||
| USOQP | Orchard Beach | MD | Maryland | Road Terminal | RL | 3910N 07631W | Map |
| USOW7 | Owings | MD | Maryland | Road Terminal | RL | 3843N 07636W | Map |
| USOWI | Owings Mills | MD | Maryland | Road Terminal | RQ | ||
| USOXU | Oxford | MD | Maryland | Road Terminal | RL | 3841N 07610W | Map |
| USOXH | Oxon Hill | MD | Maryland | Road Terminal | RL | 3847N 07700W | Map |
| US4RK | Parkton | MD | Maryland | Road Terminal | RL | 3938N 07639W | Map |
| USPK4 | Parkville | MD | Maryland | Road Terminal | RL | 3922N 07633W | Map |
| USPG9 | Parsonsburg | MD | Maryland | Road Terminal | RL | 3823N 07528W | Map |
| USYPC | Pasadena | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3906N 07634W | Map |
| USNHK | Patuxent River | MD | Maryland | Airport | AI | ||
| USWJ3 | Perry Hall | MD | Maryland | Multimodal Functions (ICDs, etc.) | RL | 3924N 07627W | Map |
| USPYB | Perryman | MD | Maryland | Port,Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3928N 07612W | Map |
| USPYI | Perryville | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3934N 07604W | Map |
| USP2X | Phoenix | MD | Maryland | Road Terminal | RL | 3930N 07636W | Map |
| USPXZ | Pikesville | MD | Maryland | Road Terminal | RQ | ||
| USPYP | Piney Point | MD | Maryland | Road Terminal | RQ | ||
| USZ4D | Pinto | MD | Maryland | Road Terminal | AA | 3934N 07850W | Map |
| USM6D | Pittsville | MD | Maryland | Road Terminal | RL | 3823N 07524W | Map |
| USPKM | Pocomoke City | MD | Maryland | Road Terminal | RQ | ||
| USO4F | Pomfret | MD | Maryland | Road Terminal | RL | 3834N 07701W | Map |
| USZE7 | Port Deposit | MD | Maryland | Road Terminal | RL | 3936N 07606W | Map |
| USPOL | Portland | MD | Maryland | Road Terminal | RQ | ||
| USPMK | Potomac | MD | Maryland | Road Terminal | RL | ||
| USPBV | Preston | MD | Maryland | Road Terminal | RQ | ||
| USPFK | Prince Frederick | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3832N 07635W | Map |
| USPA8 | Princess Anne | MD | Maryland | Road Terminal | RL | 3812N 07541W | Map |
| USNYJ | Quantico | MD | Maryland | Road Terminal | AA | 3822N 07544W | Map |
| USQNA | Queen Anne | MD | Maryland | Road Terminal | RL | 3855N 07557W | Map |
| USQUE | Queenstown | MD | Maryland | Road Terminal | RQ | ||
| USRA9 | Randallstown | MD | Maryland | Road Terminal | RL | 3922N 07647W | Map |
| USRSW | Reisterstown | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3927N 07649W | Map |
| USRLW | Relay | MD | Maryland | Road Terminal | RQ | ||
| USRH3 | Rhodesdale | MD | Maryland | Road Terminal | RL | 3834N 07550W | Map |
| USRGZ | Ridgely | MD | Maryland | Rail Terminal,Road Terminal | RL | 3857N 07553W | Map |
| USRUN | Rising Sun | MD | Maryland | Road Terminal | RQ | ||
| USR6V | Riva | MD | Maryland | Road Terminal | RL | 3857N 07634W | Map |
| USRVL | Riverdale | MD | Maryland | Road Terminal | RQ | ||
| USRKV | Rockville | MD | Maryland | Road Terminal | RQ | ||
| USRSA | Rosedale | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3919N 07630W | Map |
| USIAI | Sabillasville | MD | Maryland | Road Terminal | RL | 3942N 07727W | Map |
| USSKC | Saint Charles | MD | Maryland | Road Terminal | RL | 3836N 07656W | Map |
