Borough in Butler County, Pennsylvania · 2.1 sq mi · 1,811 people per sq mi
3,717 people live in Zelienople. The typical household earns $68,110, and the median resident is 41.9 years old.
2026 projection
From 3,912 in 2020
Poverty rate 6.26%
Men 39.6 · Women 44.6
1850–2026
3,717
2026 projection
5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1850–2026
3,717
2026 projection
5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 3,717 | -35 | 0.93% |
|---|---|---|---|
| 2025 | 3,752 | -20 | 0.53% |
| 2024 | 3,772 | -31 | 0.82% |
| 2023 | 3,803 | -20 | 0.52% |
| 2022 | 3,823 | -44 | 1.14% |
| 2021 | 3,867 | -45 | 1.15% |
| 2020 | 3,912 | +7 | 0.18% |
| 2019 | 3,905 | -50 | 1.26% |
| 2018 | 3,955 | +5 | 0.13% |
| 2017 | 3,950 | +14 | 0.36% |
Showing 10 of 33 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Zelienople has a population change lower than Butler County, Pennsylvania, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 38 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
46% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 46% | 55% | 40% |
| Never married | 24% | 26% | 23% |
| Divorced | 18% | 13% | 21% |
| Widowed | 12% | 6% | 17% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources