City in Cattaraugus County, New York · 5.9 sq mi · 2,276 people per sq mi
13,425 people live in Olean. The typical household earns $51,261, and the median resident is 39 years old.
2026 projection
From 13,937 in 2020
Poverty rate 26.66%
Men 37.5 · Women 42.6
1870–2026
13,425
2026 projection
3.7% 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.
1870–2026
13,425
2026 projection
3.7% 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 | 13,425 | -83 | 0.61% |
|---|---|---|---|
| 2025 | 13,508 | -64 | 0.47% |
| 2024 | 13,572 | -65 | 0.48% |
| 2023 | 13,637 | -35 | 0.26% |
| 2022 | 13,672 | -113 | 0.82% |
| 2021 | 13,785 | -152 | 1.09% |
| 2020 | 13,937 | -5 | 0.04% |
| 2019 | 13,942 | -68 | 0.49% |
| 2018 | 14,010 | -57 | 0.41% |
| 2017 | 14,067 | -58 | 0.41% |
Showing 10 of 31 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.
Olean has a population change lower than Cattaraugus County, New York, 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 137 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 4 residents
37% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 37% | 40% | 34% |
| Never married | 38% | 45% | 32% |
| Divorced | 13% | 11% | 14% |
| Widowed | 10% | 2% | 16% |
| Separated | 3% | 3% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources