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Maryland ZIP codes

Quick answer

Maryland contains 477 ZIP code tabulation areas. The statewide sales tax base rate is 6% with no local add-ons.

Type the 5-digit ZIP to open its profile.

Top 100 ZIP codes by population

Largest by population, Census 2019-2023 ACS 5-year estimates.

ZIPCountyPopulationMedian incomeMedian home valueMedian rent
20906Montgomery County71,216$92,964$440,600$1,945
20878Montgomery County65,236$142,062$675,200$2,188
21234Baltimore County65,010$83,139$276,000$1,542
21740Washington County63,140$59,410$241,600$1,031
20874Montgomery County62,233$109,648$385,300$1,938
21122Anne Arundel County61,589$121,732$412,100$2,077
21117Baltimore County61,337$100,934$370,700$1,817
21222Baltimore County58,935$61,934$200,800$1,390
20904Montgomery County57,244$93,322$533,500$1,893
21061Anne Arundel County56,453$86,081$326,000$1,661
20744Prince George's County56,236$124,838$418,100$1,751
20902Montgomery County53,170$111,408$531,200$2,088
20772Prince George's County52,768$135,576$443,500$2,045
20774Prince George's County52,221$128,392$439,500$2,213
21215Baltimore city52,078$47,606$189,900$1,177
20783Prince George's County50,893$87,052$400,400$1,701
20850Montgomery County50,365$122,691$687,200$2,277
21206Baltimore city49,901$62,965$213,700$1,215
20854Montgomery County49,694$250,001$1,105,300$3,180
21207Baltimore County49,599$64,284$248,400$1,390
21228Baltimore County49,417$107,714$389,200$1,631
20852Montgomery County47,857$121,496$646,100$2,212
21702Frederick County47,437$104,659$384,800$1,722
21043Howard County47,134$141,846$607,300$1,964
21224Baltimore city46,949$86,209$281,400$1,782
21921Cecil County45,698$84,608$296,000$1,413
20910Montgomery County45,096$107,994$690,900$1,992
21218Baltimore city44,903$58,378$229,800$1,239
21044Howard County44,775$132,924$541,100$2,096
21229Baltimore city44,687$55,457$184,900$1,210
21221Baltimore County43,536$67,368$266,800$1,305
20706Prince George's County43,225$100,061$408,600$1,797
21042Howard County43,021$190,504$674,700$2,253
21220Baltimore County42,936$79,676$279,900$1,621
21502Allegany County41,810$58,721$151,400$771
21703Frederick County41,766$105,293$364,300$1,887
21701Frederick County41,340$102,306$404,900$1,607
20785Prince George's County40,946$83,690$346,000$1,764
21045Howard County40,866$117,323$438,500$1,768
21157Carroll County40,191$102,835$394,100$1,236
20748Prince George's County40,094$82,160$355,600$1,586
21236Baltimore County39,653$92,130$306,800$1,591
21244Baltimore County39,545$84,849$271,200$1,538
21804Wicomico County39,461$68,882$230,200$1,343
20743Prince George's County39,439$76,332$317,100$1,614
21060Anne Arundel County39,225$99,739$352,800$1,620
21401Anne Arundel County39,118$119,296$580,600$2,106
20877Montgomery County39,068$86,103$462,500$1,862
21093Baltimore County38,895$121,771$466,200$1,581
21208Baltimore County38,108$90,822$313,400$1,672
21113Anne Arundel County38,053$125,081$401,900$2,152
21014Harford County37,976$113,825$407,800$1,571
20735Prince George's County37,926$123,125$401,000$1,915
20747Prince George's County37,924$72,931$325,400$1,635
21784Carroll County37,813$141,228$478,200$1,673
20817Montgomery County37,738$240,104$1,142,300$3,155
21144Anne Arundel County37,372$132,820$468,400$1,958
20901Montgomery County37,338$127,133$571,300$1,785
21075Howard County37,146$133,321$439,400$2,108
20740Prince George's County36,564$81,359$417,100$1,788
20707Prince George's County36,549$104,093$411,200$1,880
20723Howard County36,319$129,870$508,000$1,986
21227Baltimore County35,695$83,620$272,400$1,347
21742Washington County35,114$80,533$280,100$1,267
20782Prince George's County34,646$88,226$431,300$1,789
21225Anne Arundel County34,469$50,069$214,000$1,118
20886Montgomery County34,419$98,767$366,400$1,863
21136Baltimore County33,778$106,559$380,200$1,471
21230Baltimore city33,509$94,164$327,700$1,771
21009Harford County33,444$117,017$335,100$1,680
21212Baltimore city33,425$96,752$357,900$1,328
21771Frederick County32,827$154,844$532,200$2,117
21403Anne Arundel County32,757$115,068$566,900$1,872
20603Charles County32,649$137,138$430,700$2,021
20784Prince George's County32,271$84,599$356,500$1,769
21133Baltimore County31,847$84,248$302,000$1,518
20853Montgomery County31,438$157,168$605,800$1,944
20815Montgomery County31,269$198,243$1,230,700$2,408
21217Baltimore city31,125$37,207$175,900$1,065
21237Baltimore County30,851$90,269$280,400$1,440
20814Montgomery County30,822$150,401$976,500$2,329
21209Baltimore County30,766$87,669$418,800$1,640
21015Harford County30,451$137,219$418,400$1,730
20721Prince George's County30,342$167,689$561,500$2,394
21801Wicomico County30,063$67,140$286,800$1,058
20745Prince George's County29,518$80,649$351,500$1,564
20602Charles County29,425$108,733$360,800$1,803
21239Baltimore city28,635$64,288$191,200$1,337
21146Anne Arundel County28,489$169,835$643,600$1,619
20871Montgomery County28,329$177,120$628,800$2,312
20770Prince George's County28,181$84,125$249,400$1,823
20705Prince George's County28,119$106,691$423,000$1,777
21213Baltimore city27,881$50,031$134,900$1,253
20746Prince George's County27,494$78,391$325,000$1,735
20601Charles County27,340$120,278$380,700$2,154
21216Baltimore city27,296$46,440$148,800$1,160
20653St. Mary's County26,799$97,923$341,900$1,579
20708Prince George's County26,599$83,457$431,500$1,796
20715Prince George's County26,519$139,962$437,600$2,523
20876Montgomery County26,511$113,329$456,500$2,081

