Residential delivery area · New York

ZIP Code 11231: Brooklyn, NY

ZIP code 11231 uses the postal name Brooklyn, New York and lies entirely in Kings County (Census 2020 ZIP-county file). About 38,000 people live there (Census Bureau, ACS 2020-2024), the 36th most populous of Brooklyn's 38 residential ZIP codes. Median household income is $139,930 (Census Bureau, ACS 2020-2024). Most of its land (100%) lies in the city of New York.

  • ACS2020-24
  • Census2020
  • FHFA2013
  • ZBP2023
  • IRS2022
1national area: New York, Delaware and Pennsylvania
112sectional center: Brooklyn, NY (SCF 112)
31delivery area within it
Town
Brooklyn · 38 residential ZIPs
Census places
New York
Neighborhoods
Carroll Gardens, Red Hook, Red Hook Houses GeoNames
Metro area
New York-Newark-Jersey City, NY-NJ
House district
NY-10 119th Congress
Time zone
Eastern
Land area
1.4 sq mi · 26,860 people per sq mi
PO Box ZIPs
9 more ZIP codes use the name Brooklyn for PO boxes or single organizations

Where is ZIP code 11231?

11231 centers on 40.678°, -74.005° and covers 1.4 square miles of land plus 0.0 of water. It borders 4 ZIP codes: 11201, 11215, 11217, 11232.

11201 · Brooklyn11215 · Brooklyn11217 · Brooklyn11232 · Brooklyn11231 · Brooklyn (this ZIP)112311121511232112011121711201 · Brooklyn11215 · Brooklyn11217 · Brooklyn11232 · Brooklyn11231 · Brooklyn (this ZIP)112311121511232112011121711201 · Brooklyn11215 · Brooklyn11217 · Brooklyn11232 · Brooklyn11231 · Brooklyn (this ZIP)1123111215112321120111217
Shaded by median household income, in national fifths (ACS 2020-2024); 11231 outlined. Census 2020 ZCTA boundaries. <$54.1k$98.1k+no figure

The map draws ZIP code areas only. For the streets inside 11231, open its center on OpenStreetMap.

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.

How does 11231 compare with the rest of Brooklyn?

Rank of 11231 among the residential ZIP codes of its town, county and state (1 = the most; income and home value among ZIP codes of 1,000+ people living in households)
Measure11231In BrooklynIn NY
People (ACS 2020-2024)38,27636th of 38154th of 1,826
Median household income$140k4th of 38146th of 1,081
Median home value$1.61M3rd of 3714th of 1,172

Its median household income is higher than in 95% of U.S. residential ZIP codes, and it is denser than more than 99% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).

How many people live in 11231?

The 2020 Census counted 37,240 people in 11231; the ACS, which samples households over 2020-2024, estimates 38,276. Between the 2010 and 2020 censuses its population grew 11.7% (its boundary stayed at least 90% the same).

People, ACS 2020-2024
38,276
2020 Census count
37,240+11.7% since 2010 (33,336)
Households
16,783
Median age
38.8

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).

Who lives in 11231?

Of the 38,276 people the ACS estimates in 11231, 21.6% are under 18 and 12.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (59.7%), then Hispanic or Latino (16.9%).

  • Under 1821.6%
  • 18 to 6466.3%
  • 65 and older12.1%
Age of the people of 11231 (ACS 2020-2024, B01001)
  • White, not Hispanic59.7%
  • Hispanic or Latino16.9%
  • Black, not Hispanic9.8%
  • Other or two or more8.6%
  • Asian, not Hispanic5.1%
Race and Hispanic origin in 11231 (ACS 2020-2024, B03002); each person counted once

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.

What do households in 11231 earn?

Median household income is $139,930 (ACS 2020-2024), the 4th highest of the 38 ranked ZIP codes in Brooklyn. It is not measurably different from 2015-2019 ($122,261 in 2024 dollars): the change is within the surveys' margins of error.

Median household income
$139,930
Income per person
$100,202
Below the poverty line
13.1%
Unemployed (of the labor force)
6.7%
Adults 25+ with a bachelor's degree
67.5%
Adjusted gross income per tax return, 2022
$217,15716,900 returns; wages 66% of AGI (IRS)

Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).

What are homes worth in 11231?

Median home value (owners' estimate)
$1,611,200
Median gross rent
$2,431
Homes owned by their occupants
30.5%
Housing units
18,294
0 50 100 150 200 250 20032013 0 50 100 150 200 250 20032013 0 50 100 150 200 250 20032013
Index = 100 in 2003, the first year FHFA reports for 11231; 2013: 264.9. Annual, not seasonally adjusted; FHFA calls its ZIP-level indexes developmental. FHFA's series for 11231 stops in 2013: it publishes no ZIP index for a year with too few repeat sales.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.

What businesses are in 11231?

1,320 business establishments had a location in this ZIP code in 2023, 46 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).

  • Professional, scientific, and technical services212
  • Accommodation and food services169
  • Retail trade141
  • Construction126
  • Other services (except public administration)109
  • Health care and social assistance93

Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).

Which ZIP codes are next to 11231?

ZIP codes that share a boundary with 11231, then the nearest by center
ZIPTownPeopleHousehold incomeDistance
11201Brooklyn70,674$173k1.4 mi
11215Brooklyn70,441$186k1.4 mi
11217Brooklyn43,490$163k1.4 mi
11232Brooklyn27,816$91k1.5 mi
10004New York3,711$250k+1.0 mi (near)
10005New York9,439$190k2.0 mi (near)
10271New York0–2.1 mi (near)
11238Brooklyn58,345$135k2.1 mi (near)

Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.