State Profile
Maryland — neighborhoods by ZIP code
Maryland spans 24 counties and approximately 605 active ZIP code tabulation areas, home to roughly 6,161,258 residents according to the most recent American Community Survey 5-Year Estimates from the U.S. Census Bureau.
The pages below break the state down city by city, then ZIP code by ZIP code. Each ZIP profile covers demographics, cost of living indicators (median income, median home value, and median rent), and the surrounding neighborhoods within roughly 30 miles. Use this as a starting point — not a substitute — when researching a move, planning a trip, or just trying to understand how different parts of Maryland compare.
Statewide, the median household income across these ZIPs averages out to roughly $75,819, with a typical owner-occupied home valued near $284,504. Those numbers conceal a wide range — some ZIP codes here have median incomes more than triple the state average, while rural ZIPs in the same state can sit far below it. The city and ZIP-level breakdowns below show where those differences land geographically.
Largest ZIP codes by population
| ZIP | City | Population | Median income |
|---|---|---|---|
| 20906 | Silver Spring | 71,560 | $91,563 |
| 21234 | Parkville | 66,095 | $80,692 |
| 20878 | Gaithersburg | 65,954 | $141,902 |
| 21740 | Hagerstown | 62,760 | $57,150 |
| 20874 | Germantown | 61,922 | $108,211 |
| 21122 | Pasadena | 61,444 | $118,302 |
| 21222 | Dundalk | 60,013 | $60,483 |
| 21117 | Owings Mills | 58,516 | $96,672 |
| 20904 | Silver Spring | 56,532 | $90,926 |
| 20744 | Fort Washington | 55,820 | $121,068 |
Cities & towns in Maryland
Each city below links to a page listing its ZIP codes with neighborhood profiles. Cities are ordered by total population.
| City | ZIP codes | Population | Median income |
|---|---|---|---|
| Baltimore | 42 | 598,831 | $31,351 |
| Silver Spring | 16 | 306,454 | $46,036 |
| Hyattsville | 7 | 171,783 | $59,096 |
| Gaithersburg | 9 | 146,072 | $57,776 |
| Rockville | 8 | 145,904 | $62,558 |
| Frederick | 6 | 145,467 | $77,280 |
| Laurel | 7 | 118,451 | $58,896 |
| Bowie | 7 | 105,622 | $82,814 |
| Upper Marlboro | 5 | 103,606 | $50,113 |
| Columbia | 3 | 101,974 | $121,357 |
| Hagerstown | 6 | 99,922 | $22,909 |
| Annapolis | 8 | 96,378 | $74,378 |
| Glen Burnie | 3 | 93,590 | $58,458 |
| Ellicott City | 3 | 89,837 | $107,735 |
| Waldorf | 4 | 88,811 | $87,757 |
| Germantown | 3 | 88,494 | $71,917 |
| Bethesda | 11 | 85,577 | $55,387 |
| Salisbury | 4 | 69,488 | $32,565 |
| Bel Air | 2 | 67,582 | $122,410 |
| Parkville | 1 | 66,095 | $80,692 |
| Westminster | 2 | 62,827 | $102,741 |
| Pasadena | 2 | 61,444 | $59,151 |
| Dundalk | 1 | 60,013 | $60,483 |
| Owings Mills | 1 | 58,516 | $96,672 |
| Fort Washington | 2 | 55,820 | $60,534 |
| Gwynn Oak | 1 | 51,765 | $59,822 |
