City in Iowa County, Iowa · 3.4 sq mi · 1,014 people per sq mi
About 3,400 people live in Williamsburg. The typical household earns $58,059, and the median resident is 33.8 years old.
2026 projection
From 3,355 in 2020
Poverty rate 5.76%
Men 31.8 · Women 38.9
1890–2026
3,416
2026 projection
1.8% 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.
1890–2026
3,416
2026 projection
1.8% 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 | 3,416 | +8 | 0.23% |
|---|---|---|---|
| 2025 | 3,408 | +21 | 0.62% |
| 2024 | 3,387 | +26 | 0.77% |
| 2023 | 3,361 | -4 | 0.12% |
| 2022 | 3,365 | 0 | 0.00% |
| 2021 | 3,365 | +10 | 0.30% |
| 2020 | 3,355 | +198 | 6.27% |
| 2019 | 3,157 | +13 | 0.41% |
| 2018 | 3,144 | +9 | 0.29% |
| 2017 | 3,135 | -8 | 0.25% |
Showing 10 of 29 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 34 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 17 residents
47% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 47% | 46% | 47% |
| Never married | 38% | 45% | 31% |
| Divorced | 8% | 7% | 8% |
| Widowed | 8% | 2% | 14% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau