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ZIP code

21231

Baltimore, MD

STANDARD

21231 covers Baltimore in Baltimore city, with 14,556 people in the ACS 2023 estimate.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

ACS 2023 population

14,556

Median household income

$85,382

Median home value

$336,500

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 21231. Methodology

ZIP code map of 21231

Census ZCTA boundary for ZIP 21231 in Baltimore, Maryland
Census ZCTA boundary for ZIP 21231 in Baltimore, Maryland. A ZCTA is not the same as a USPS ZIP code. Boundaries: U.S. Census Bureau. Methodology · Data sources
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About ZIP code 21231

Type

STANDARD

City

Baltimore

County

Baltimore city

Timezone

America/New_York

Area codes

410, 443, 667

Land area

0.9 sq mi

Water area

0.08 sq mi

Households

9,342

Median gross rent

$1,710

More enterprise fields

Timezone
America/New_York
Area Codes
410, 443, 667
World Region
NA
Country
US

Commercial ZIP directory · not ACS

Commercial ZIP directory population_count for ZCTA 21231. Not ACS. Methodology

People in 21231

Race

  • White9,192
  • Black or African American3,997
  • American Indian or Alaska Native100
  • Asian1,104
  • Native Hawaiian and Pacific Islander4
  • Other race1,166
  • Two or more races1,499

Hispanic or Latino (any race): 2,252

Age

  • Under 101,458
  • 10 to 191,138
  • 20 to 294,689
  • 30 to 394,395
  • 40 to 491,718
  • 50 to 591,538
  • 60 to 691,276
  • 70 to 79649
  • 80 and older201

Income and housing in 21231

Poverty rate

19.9%

Median earnings

$67,289

Median household income

$85,382

Median home value

$336,500

Median gross rent

$1,710

Education

  • High school graduate94.5%
  • Bachelor's degree65.9%
  • Graduate degree31.1%

Places covering 21231

Cities and places — Population overlap

Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Counties — Population overlap

Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Population history for 21231

IRS populationACS population
18,5209,260020052023

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
20059,111
20069,545
200711,126
200810,902
200911,724
201012,841
201116,41512,919
201216,36712,680
201316,80113,390
201417,14813,320
201517,04713,110
201616,54512,340
201716,72912,130
201816,16012,010
201915,85411,880
202015,90611,740
202115,74611,320
202214,78011,510
202314,556

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 21231

12 nearest ZIP centroids (any distance)

  1. 21233Baltimore0.7 miPop 0 · Income —
  2. 21287Baltimore0.8 miPop 0 · Income —
  3. 21202Baltimore1.0 miPop 21,506 · Income $61,578
  4. 21201Baltimore1.7 miPop 17,819 · Income $44,722
  5. 21205Baltimore1.8 miPop 13,665 · Income $38,723
  6. 21213Baltimore2.0 miPop 27,881 · Income $50,031
  7. 21230Baltimore2.3 miPop 33,509 · Income $94,164
  8. 21217Baltimore2.8 miPop 31,125 · Income $37,207
  9. 21224Baltimore2.8 miPop 46,949 · Income $86,209
  10. 21218Baltimore2.9 miPop 44,903 · Income $58,378
  11. 21223Baltimore3.3 miPop 19,793 · Income $41,828
  12. 21211Baltimore3.8 miPop 15,481 · Income $81,467

ZIP centroids within 2 miles

ZIP centroids within 2 miles of 21231, measured by Census internal point.
ZIPCityStateDistance (miles)ACS populationMedian income
21233BaltimoreMD0.7 mi0—
21287BaltimoreMD0.8 mi0—
21202BaltimoreMD1.0 mi21,506$61,578
21201BaltimoreMD1.7 mi17,819$44,722
21205BaltimoreMD1.8 mi13,665$38,723
21213BaltimoreMD2.0 mi27,881$50,031

ZIPs within 2 miles of this place

Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.

21231 Baltimore, MD

Looking up ZIP codes within 2 miles of 21231 Baltimore, MD, measured by centroid distance.

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ACS population

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Households

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Avg median income

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Avg median home

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Selected ZIP codes

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ZIP code 21231 FAQ

What city is ZIP code 21231 in?
21231 is in Baltimore, MD.
What county is 21231 in?
21231 is in Baltimore city.
What is the median household income in 21231?
The median household income in 21231 is $85,382.
Which ZIP codes are near 21231?
Use the radius tool on this page to list ZIP codes within a chosen distance of 21231.