| Catonsville | 1 | 50,268 | $102,592 |
| Potomac | 2 | 49,320 | $120,848 |
| Towson | 5 | 45,796 | $37,091 |
| Elkton | 2 | 45,081 | $40,499 |
| Essex | 1 | 43,822 | $68,140 |
| Lanham | 2 | 43,797 | $49,777 |
| Middle River | 1 | 42,652 | $77,571 |
| Cumberland | 5 | 41,291 | $11,391 |
| College Park | 3 | 40,846 | $26,482 |
| Temple Hills | 2 | 40,763 | $39,690 |
| Windsor Mill | 1 | 39,501 | $80,335 |
| Clinton | 1 | 39,399 | $124,371 |
| District Heights | 2 | 39,279 | $35,629 |
| Lutherville Timonium | 2 | 38,961 | $60,473 |
| Capitol Heights | 5 | 38,692 | $14,604 |
| Nottingham | 1 | 38,632 | $91,855 |
| Pikesville | 2 | 37,319 | $44,851 |
| Sykesville | 1 | 37,219 | $138,923 |
| Severn | 1 | 37,041 | $127,055 |
| Odenton | 1 | 36,495 | $116,584 |
| Elkridge | 1 | 36,176 | $126,378 |
| Halethorpe | 1 | 35,052 | $78,626 |
| Reisterstown | 1 | 35,038 | $105,300 |
| Brooklyn | 1 | 34,872 | $49,171 |
| Montgomery Village | 1 | 34,692 | $94,586 |
| Abingdon | 1 | 32,565 | $108,703 |
| Randallstown | 1 | 32,070 | $83,305 |
| Mount Airy | 1 | 31,653 | $148,909 |
| Chevy Chase | 2 | 31,080 | $92,936 |
| Rosedale | 1 | 30,983 | $84,118 |
| Severna Park | 1 | 29,710 | $171,848 |
| Oxon Hill | 2 | 29,355 | $38,934 |
| Beltsville | 2 | 28,660 | $51,408 |
| Greenbelt | 3 | 28,458 | $26,958 |
| Suitland | 2 | 28,078 | $39,377 |
| Clarksburg | 1 | 27,420 | $162,472 |
| Lexington Park | 1 | 27,053 | $96,650 |
| Aberdeen | 1 | 25,908 | $76,250 |
| Takoma Park | 2 | 25,823 | $40,296 |
| Olney | 2 | 25,488 | $80,143 |
| Cockeysville | 1 | 25,133 | $92,333 |
| Crofton | 1 | 25,126 | $132,829 |
| Edgewood | 1 | 25,110 | $86,195 |
| Berlin | 1 | 24,456 | $87,611 |
| Riverdale | 2 | 24,438 | $42,876 |
| Easton | 1 | 23,589 | $80,434 |
| Mechanicsville | 1 | 23,346 | $115,729 |
| Arnold | 1 | 23,144 | $136,705 |
| Hanover | 1 | 22,041 | $137,237 |
| La Plata | 1 | 21,248 | $130,168 |
| Edgewater | 1 | 21,060 | $127,554 |
| Lusby | 1 | 21,054 | $110,669 |
| North East | 1 | 19,938 | $105,876 |
| Havre De Grace | 1 | 19,820 | $100,853 |
| Kensington | 2 | 19,273 | $82,711 |
| Forest Hill | 1 | 18,076 | $117,551 |
| Millersville | 1 | 18,046 | $142,001 |
| Cambridge | 1 | 17,945 | $51,094 |
| Burtonsville | 1 | 16,680 | $137,990 |
| Joppa | 1 | 16,590 | $100,573 |
| Derwood | 1 | 16,558 | $146,036 |
| Jessup | 1 | 16,035 | $111,200 |
| Perry Hall | 1 | 15,934 | $122,021 |
| Gambrills | 1 | 15,687 | $152,232 |
| Leonardtown | 1 | 15,522 | $137,854 |
| Hampstead | 1 | 15,146 | $96,367 |
| New Market | 1 | 15,096 | $159,542 |
| Huntingtown | 1 | 15,058 | $144,035 |
| Brandywine | 1 | 14,800 | $145,445 |
| Stevensville | 1 | 14,193 | $119,154 |
| California | 1 | 13,925 | $110,960 |
| Clarksville | 1 | 13,817 | $238,095 |
| Oakland | 1 | 13,640 | $61,824 |
| Chestertown | 2 | 13,636 | $34,921 |
| Fallston | 1 | 13,419 | $150,593 |
| Frostburg | 1 | 13,229 | $55,761 |
| Damascus | 1 | 12,932 | $129,775 |
| Prince Frederick | 1 | 12,874 | $115,710 |
| Middletown | 1 | 12,562 | $142,887 |
| Accokeek | 1 | 12,080 | $151,475 |
| Manchester | 1 | 12,024 | $110,503 |
| White Plains | 1 | 11,455 | $121,528 |
| Thurmont | 1 | 11,412 | $90,091 |
| Hollywood | 1 | 11,089 | $151,193 |
| Ocean City | 2 | 10,951 | $34,313 |
| Walkersville | 1 | 10,882 | $125,203 |
| Taneytown | 1 | 10,879 | $83,669 |
| Rising Sun | 1 | 10,804 | $88,583 |
| Chesapeake Beach | 1 | 10,676 | $130,008 |
| Princess Anne | 1 | 10,659 | $55,000 |
| Indian Head | 1 | 10,629 | $88,750 |
| Centreville | 1 | 10,401 | $116,827 |
| Linthicum Heights | 1 | 10,346 | $118,048 |
| Fort George G Meade | 1 | 10,011 | $94,110 |
| Boonsboro | 1 | 9,999 | $96,555 |
| Denton | 1 | 9,988 | $65,541 |
| Smithsburg | 1 | 9,866 | $94,432 |
| Bladensburg | 1 | 9,781 | $58,884 |
| Williamsport | 1 | 9,772 | $84,833 |
| Finksburg | 1 | 9,759 | $125,098 |
| Mount Rainier | 1 | 9,630 | $64,674 |
| Sparrows Point | 1 | 9,605 | $116,000 |
| Boyds | 1 | 9,312 | $177,588 |
| Owings | 1 | 9,274 | $158,924 |
| Woodbine | 1 | 9,034 | $179,271 |
| Davidsonville | 1 | 8,360 | $171,185 |
| Crownsville | 1 | 8,040 | $142,202 |
| Brookeville | 1 | 7,949 | $195,564 |
| Great Mills | 1 | 7,853 | $131,042 |
| Monrovia | 1 | 7,786 | $175,809 |
| Phoenix | 1 | 7,722 | $187,500 |
| Delmar | 1 | 7,446 | $69,362 |
| Lothian | 1 | 7,435 | $86,633 |
| Jarrettsville | 1 | 7,366 | $114,200 |
| Dunkirk | 1 | 7,344 | $166,976 |
| Parkton | 1 | 7,319 | $148,090 |
| Ijamsville | 1 | 7,260 | $179,068 |
| Woodstock | 1 | 7,222 | $123,858 |
| Pocomoke City | 1 | 7,072 | $47,901 |
| Street | 1 | 7,059 | $115,000 |
| Glenn Dale | 1 | 6,812 | $155,794 |
| Bryans Road | 1 | 6,792 | $118,864 |
| Saint Leonard | 1 | 6,750 | $119,792 |
| Clear Spring | 1 | 6,709 | $84,906 |
| Poolesville | 1 | 6,651 | $193,264 |
| Brunswick | 1 | 6,630 | $100,043 |
| Emmitsburg | 1 | 6,588 | $82,636 |
| Sparks Glencoe | 1 | 6,517 | $113,711 |
| Federalsburg | 1 | 6,504 | $59,135 |
| New Windsor | 1 | 6,434 | $106,823 |
| Hughesville | 1 | 6,221 | $141,382 |
| Brentwood | 1 | 6,218 | $82,241 |
| Belcamp | 1 | 6,177 | $96,424 |
| Fulton | 1 | 6,125 | $246,618 |
| Marriottsville | 1 | 6,077 | $195,000 |
| Port Deposit | 1 | 5,975 | $89,797 |
| Curtis Bay | 1 | 5,902 | $71,500 |
| Chester | 1 | 5,776 | $94,815 |
| Jefferson | 1 | 5,706 | $129,085 |
| White Hall | 1 | 5,625 | $109,848 |
| Kingsville | 1 | 5,597 | $113,472 |
| Fruitland | 1 | 5,569 | $60,513 |
| Myersville | 1 | 5,553 | $142,470 |
| Charlotte Hall | 1 | 5,471 | $121,908 |
| Baldwin | 1 | 5,382 | $161,141 |
| Perryville | 1 | 5,332 | $73,608 |
| Grasonville | 1 | 5,064 | $116,953 |
| Hurlock | 1 | 5,021 | $52,143 |
| Adamstown | 1 | 4,988 | $158,918 |
| Snow Hill | 1 | 4,913 | $67,107 |
| Union Bridge | 1 | 4,855 | $88,984 |
| Monkton | 1 | 4,838 | $140,966 |
| Hebron | 1 | 4,837 | $105,836 |
| Westover | 2 | 4,818 | $25,750 |
| North Beach | 1 | 4,767 | $86,534 |
| Preston | 1 | 4,753 | $78,000 |
| Greensboro | 1 | 4,734 | $56,173 |
| Knoxville | 1 | 4,610 | $103,081 |
| Glen Arm | 1 | 4,530 | $163,462 |
| Conowingo | 1 | 4,462 | $78,691 |
| Sharpsburg | 1 | 4,389 | $82,256 |
| White Marsh | 1 | 4,322 | $138,654 |
| Riva | 1 | 4,255 | $141,411 |
| Crisfield | 1 | 4,138 | $46,875 |
| Ridgely | 1 | 4,100 | $78,922 |
| Grantsville | 1 | 3,945 | $60,455 |
| Queenstown | 1 | 3,883 | $124,375 |
| Glenwood | 1 | 3,786 | $239,821 |
| Saint Michaels | 1 | 3,646 | $76,667 |
| Pittsville | 1 | 3,628 | $72,368 |
| Hancock | 1 | 3,613 | $50,833 |
| Earleville | 1 | 3,451 | $101,806 |
| Parsonsburg | 1 | 3,366 | $70,266 |
| Keedysville | 1 | 3,303 | $92,222 |
| Shady Side | 1 | 3,280 | $112,500 |
| Westernport | 1 | 3,248 | $57,693 |
| Highland | 1 | 3,220 | $215,833 |
| Mardela Springs | 1 | 3,165 | $81,173 |
| Pylesville | 1 | 3,110 | $158,550 |
| Andrews Air Force Base | 1 | 3,099 | $83,966 |
| Upperco | 1 | 3,063 | $129,231 |
| Freeland | 1 | 3,051 | $99,513 |
| Ashton | 1 | 3,031 | $175,250 |
| Churchville | 1 | 2,974 | $128,220 |
| Harwood | 1 | 2,966 | $118,092 |
| Darlington | 1 | 2,958 | $85,833 |
| Bishopville | 1 | 2,927 | $103,387 |
| Port Republic | 1 | 2,897 | $161,071 |
| Trappe | 1 | 2,793 | $66,163 |
| East New Market | 1 | 2,787 | $67,181 |
| Newburg | 1 | 2,780 | $93,313 |
| Keymar | 1 | 2,722 | $96,250 |
| Whiteford | 1 | 2,716 | $108,424 |
| Aberdeen Proving Ground | 1 | 2,703 | $118,750 |
| Woodsboro | 1 | 2,699 | $120,732 |
| Eden | 1 | 2,686 | $42,346 |
| Churchton | 1 | 2,669 | $128,864 |
| Nanjemoy | 1 | 2,590 | $76,250 |
| Rock Hall | 1 | 2,571 | $77,875 |
| West River | 1 | 2,564 | $178,854 |
| Swanton | 1 | 2,517 | $72,159 |
| Chesapeake City | 1 | 2,469 | $87,841 |
| Cheltenham | 1 | 2,457 | $116,475 |
| Glenelg | 1 | 2,406 | $250,001 |
| Point Of Rocks | 1 | 2,360 | $126,944 |
| Millington | 1 | 2,346 | $76,042 |
| Cordova | 1 | 2,329 | $98,750 |
| West Friendship | 1 | 2,309 | $191,458 |
| Sandy Spring | 1 | 2,279 | $152,768 |
| Willards | 1 | 2,222 | $75,655 |
| Marion Station | 1 | 2,219 | $85,929 |
| Savage | 1 | 2,219 | $98,621 |
| Marydel | 1 | 2,205 | $56,806 |
| Church Hill | 1 | 2,187 | $69,068 |
| Dayton | 1 | 2,145 | $185,195 |
| Lonaconing | 1 | 2,095 | $57,143 |
| Deale | 1 | 2,081 | $115,451 |
| Pomfret | 1 | 2,060 | $128,325 |
| Accident | 1 | 2,056 | $67,708 |
| Port Tobacco | 1 | 2,055 | $156,161 |
| Friendsville | 1 | 2,014 | $56,250 |
| Sabillasville | 1 | 1,975 | $62,043 |
| Dickerson | 1 | 1,927 | $152,917 |
| Colora | 1 | 1,884 | $102,601 |
| Sunderland | 1 | 1,884 | $174,750 |
| Sudlersville | 1 | 1,842 | $76,250 |
| Galena | 1 | 1,836 | $120,169 |
| Cabin John | 1 | 1,787 | $211,196 |
| Flintstone | 1 | 1,783 | $57,115 |
| Rawlings | 1 | 1,782 | $40,625 |
| Rohrersville | 1 | 1,731 | $111,648 |
| Mount Savage | 1 | 1,693 | $58,250 |
| Worton | 1 | 1,685 | $75,865 |
| Mc Henry | 1 | 1,682 | $58,519 |
| Oldtown | 1 | 1,515 | $47,917 |
| Warwick | 1 | 1,495 | $69,732 |
| Queen Anne | 1 | 1,437 | $105,648 |
| Barton | 1 | 1,426 | $59,792 |
| Patuxent River | 1 | 1,403 | $53,125 |
| Henderson | 1 | 1,374 | $77,721 |
| Callaway | 1 | 1,325 | $154,128 |
| Oxford | 1 | 1,260 | $77,288 |
| Cobb Island | 1 | 1,248 | $126,657 |
| Avenue | 1 | 1,240 | $112,625 |
| Kennedyville | 1 | 1,231 | — |
| Rhodesdale | 1 | 1,225 | $68,393 |
| Welcome | 1 | 1,210 | $141,875 |
| Fairplay | 1 | 1,202 | $83,313 |
| Solomons | 1 | 1,170 | $89,295 |
| Cascade | 1 | 1,145 | $74,479 |
| Bel Alton | 1 | 1,127 | $129,598 |
| Elk Mills | 1 | 1,089 | $113,687 |
| Bushwood | 1 | 1,087 | $78,654 |
| Dowell | 1 | 1,072 | $86,861 |
| Tracys Landing | 1 | 992 | $109,931 |
| Clements | 1 | 990 | $128,977 |
| Newark | 1 | 988 | $83,839 |
| Marbury | 1 | 978 | $93,864 |
| Saint Marys City | 1 | 963 | — |
| Vienna | 1 | 943 | $66,375 |
| Quantico | 1 | 924 | $74,167 |
| Rocky Ridge | 1 | 880 | $76,063 |
| Cecilton | 1 | 878 | — |
| Maugansville | 1 | 873 | $44,531 |
| Big Pool | 1 | 864 | $92,868 |
| Funkstown | 1 | 861 | $52,794 |
| Tall Timbers | 1 | 843 | $139,500 |
| Garrett Park | 1 | 840 | $250,001 |
| Goldsboro | 1 | 824 | $56,447 |
| Piney Point | 1 | 807 | $165,650 |
| Tilghman | 1 | 805 | $55,208 |
| Faulkner | 1 | 802 | $196,250 |
| Annapolis Junction | 1 | 794 | $79,236 |
| Stockton | 1 | 778 | $95,313 |
| Sharptown | 1 | 776 | $83,125 |
| Chaptico | 1 | 775 | — |
| Deal Island | 1 | 765 | $42,250 |
| Issue | 1 | 763 | $119,167 |
| Charlestown | 1 | 740 | $70,347 |
| Corriganville | 1 | 740 | $70,885 |
| Valley Lee | 1 | 721 | $154,833 |
| Hydes | 1 | 694 | $137,399 |
| Cooksville | 1 | 689 | $250,001 |
| Stevenson | 1 | 676 | — |
| Royal Oak | 1 | 657 | $167,647 |
| Secretary | 1 | 642 | $66,458 |
| Dameron | 1 | 631 | $111,550 |
| Bryantown | 1 | 630 | $123,438 |
| Spencerville | 1 | 630 | $106,050 |
| Saint Inigoes | 1 | 627 | $137,188 |
| Galesville | 1 | 604 | $139,167 |
| Washington Grove | 1 | 604 | $131,528 |
| Aquasco | 1 | 603 | $102,647 |
| Woolford | 1 | 598 | $100,481 |
| Ridge | 1 | 588 | — |
| Ellerslie | 1 | 575 | $43,929 |
| Whaleyville | 1 | 573 | $110,709 |
| Kitzmiller | 1 | 571 | $82,250 |
| Bozman | 1 | 557 | $110,778 |
| Little Orleans | 1 | 544 | $55,592 |
| Friendship | 1 | 542 | $112,065 |
| Nanticoke | 1 | 541 | — |
| Glyndon | 1 | 526 | — |
| Broomes Island | 1 | 524 | $183,393 |
| Barclay | 1 | 522 | $83,472 |
| Mcdaniel | 1 | 450 | $107,361 |
| Fort Howard | 1 | 438 | $73,542 |
| Girdletree | 1 | 394 | — |
