ZIP Code 15321 - Cecil Pennsylvania
Overview
ZIP Code 15321 is located in Cecil Pennsylvania. Portions of 15321 are also in Cecil-Bishop and Cecil Township and South Fayette Township. 15321 is entirely within Washington County. Regionally, 15321 is located in Metro Pittsburgh.
ZIP Code 15321 Quick Stats
| ZIP Code Name | Cecil |
| Primary County | Washington County |
| ZIP Code Type | Standard |
| Population (2022) | 1,949 |
| Area Code(s) | 412 / 724 / 878 / 878 |
| Current Time | EDT |
ZIP Code 15321 Map
15321 Demographics
15321 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Pennsylvania based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 15321 is White. The current unemployment level in 15321 is 4.1%.
| Population | 1,949 |
| Population Growth Rate | 27.77% |
| Population Density | 1,874 People per Square Mile |
| Total Households | 613 |
| Median Household Income (2021) | $105,552 |
| Average Adjusted Gross Income (2021) | $335,750 |
| Current Unemployment Rate (May 2026) | 4.1% |
| Sales Tax Rate (2025) | 7% |
| Majority Race/Ethnicity | White - 99.72% |
15321 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 1,779 | 99.05% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 5 | 0.28% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 12 | 0.67% |
15321 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 78 | 7.58% |
| Bachelor Degree | 298 | 28.96% |
| High School Diploma | 336 | 32.65% |
| No High School Diploma | 10 | 0.97% |
| GED or Alternate | 7 | 0.68% |
| 1 or More Years of College | 131 | 12.73% |
| Associates Degree | 98 | 9.52% |
| Masters Degree | 56 | 5.44% |
| Professional Degree | 15 | 1.46% |
| Doctorate Degree | 0 | 0% |
15321 Geography
| Coordinates | 40.32318878, -80.19010925 |
| Adjacent ZIP Codes | |
| Cities/Towns in 15321 | |
| Region | Metro Pittsburgh |
| Metropolitan/Micropolitan Stat Area | Pittsburgh, PA |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 1 Square Miles |
15321 Schools
| School Districts in 15321 | |
| Elementary Schools in 15321 | |
| Middle Schools in 15321 | |
| High Schools in 15321 |
15321 Weather and Climate Data
| Plant Hardiness Zone | Zone 6a: -10F to -5F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 70b - Monongahela Transition Zone | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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