City in Island County, Washington · 9.7 sq mi · 2,481 people per sq mi
23,947 people live in Oak Harbor. The typical household earns $76,084, and the median resident is 31.5 years old.
2026 projection
From 24,622 in 2020
Poverty rate 8.27%
Men 31 · Women 32
1920–2026
23,947
2026 projection
2.7% 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.
1920–2026
23,947
2026 projection
2.7% 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 | 23,947 | -136 | 0.56% |
|---|---|---|---|
| 2025 | 24,083 | 0 | 0.00% |
| 2024 | 24,083 | +49 | 0.20% |
| 2023 | 24,034 | -246 | 1.01% |
| 2022 | 24,280 | -397 | 1.61% |
| 2021 | 24,677 | +55 | 0.22% |
| 2020 | 24,622 | +127 | 0.52% |
| 2019 | 24,495 | +289 | 1.19% |
| 2018 | 24,206 | +268 | 1.12% |
| 2017 | 23,938 | +418 | 1.78% |
Showing 10 of 26 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.
Oak Harbor has a population change lower than Island County, Washington, 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 244 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 12 residents
59% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 59% | 63% | 55% |
| Never married | 24% | 26% | 22% |
| Divorced | 10% | 7% | 13% |
| Widowed | 5% | 2% | 8% |
| Separated | 2% | 2% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources