Residential delivery area · Pennsylvania
ZIP Code 15143: Sewickley, PA
ZIP code 15143 uses the postal name Sewickley, Pennsylvania and lies mostly in Allegheny County (90% of its land) with the rest in Beaver County (Census 2020 ZIP-county file). About 22,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $132,674 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Franklin Park (22%), Sewickley Heights (20%), Bell Acres (14%), Economy (10%), Sewickley Hills (7%), Edgeworth (4%), Sewickley (3%), Glenfield (2%), Glen Osborne (1%) and Haysville (under 1%); 17% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sewickley · its only residential ZIP
- County
- Allegheny County (90%); Beaver County (10%)
- Census places
- Franklin Park (22%); Sewickley Heights (20%); Bell Acres (14%); Economy (10%)
- Metro area
- Pittsburgh, PA
- House district
- PA-17 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 36.9 sq mi · 592 people per sq mi
Where is ZIP code 15143?
15143 centers on 40.568°, -80.147° and covers 36.9 square miles of land plus 0.7 of water. It borders 8 ZIP codes: 15056, 15046, 15003, 15225, 15108, 15237, 15005, 15090.
The map draws ZIP code areas only. For the streets inside 15143, 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 15143 compare with the rest of Allegheny County?
| Measure | 15143 | In Allegheny County | In PA |
|---|---|---|---|
| People (ACS 2020-2024) | 21,851 | 22nd of 117 | 180th of 1,833 |
| Median household income | $133k | 6th of 89 | 59th of 1,015 |
| Median home value | $455k | 8th of 90 | 83rd of 1,069 |
Its median household income is higher than in 94% of U.S. residential ZIP codes, and it is denser than 74% 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 15143?
The 2020 Census counted 22,329 people in 15143; the ACS, which samples households over 2020-2024, estimates 21,851. Between the 2010 and 2020 censuses its population grew 13.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 21,851
- 2020 Census count
- 22,329+13.6% since 2010 (19,660)
- Households
- 8,708
- Median age
- 47.0
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 15143?
Of the 21,851 people the ACS estimates in 15143, 21.8% are under 18 and 23.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (83.3%).
- Under 1821.8%
- 18 to 6455.0%
- 65 and older23.1%
- White, not Hispanic83.3%
- Asian, not Hispanic7.8%
- Other or two or more4.5%
- Black, not Hispanic2.4%
- Hispanic or Latino2.0%
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 15143 earn?
Median household income is $132,674 (ACS 2020-2024), the 6th highest of the 89 ranked ZIP codes in Allegheny County. It is not measurably different from 2015-2019 ($120,181 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $132,674
- Income per person
- $77,913
- Below the poverty line
- 4.1%
- Unemployed (of the labor force)
- 5.2%
- Adults 25+ with a bachelor's degree
- 62.9%
- Adjusted gross income per tax return, 2022
- $286,14710,970 returns; wages 54% 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 15143?
FHFA's house price index for 15143, built from repeat sales and appraisals of the same homes, rose 83% from 2015 to 2025 and rose 48% from 2020 to 2025, and moved +9.0% in 2025.
- Median home value (owners' estimate)
- $454,900
- Median gross rent
- $1,272
- Homes owned by their occupants
- 81.6%
- Housing units
- 9,537
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 15143?
763 business establishments had a location in this ZIP code in 2023, 38 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services130
- Health care and social assistance105
- Finance and insurance104
- Other services (except public administration)69
- Retail trade57
- Construction52
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 15143?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 15056 | Leetsdale | 1,041 | $67k | 3.6 mi |
| 15046 | Crescent | 2,141 | $82k | 4.4 mi |
| 15003 | Ambridge | 11,387 | $60k | 4.4 mi |
| 15225 | Pittsburgh | 1,085 | $61k | 4.6 mi |
| 15108 | Coraopolis | 42,799 | $101k | 5.5 mi |
| 15237 | Pittsburgh | 43,588 | $110k | 5.5 mi |
| 15005 | Baden | 9,570 | $73k | 5.6 mi |
| 15090 | Wexford | 25,763 | $161k | 5.7 mi |
| 15081 | South Heights | 404 | $54k | 4.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.