Residential delivery area · New York
ZIP Code 10604: West Harrison, NY
ZIP code 10604 uses the postal name West Harrison, New York and lies entirely in Westchester County (Census 2020 ZIP-county file). About 13,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $117,014 (Census Bureau, ACS 2020-2024). Most of its land (54%) lies in the city of Harrison.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- West Harrison · its only residential ZIP
- County
- Westchester County
- Census places
- Harrison (54%); White Plains (23%); Rye Brook (5%)
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House districts
- NY-16 (83%), NY-17 (17%) 119th Congress, by share of land
- State
- New York
- Time zone
- Eastern
- Land area
- 6.8 sq mi · 1,854 people per sq mi
Where is ZIP code 10604?
10604 centers on 41.072°, -73.747° and covers 6.8 square miles of land plus 1.3 of water. It borders 8 ZIP codes: 10595, 10603, 10601, 10577, 10605, 10504, 06831, 10573.
The map draws ZIP code areas only. For the streets inside 10604, 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).
How does 10604 compare with the rest of Westchester County?
| Measure | 10604 | In Westchester County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 12,517 | 32nd of 77 | 459th of 1,826 |
| Median household income | $117k | 44th of 61 | 256th of 1,081 |
| Median home value | $736k | 26th of 65 | 165th of 1,172 |
Its median household income is higher than in 89% of U.S. residential ZIP codes, and it is denser than 84% 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 10604?
The 2020 Census counted 11,526 people in 10604; the ACS, which samples households over 2020-2024, estimates 12,517. Between the 2010 and 2020 censuses its population grew 2.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 12,517±1,297 (90% margin)
- 2020 Census count
- 11,526+2.5% since 2010 (11,250)
- Households
- 4,517
- Median age
- 39.9
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 10604?
Of the 12,517 people the ACS estimates in 10604, 25.9% are under 18 and 13.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (57.7%), then Hispanic or Latino (27.8%).
- Under 1825.9%
- 18 to 6460.2%
- 65 and older13.9%
- White, not Hispanic57.7%
- Hispanic or Latino27.8%
- Other or two or more6.4%
- Black, not Hispanic4.6%
- Asian, not Hispanic3.5%
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 10604 earn?
Median household income is $117,014 (ACS 2020-2024), the 44th highest of the 61 ranked ZIP codes in Westchester County. It is not measurably different from 2015-2019 ($124,549 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $117,014±$19,120
- Income per person
- $73,387
- Below the poverty line
- 5.3%
- Unemployed (of the labor force)
- 5.4%
- Adults 25+ with a bachelor's degree
- 51.1%
- Adjusted gross income per tax return, 2022
- $181,3576,220 returns; wages 61% 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 10604?
FHFA's house price index for 10604, built from repeat sales and appraisals of the same homes, rose 52% from 2015 to 2025 and rose 35% from 2020 to 2025, and moved +9.3% in 2025.
- Median home value (owners' estimate)
- $735,700
- Median gross rent
- $2,245
- Homes owned by their occupants
- 48.9%
- Housing units
- 4,751
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 10604?
624 business establishments had a location in this ZIP code in 2023, 15 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services115
- Administrative and support and waste management and remediation services73
- Health care and social assistance62
- Finance and insurance58
- Real estate and rental and leasing53
- Transportation and warehousing48
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 10604?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 10595 | Valhalla | 7,243 | $123k | 2.1 mi |
| 10603 | White Plains | 18,910 | $121k | 2.1 mi |
| 10601 | White Plains | 11,930 | $86k | 2.8 mi |
| 10577 | Purchase | 5,945 | $250k+ | 3.0 mi |
| 10605 | White Plains | 19,493 | $149k | 4.2 mi |
| 10504 | Armonk | 7,665 | $250k+ | 4.4 mi |
| 06831 | Greenwich, CT | 15,210 | $227k | 4.7 mi |
| 10573 | Port Chester | 40,786 | $106k | 5.3 mi |
| 10594 | Thornwood | 5,110 | $164k | 3.3 mi (near) |
| 10532 | Hawthorne | 5,347 | $141k | 3.4 mi (near) |
| 10606 | White Plains | 17,341 | $112k | 3.8 mi (near) |
| 10523 | Elmsford | 9,450 | $118k | 3.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.