Gambrills, MD ZIP Codes

3 ZIP codes serve Gambrills, Maryland: 21144, 21108 and 21054. Together they are home to 72,147 residents in 25,164 households. That is more than the 2,830 people counted inside Gambrills Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $136,684 in 21144 to $163,825 in 21054.

Gambrills Census-designated place

MeasureCensus figure
Residents2,830
Households947
Median household income$148,594
Median home value$584,800
Median age42.7
Median rent$2,076

All 3 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)72,147
Households (sum of ZIP codes)25,164
Median household income, range across ZIP codes$136,684 (21144) to $163,825 (21054)
Household-weighted average of ZIP medians (an approximation, not a true median)$146,481
Homeowners83.3%
Households with kids under 1837.2%
Moved in the past year9.6%
Carrier routes in EDDM2GO's route library45 routes, 26,426 homes (3 of 3 ZIP codes)

Top facts

Every ZIP code in Gambrills

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
21144Severn37,11813,019$136,684$483,70080.3%35.4%9.9%2213,96925% of its land
21108Millersville18,6436,648$151,324$555,00088.5%36.0%9.8%147,73622% of its land
21054Gambrills16,3865,497$163,825$611,00084.2%42.8%8.8%95,890mailing city

A ZIP code is listed for Gambrills when at least 10% of its land lies inside the Gambrills Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Gambrills. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Gambrills.

Counties

Nearby cities sharing these ZIP codes

Price a mailing to Gambrills ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Gambrills, MD?
21144, 21108 and 21054. A ZIP code is listed for Gambrills when at least 10% of its land lies inside the Gambrills Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Gambrills.
What is the population of Gambrills, MD?
The Census Bureau counts 2,830 residents inside Gambrills Census-designated place (ACS 2020–2024). The 3 ZIP codes that serve Gambrills hold 72,147 residents in all.
What is the median household income in Gambrills, MD?
$148,594 inside Gambrills Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $136,684 to $163,825.
Which Gambrills ZIP code has the highest median household income?
21054, at $163,825, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Gambrills, MD?
For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 45 carrier routes reaching 26,426 residential and 1,169 business mailboxes.

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