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ZIP CODE TABULATION AREA

21740

Maryland · 64,792 residents · 70.9 sq mi
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ZIP 21740 is home to 64,792 people in Washington County. Four-year degrees are less common here than nationally, at 21% of adults. 55% of homes are owner-occupied. Households here earn about 19% less than in Washington County as a whole. The typical home is worth $262,300. 17.3% of residents live below the federal poverty line. Among the 14 ZIP codes in Washington County, 21740 ranks 11th by median household income.

$62,873
US average: $82,259
$33,461
US average: $44,673
$262,300
US average: $376,019
20.7%
US average: 35.6%
Land area
70.9 sq mi
Age, sex & households
Under 18
22.8%
Age 65+
16.3%
49.7%
50.3%
2.41 people
Race & ethnicity · 2024
2024
White, non-Hispanic61.2%(39,656)
Black18%(11,690)
Hispanic / Latino11.6%(7,497)
Asian1.8%(1,172)
Other7.4%(4,777)
72
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
4.2
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Washington County
Income rank vs other ZIPs
LOWEST11TH OF 14HIGHEST
Adjacent ZIPs
21711$91,250
21713$96,199
21719$65,809
Frequently asked

How many people live in ZIP code 21740?

ZIP code 21740 has about 64,792 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21740?

The typical household in ZIP code 21740 earns about $62,873 a year. Half of households make more than that, and half make less.

Is ZIP code 21740 expensive?

In ZIP code 21740, the median home is worth about $262,300, and the typical rent is about $1,080 a month.

How educated are people in ZIP code 21740?

About 20.7% of adults age 25 and over in ZIP code 21740 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21740?

About 17.3% of people in ZIP code 21740 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024