Howard County, MD ZIP Codes

24 ZIP codes cover all or part of Howard County, Maryland. The Census Bureau counts 336,328 residents in the county, with a median household income of $149,763 and a median home value of $597,900. Median household income ranges from $76,842 in 20763 to $250,000+ in 20759. Its largest communities include Columbia, Ellicott City, Severn, Catonsville and Eldersburg.

Howard County (Census county figures)

MeasureCensus figure
Residents336,328
Households121,065
Median household income$149,763
Median home value$597,900
Median age39.8
Median rent$2,099

All 24 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)439,608
Households (sum of ZIP codes)156,335
Median household income, range across ZIP codes$76,842 (20763) to $250,000+ (20759)
Household-weighted average of ZIP medians (an approximation, not a true median)$150,970
Homeowners74.1%
Households with kids under 1836.2%
Moved in the past year11.2%
Carrier routes in EDDM2GO's route library285 routes, 167,066 homes (24 of 24 ZIP codes)

Top facts

Every ZIP code in Howard County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
21043Ellicott City48,52517,568$148,125$620,90066.9%39.4%12.0%2819,73497% of its land
21044Columbia44,11418,293$135,057$566,50060.3%26.1%13.0%3021,235100% of its land
21042Ellicott City43,32715,099$190,061$706,40084.7%40.2%8.9%2916,954100% of its land
21045Columbia40,03415,414$118,563$453,70068.3%31.4%12.3%2516,589100% of its land
21784Sykesville39,25813,416$139,395$491,80087.3%40.7%5.6%2615,79518% of its land
21075Elkridge37,36313,038$135,303$455,30064.1%42.7%17.0%2014,609100% of its land
20723Laurel36,86612,497$138,113$525,40068.9%36.2%10.4%1913,548100% of its land
21771Mount Airy33,03111,226$157,302$556,20094.0%35.1%9.7%2011,60018% of its land
21076Hanover24,2689,785$146,869$513,30065.8%27.8%11.7%1812,45310% of its land
20794Jessup16,8143,928$116,406$426,10062.1%44.9%20.7%85,27866% of its land
21046Columbia15,6086,165$127,813$479,50065.1%31.3%12.1%147,392100% of its land
21029Clarksville13,6074,056$243,542$912,10093.6%51.4%8.8%104,321100% of its land
21797Woodbine8,6432,849$189,241$735,60091.7%36.9%5.4%73,40967% of its land
21163Woodstock7,5392,680$134,672$602,80085.0%32.4%8.1%52,83927% of its land
20759Fulton6,6241,993$250,000+$954,70096.1%53.2%12.8%42,578100% of its land
21104Marriottsville6,0522,097$191,804$680,20097.0%34.6%8.3%62,40853% of its land
21738Glenwood3,6961,121$250,000+$914,30098.2%44.2%10.5%31,141100% of its land
20777Highland3,2211,097$226,146$861,90095.3%39.9%3.8%31,22998% of its land
20763Savage2,6011,142$76,842$419,20041.2%31.9%14.3%21,175100% of its land
21036Dayton2,569882$218,036$881,30099.3%35.7%8.2%2804100% of its land
21737Glenelg2,474739$250,000+$996,40093.2%40.9%4.1%2655100% of its land
21794West Friendship2,192660$231,466$999,40099.5%41.4%6.3%2836100% of its land
21723Cooksville669232$241,250$1,005,50095.3%41.8%19.9%1339100% of its land
20701Annapolis Junction513358$85,594—0.0%0.0%26.9%165054% of its land

A ZIP code is listed for Howard County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

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Frequently asked questions

What ZIP codes are in Howard County, MD?
21043, 21044, 21042, 21045, 21784, 21075, 20723, 21771, 21076, 20794, 21046, 21029, 21797, 21163, 20759, 21104, 21738, 20777, 20763, 21036, 21737, 21794, 21723 and 20701. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Howard County?
336,328 residents in 121,065 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Howard County?
$149,763 for the county as a whole. Its ZIP codes range from $76,842 (20763) to $250,000+ (20759).
Which Howard County ZIP code has the highest median household income?
20759, at $250,000+, among ZIP codes with at least 1,000 residents. See the full ranking of Howard County ZIP codes by income.
How many carrier routes and mailboxes are in Howard County?
For the 24 of 24 ZIP codes in EDDM2GO's stored route library: 285 carrier routes reaching 167,066 residential and 10,491 business mailboxes.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.