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

All 477 ZIP codes

Every ZIP code area in the state, in numeric order.

Reading this Maryland list

What the Maryland numbers actually show.

Maryland is unusually decentralised. No single centre dominates — the ten largest ZIP codes together hold just 10% of the 6,170,363 residents here, and 184 separate entries clear 10,000 people. State-level averages are more representative here than in most states, because there is no outsized core pulling them. Half of these ZIP codes hold more than 4,995 residents, which is a small-town scale: big enough for published estimates, small enough that one employer or one subdivision moves the numbers.

On housing, Maryland tracks the national pattern closely: $401,000 median home value against $104,338 median income, a ratio of 3.8 versus 3.9 nationally. Rent stays modest against earnings — $1,600 a month, roughly 18% of median household income over a year. The statewide midpoint hides real variation, though — that is what the spread below is for.

Incomes fan out sharply inside Maryland. Strip the outliers and the top-decile ZIP code still earns 2.78× the bottom-decile one ($171,875 against $61,934); include them and 20759 tops the list at $250,001 and 20899 anchors the bottom at $23,917. A single "Maryland average" is averaging across two different economies.

About one row in 10 is incomplete — 49 of 477 ZIP codes have a suppressed estimate, almost all of them at the small end. Five-year estimates average responses over sixty months, so what is published is a stable baseline rather than a reading of this month's market.

Questions people ask

Specific to Maryland.

How many ZIP codes does Maryland have? 477 appear in the current federal tabulation. ZIP code tabulation areas are the Census approximation of postal ZIP codes, so the count differs slightly from the number of ZIPs the Postal Service delivers to in Maryland, and PO-box-only ZIPs have no area at all.

Which Maryland row should I compare mine against? Pick ZIP codes within roughly the same population band. In a state this spread out, size drives the housing and income figures more than region does.

How current is this? Every figure comes from the American Community Survey 2019-2023 ACS 5-year release published by the US Census Bureau, ACS 2019-2023 5-year estimates. It reflects the full survey window rather than a single date, and it is the most recent vintage available for ZIP codes this small.

More Maryland data.