| USS2E | Saint Inigoes | MD | Maryland | Road Terminal | RL | 3809N 07625W | Map |
| USXSM | Saint Marys City | MD | Maryland | Airport | AI | 3811N 07626W | Map |
| USIIC | Saint Michaels | MD | Maryland | Road Terminal | RL | 3847N 07613W | Map |
| USSBY | Salisbury | MD | Maryland | Road Terminal,Airport | AI | 3821N 07535W | Map |
| USYZR | Sandy Spring | MD | Maryland | Road Terminal | RL | 3908N 07701W | Map |
| USSGE | Savage | MD | Maryland | Road Terminal | RQ | ||
| USSEV | Severn | MD | Maryland | Road Terminal | RQ | ||
| USSNR | Severna Park | MD | Maryland | Road Terminal | RQ | ||
| USSIH | Showell | MD | Maryland | Road Terminal | RQ | ||
| USSIS | Silver Spring | MD | Maryland | Road Terminal | RQ | ||
| USJHG | Smithsburg | MD | Maryland | Road Terminal | RL | 3939N 07734W | Map |
| USNSW | Snow Hill | MD | Maryland | Road Terminal | RL | 3810N 07523W | Map |
| USOMU | Solomons | MD | Maryland | Port,Road Terminal | RL | 3819N 07627W | Map |
| USS9B | South Baltimore | MD | Maryland | Fixed Transport Functions (e.g. Oil platform) | RL | 3916N 07636W | Map |
| USSRM | Sparks | MD | Maryland | Road Terminal | RQ | ||
| USFKG | Sparks Glencoe | MD | Maryland | Road Terminal | RL | 3931N 07638W | Map |
| USPPO | Sparrows Point | MD | Maryland | Road Terminal | RL | 3913N 07628W | Map |
| USSFK | Springfield | MD | Maryland | Road Terminal | RQ | ||
| USSVV | Stevensville | MD | Maryland | Road Terminal | RQ | ||
| USST6 | Street | MD | Maryland | Road Terminal | RL | 3940N 07622W | Map |
| US3SM | Sudlersville | MD | Maryland | Road Terminal | RL | 3911N 07551W | Map |
| USTKB | Sugarland | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3427N 09157W | Map |
| USSIL | Suitland | MD | Maryland | Road Terminal | RL | ||
| USZJF | Sykesville | MD | Maryland | Multimodal Functions (ICDs, etc.) | RL | 3922N 07658W | Map |
| USZIV | Takoma Park | MD | Maryland | Multimodal Functions (ICDs, etc.) | RL | 3858N 07700W | Map |
| USTFY | Taneytown | MD | Maryland | Road Terminal | RQ | ||
| USTHH | Temple Hills | MD | Maryland | Road Terminal | RL | 3849N 07656W | Map |
| USTXA | Texas | MD | Maryland | Road Terminal | RQ | ||
| USURM | Thurmont | MD | Maryland | Rail Terminal,Road Terminal | RL | 3937N 07724W | Map |
| USTUM | Timonium | MD | Maryland | Road Terminal | RL | 3926N 07637W | Map |
| USTWS | Towson | MD | Maryland | Road Terminal | RQ | ||
| USTR3 | Tracys Landing | MD | Maryland | Road Terminal | RL | 3846N 07635W | Map |
| USTZ4 | Trappe | MD | Maryland | Road Terminal | RL | 3839N 07603W | Map |
| USTXD | Tuxedo | MD | Maryland | Road Terminal | RQ | ||
| USUNB | Union Bridge | MD | Maryland | Road Terminal | RL | 3934N 07710W | Map |
| USMB9 | Upper Malboro | MD | Maryland | Multimodal Functions (ICDs, etc.) | RQ | 3848N 07645W | Map |
| USUPM | Upper Marlboro | MD | Maryland | Road Terminal | RL | ||
| USUP8 | Upperco | MD | Maryland | Road Terminal | RL | 3933N 07650W | Map |
| USVMD | Vienna | MD | Maryland | Port | RL | 3829N 07549W | Map |
| USWP7 | Wagners Point | MD | Maryland | Fixed Transport Functions (e.g. Oil platform) | RL | 3914N 07634W | Map |
| USWFM | Waldorf | MD | Maryland | Road Terminal | RQ | ||
