Residential delivery area · Pennsylvania
ZIP Code 15321: Cecil-Bishop (Cecil), PA
ZIP code 15321 is in Cecil-Bishop (postal name Cecil), Pennsylvania, mostly in Washington County (86% of its land) with the rest in Allegheny County (Census 2020 ZIP-county file). About 2,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $117,656 (Census Bureau, ACS 2020-2024). By Census place, 81% of its land lies in Cecil-Bishop (a census-designated place); 19% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Cecil · its only residential ZIP
- County
- Washington County (86%); Allegheny County (14%)
- Census places
- Cecil-Bishop census-designated place
- Metro area
- Pittsburgh, PA
- House districts
- PA-14 (86%), PA-17 (14%) 119th Congress, by share of land
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 1.9 sq mi · 1,061 people per sq mi
Where is ZIP code 15321?
15321 centers on 40.322°, -80.187° and covers 1.9 square miles of land. It borders 3 ZIP codes: 15317, 15017, 15057.
The map draws ZIP code areas only. For the streets inside 15321, 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 15321 compare with the rest of Washington County?
| Measure | 15321 | In Washington County | In PA |
|---|---|---|---|
| People (ACS 2020-2024) | 2,025 | 22nd of 61 | 946th of 1,833 |
| Median household income | $118k | not ranked | not ranked |
| Median home value | $349k | 6th of 27 | 173rd of 1,069 |
15321's median household income is not ranked: its 90% margin of error (±$43,489) is more than a quarter of the figure ($117,656). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 79% of 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 15321?
The 2020 Census counted 1,792 people in 15321; the ACS, which samples households over 2020-2024, estimates 2,025. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 2,025±510 (90% margin)
- 2020 Census count
- 1,792
- Households
- 760
- Median age
- 29.5
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 15321?
Of the 2,025 people the ACS estimates in 15321, 24.6% are under 18 and 14.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.2%).
- Under 1824.6%
- 18 to 6460.9%
- 65 and older14.5%
- White, not Hispanic90.2%
- Other or two or more5.8%
- Hispanic or Latino2.6%
- Asian, not Hispanic1.5%
- Black, not Hispanic0.0%
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 15321 earn?
Median household income is $117,656 (ACS 2020-2024).
- Median household income
- $117,656±$43,489
- Income per person
- $54,240
- Below the poverty line
- 3.5%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 54.2%
- Adjusted gross income per tax return, 2022
- $80,743940 returns; wages 72% 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 15321?
FHFA's house price index for 15321, built from repeat sales and appraisals of the same homes, rose 41% from 2015 to 2025 and rose 18% from 2020 to 2025.
- Median home value (owners' estimate)
- $348,700
- Median gross rent
- $1,465
- Homes owned by their occupants
- 75.8%
- Housing units
- 916
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 15321?
45 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction14
- Other services (except public administration)8
- Accommodation and food services5
- Health care and social assistance4
- Administrative and support and waste management and remediation services3
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 15321?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 15317 | Canonsburg | 43,871 | $108k | 3.2 mi |
| 15017 | Bridgeville | 17,782 | $87k | 3.4 mi |
| 15057 | McDonald | 16,583 | $121k | 3.9 mi |
| 15350 | Muse | 373 | $58k | 2.1 mi (near) |
| 15031 | Cuddy | 382 | $35k | 2.2 mi (near) |
| 15064 | Morgan | 360 | – | 3.1 mi (near) |
| 15055 | Lawrence | 1,403 | $72k | 3.5 mi (near) |
| 15361 | Southview | 107 | – | 4.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.