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ZIP CODE TABULATION AREA

21231

Maryland · 14,969 residents · 0.87 sq mi
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With 14,969 people, ZIP 21231 is a ZIP code in Baltimore. 64% of adults hold a bachelor's degree, against 36% nationally. 34% of homes are owner-occupied. The median age is 32.7, younger than the US median of 38.9. Density works out to 17,265 people per square mile. That is roughly 37% ahead of the Baltimore median. Among the 20 ZIP codes in Baltimore, 21231 ranks 6th by median household income.

$85,254
US average: $82,259
$64,422
US average: $44,673
$350,100
US average: $376,019
64.3%
US average: 35.6%
Land area
0.87 sq mi
Age, sex & households
Under 18
13.5%
Age 65+
9.2%
48.5%
51.5%
1.83 people
Race & ethnicity · 2024
2024
White, non-Hispanic55.6%(8,327)
Black26.5%(3,969)
Hispanic / Latino7.3%(1,096)
Asian5.3%(794)
Other5.2%(783)
76
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
4.1
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Baltimore
Income rank vs other ZIPs
LOWEST6TH OF 20HIGHEST
Adjacent ZIPs
21201$45,640
21202$59,377
21205$43,176
21206$64,531
Frequently asked

How many people live in ZIP code 21231?

ZIP code 21231 has about 14,969 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21231?

The typical household in ZIP code 21231 earns about $85,254 a year. Half of households make more than that, and half make less.

Is ZIP code 21231 expensive?

In ZIP code 21231, the median home is worth about $350,100, and the typical rent is about $1,796 a month.

How educated are people in ZIP code 21231?

About 64.3% of adults age 25 and over in ZIP code 21231 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21231?

About 20.6% of people in ZIP code 21231 live below the federal poverty line.

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