| USXNX | Walkersville | MD | Maryland | Road Terminal | RQ | ||
| USWW3 | Warwick | MD | Maryland | Road Terminal | RL | 3925N 07547W | Map |
| USBWI | Washington-Baltimore Int Apt | MD | Maryland | Airport | AI | ||
| USWFX | Waverly | MD | Maryland | Road Terminal | RQ | ||
| US289 | West Friendship | MD | Maryland | Rail Terminal,Road Terminal | RL | 3918N 07657W | Map |
| USW8C | West Ocean City | MD | Maryland | Road Terminal | RL | 3819N 07506W | Map |
| USWPZ | Westernport | MD | Maryland | Road Terminal | RQ | ||
| USWMD | Westminster | MD | Maryland | Road Terminal | RQ | ||
| USZXQ | Westover | MD | Maryland | Port,Road Terminal | RL | 3807N 07542W | Map |
| USW6P | Westport | MD | Maryland | Road Terminal | RL | 3915N 07638W | Map |
| USAE3 | Whaleysville | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RQ | 3358N 11245W | Map |
| USWFA | Wheaton | MD | Maryland | Road Terminal | RL | 3902N 07703W | Map |
| USHIM | White Marsh | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3923N 07625W | Map |
| USWWM | White Marsh Station | MD | Maryland | Road Terminal | RL | 3922N 07625W | Map |
| USW9T | White Oak | MD | Maryland | Road Terminal | RL | 3902N 07659W | Map |
| USXWP | White Plains | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3835N 07656W | Map |
| USIFD | Whiteford | MD | Maryland | Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3943N 07621W | Map |
| USWFP | Williamsport | MD | Maryland | Road Terminal | RQ | ||
| USWM9 | Windsor Mill | MD | Maryland | Road Terminal | RL | 3919N 07645W | Map |
| US4WM | Wittman | MD | Maryland | Road Terminal | RL | 3847N 07617W | Map |
| USOOD | Woodbine | MD | Maryland | Rail Terminal,Road Terminal,Multimodal Functions (ICDs, etc.) | RL | 3921N 07703W | Map |
| USW2N | Woodlawn | MD | Maryland | Road Terminal | RL | 3938N 07604W | Map |
| USQWQ | Woodsboro | MD | Maryland | Rail Terminal,Road Terminal | RL | 3932N 07719W | Map |
| USWDK | Woodstock | MD | Maryland | Road Terminal | RQ | ||
| USWO8 | Worton | MD | Maryland | Road Terminal | RL | 3916N 07605W | Map |
| USWM6 | Wye Mills | MD | Maryland | Road Terminal | RL | 3856N 07604W | Map |
| USWYI | Wyemills | MD | Maryland | Road Terminal | RQ |
AA - Approved by competent national government agency
AC - Approved by Customs Authority
AF - Approved by national facilitation body
AI - Code adopted by international organisation (IATA, ECLAC, EUROSTAT, etc.)
AM - Approved by the UN/LOCODE Maintenance Agency
AQ - Entry approved, functions not verified
AS - Approved by national standardisation body
QQ - Original entry not verified since date indicated
RL - Recognised location - Existence and representation of location name confirmed by check against nominated gazetteer or other reference work
RN - Request from credible national sources for locations in their own country
RQ - Request under consideration
RR - Request rejected
UR - Entry included on user's request; not officially approved
XX - Entry that will be removed from the next issue of UN/LOCODE
You can use the search function above to enter city names to find the UN/LOCODE. Or you can search for the UN/LOCODE of corresponding United States of America (the) cities by region.