| Tyaskin | 1 | 393 | $94,118 |
| Linkwood | 1 | 382 | $34,659 |
| Barnesville | 1 | 368 | $195,938 |
| Fishing Creek | 1 | 367 | $49,250 |
| Betterton | 1 | 363 | $62,750 |
| Upper Falls | 1 | 362 | $129,583 |
| Crumpton | 1 | 360 | $91,417 |
| Scotland | 1 | 360 | $143,468 |
| Church Creek | 1 | 348 | $56,375 |
| Wittman | 1 | 333 | $108,244 |
| Gibson Island | 1 | 318 | $250,001 |
| Massey | 1 | 308 | $92,000 |
| Drayden | 1 | 307 | $193,274 |
| Glen Echo | 1 | 282 | $194,375 |
| Midlothian | 1 | 277 | — |
| Braddock Heights | 1 | 272 | $176,736 |
| Brinklow | 1 | 268 | $192,083 |
| Wye Mills | 1 | 255 | — |
| Ewell | 1 | 253 | $83,401 |
| Perry Point | 1 | 251 | — |
| Abell | 1 | 247 | $174,750 |
| Coltons Point | 1 | 239 | $56,806 |
| Still Pond | 1 | 218 | — |
| Gunpowder | 1 | 216 | $91,667 |
| Buckeystown | 1 | 209 | $77,375 |
| Loveville | 1 | 203 | — |
| Claiborne | 1 | 201 | $87,813 |
| Taylors Island | 1 | 186 | $87,708 |
| Madison | 1 | 181 | $137,500 |
| Libertytown | 1 | 176 | — |
| Midland | 1 | 167 | — |
| Sherwood | 1 | 164 | $150,809 |
| Beallsville | 1 | 161 | — |
| Allen | 1 | 160 | $127,891 |
| Park Hall | 1 | 159 | — |
| Hillsboro | 1 | 149 | $69,375 |
| Benedict | 1 | 147 | — |
| Burkittsville | 1 | 143 | $90,000 |
| Neavitt | 1 | 143 | $120,644 |
| Bloomington | 1 | 133 | — |
| Fork | 1 | 113 | — |
| Toddville | 1 | 113 | $59,375 |
| Harmans | 1 | 105 | $180,167 |
| Newcomb | 1 | 105 | — |
| Tylerton | 1 | 104 | $78,977 |
| Luke | 1 | 94 | $63,125 |
| Bivalve | 1 | 81 | — |
| Butler | 1 | 68 | $76,131 |
| Crapo | 1 | 68 | $60,313 |
| Wingate | 1 | 46 | — |
| Saint James | 1 | 41 | — |
| Ingleside | 1 | 40 | — |
| Maryland Line | 1 | 40 | — |
| Crocheron | 1 | 27 | $76,250 |
| Georgetown | 1 | 27 | — |
| Hunt Valley | 2 | 26 | — |
| Upper Fairmount | 1 | 24 | — |
| Perryman | 1 | 21 | — |
| Brownsville | 1 | 12 | — |
| Barstow | 1 | 0 | — |
| Benson | 1 | 0 | — |
| Bethlehem | 1 | 0 | — |
| Bittinger | 1 | 0 | — |
| Boring | 1 | 0 | — |
| Brooklandville | 1 | 0 | — |
| Cavetown | 1 | 0 | — |
| Chase | 1 | 0 | — |
| Chewsville | 1 | 0 | — |
| Childs | 1 | 0 | — |
| Compton | 1 | 0 | — |
| Dhs | 1 | 0 | — |
| Eckhart Mines | 1 | 0 | — |
| Helen | 1 | 0 | — |
| Ironsides | 1 | 0 | — |
| Ladiesburg | 1 | 0 | — |
| Lineboro | 1 | 0 | — |
| Lisbon | 1 | 0 | — |
| Long Green | 1 | 0 | — |
| Manokin | 1 | 0 | — |
| Mayo | 1 | 0 | — |
| Morganza | 1 | 0 | — |
| Mount Victoria | 1 | 0 | — |
| New Midway | 1 | 0 | — |
| Pinto | 1 | 0 | — |
| Powellville | 1 | 0 | — |
| Price | 1 | 0 | — |
| Rehobeth | 1 | 0 | — |
| Riderwood | 1 | 0 | — |
| Rock Point | 1 | 0 | — |
| Showell | 1 | 0 | — |
| Simpsonville | 1 | 0 | — |
| Southern Md Facility | 2 | 0 | — |
| Spring Gap | 1 | 0 | — |
| Suburb Maryland Fac | 1 | 0 | — |
| Templeville | 1 | 0 | — |
| Tuscarora | 1 | 0 | — |
| Unionville | 1 | 0 | — |