County in Washington · 869 sq mi · 5 people per sq mi
4,236 people live in Columbia County. The typical household earns $71,810, and the median resident is 49.6 years old.
2026 projection
From 3,954 in 2020
Poverty rate 9.31%
Men 44.9 · Women 52.4
1880–2026
4,236
2026 projection
7.1% since 2020 (increase)
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.
1880–2026
4,236
2026 projection
7.1% since 2020 (increase)
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 | 4,236 | +95 | 2.29% |
|---|---|---|---|
| 2025 | 4,141 | +95 | 2.35% |
| 2024 | 4,046 | -18 | 0.44% |
| 2023 | 4,064 | +43 | 1.07% |
| 2022 | 4,021 | 0 | 0.00% |
| 2021 | 4,021 | +67 | 1.69% |
| 2020 | 3,954 | -69 | 1.72% |
| 2019 | 4,023 | -32 | 0.79% |
| 2018 | 4,055 | +45 | 1.12% |
| 2017 | 4,010 | +27 | 0.68% |
Showing 10 of 29 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 40 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 11 residents
54% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 54% | 59% | 50% |
| Never married | 25% | 27% | 24% |
| Divorced | 11% | 11% | 10% |
| Widowed | 8% | 3% | 13% |
| Separated | 2% | 0% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
8 sources, all from the U.S. Census Bureau