Township in Allegheny County, Pennsylvania · 20.3 sq mi · 924 people per sq mi
About 19,000 people live in South Fayette township. The typical household earns $124,112, and the median resident is 41.3 years old.
2026 projection
From 18,349 in 2020
Poverty rate 3.63%
Men 41 · Women 41.7
2010–2026
18,766
2026 projection
2.3% since 2020 (increase)
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.
2010–2026
18,766
2026 projection
2.3% since 2020 (increase)
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 | 18,766 | +118 | 0.63% |
|---|---|---|---|
| 2025 | 18,648 | +118 | 0.64% |
| 2024 | 18,530 | +26 | 0.14% |
| 2023 | 18,504 | +52 | 0.28% |
| 2022 | 18,452 | +5 | 0.03% |
| 2021 | 18,447 | +98 | 0.53% |
| 2020 | 18,349 | +2,407 | 15.10% |
| 2019 | 15,942 | +228 | 1.45% |
| 2018 | 15,714 | +163 | 1.05% |
| 2017 | 15,551 | +80 | 0.52% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 185 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 28 residents
60% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 60% | 63% | 57% |
| Never married | 26% | 28% | 24% |
| Divorced | 9% | 7% | 11% |
| Widowed | 5% | 1% | 8% |
| Separated | <1% | <1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau