Township in Westmoreland County, Pennsylvania · 30.3 sq mi · 40 people per sq mi
About 1,200 people live in Irwin township. The typical household earns $69,231, and the median resident is 47.6 years old.
2026 projection
From 1,252 in 2020
Poverty rate 6.18%
Men 49.4 · Women 46.6
2010–2026
1,226
2026 projection
2.1% 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.
2010–2026
1,226
2026 projection
2.1% 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 | 1,226 | -2 | 0.16% |
|---|---|---|---|
| 2025 | 1,228 | -2 | 0.16% |
| 2024 | 1,230 | -1 | 0.08% |
| 2023 | 1,231 | -3 | 0.24% |
| 2022 | 1,234 | -10 | 0.80% |
| 2021 | 1,244 | -8 | 0.64% |
| 2020 | 1,252 | -6 | 0.48% |
| 2019 | 1,258 | -11 | 0.87% |
| 2018 | 1,269 | -14 | 1.09% |
| 2017 | 1,283 | -20 | 1.53% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 13 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 16 residents
62% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 62% | 61% | 63% |
| Never married | 23% | 24% | 23% |
| Divorced | 8% | 11% | 5% |
| Widowed | 7% | 4% | 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