Borough in Allegheny County, Pennsylvania · 16.6 sq mi · 742 people per sq mi
About 12,000 people live in Jefferson Hills. The typical household earns $116,064, and the median resident is 42.9 years old.
2026 projection
From 12,429 in 2020
Poverty rate 2.77%
Men 42.3 · Women 43.6
1930–2026
12,312
2026 projection
0.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1930–2026
12,312
2026 projection
0.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 12,312 | -45 | 0.36% |
|---|---|---|---|
| 2025 | 12,357 | +106 | 0.87% |
| 2024 | 12,251 | +30 | 0.25% |
| 2023 | 12,221 | -83 | 0.67% |
| 2022 | 12,304 | -93 | 0.75% |
| 2021 | 12,397 | -32 | 0.26% |
| 2020 | 12,429 | +1,323 | 11.91% |
| 2019 | 11,106 | -31 | 0.28% |
| 2018 | 11,137 | -62 | 0.55% |
| 2017 | 11,199 | -76 | 0.67% |
Showing 10 of 25 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 123 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 36 residents
59% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 59% | 63% | 55% |
| Never married | 27% | 29% | 26% |
| Divorced | 8% | 6% | 10% |
| Widowed | 5% | 1% | 9% |
| Separated | 1% | 1% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau