County in Illinois · 563 sq mi · 24 people per sq mi
13,549 people live in Washington County. The typical household earns $78,224, and the median resident is 44.2 years old.
2026 projection
From 13,729 in 2020
Poverty rate 7.53%
Men 43.1 · Women 45.4
1820–2026
13,549
2026 projection
1.3% since 2020 (decrease)
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.
1820–2026
13,549
2026 projection
1.3% since 2020 (decrease)
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 | 13,549 | -15 | 0.11% |
|---|---|---|---|
| 2025 | 13,564 | -15 | 0.11% |
| 2024 | 13,579 | +5 | 0.04% |
| 2023 | 13,574 | -77 | 0.56% |
| 2022 | 13,651 | -3 | 0.02% |
| 2021 | 13,654 | -75 | 0.55% |
| 2020 | 13,729 | -197 | 1.41% |
| 2019 | 13,926 | -84 | 0.60% |
| 2018 | 14,010 | +50 | 0.36% |
| 2017 | 13,960 | -216 | 1.52% |
Showing 10 of 35 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 136 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 13 residents
55% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 55% | 56% | 55% |
| Never married | 26% | 31% | 21% |
| Divorced | 11% | 10% | 11% |
| Widowed | 7% | 3% | 11% |
| Separated | 1% | <1% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
8 sources, all from the U.S. Census Bureau