Olean Population

2010–2026

121

2026 projection

2.5% since 2020 (increase)

020406080100120140201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

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Population by year

Population estimates for Olean. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202612100.00%
202512100.00%
202412100.00%
202312100.00%
2022121+21.68%
2021119+10.85%
2020118-75.60%
2019125+21.63%
201812300.00%
2017123+10.82%

Showing 10 of 17 years.

Olean Demographics

26.9median age

Median age

Female26.3 yrs
Male34.1 yrs

Adults

108
16 seniors · 15%92 other adults

Sex

Female 58.9% · 99Male 41.1% · 69

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 2 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

Olean Marital Status

66% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married66%54%76%
Never married9%10%9%
Divorced15%18%12%
Widowed10%18%3%
Separated0%0%0%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201