City in Benton County, Iowa · 0.4 sq mi · 1,386 people per sq mi
About 620 people live in Keystone. The typical household earns $67,500, and the median resident is 43.5 years old.
2026 projection
From 602 in 2020
Poverty rate 10.56%
Men 38.6 · Women 49.9
2010–2026
621
2026 projection
3.2% 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.
2010–2026
621
2026 projection
3.2% 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 | 621 | +4 | 0.65% |
|---|---|---|---|
| 2025 | 617 | -1 | 0.16% |
| 2024 | 618 | -1 | 0.16% |
| 2023 | 619 | +12 | 1.98% |
| 2022 | 607 | -1 | 0.16% |
| 2021 | 608 | +6 | 1.00% |
| 2020 | 602 | -10 | 1.63% |
| 2019 | 612 | +5 | 0.82% |
| 2018 | 607 | -4 | 0.65% |
| 2017 | 611 | -1 | 0.16% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 7 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 9 residents
44% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 44% | 47% | 40% |
| Never married | 31% | 38% | 24% |
| Divorced | 15% | 11% | 19% |
| Widowed | 11% | 4% | 17% |
| Separated | <1% | <1% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau