City in Floyd County, Iowa · 0.8 sq mi · 303 people per sq mi
About 250 people live in Marble Rock. The typical household earns $65,625, and the median resident is 51.5 years old.
2026 projection
From 269 in 2020
Poverty rate 6.28%
Men 52.1 · Women 51.3
2010–2026
252
2026 projection
6.3% 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.
2010–2026
252
2026 projection
6.3% 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 | 252 | -3 | 1.18% |
|---|---|---|---|
| 2025 | 255 | -4 | 1.54% |
| 2024 | 259 | -4 | 1.52% |
| 2023 | 263 | -2 | 0.75% |
| 2022 | 265 | -1 | 0.38% |
| 2021 | 266 | -3 | 1.12% |
| 2020 | 269 | -21 | 7.24% |
| 2019 | 290 | -2 | 0.68% |
| 2018 | 292 | -3 | 1.02% |
| 2017 | 295 | -1 | 0.34% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 2 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 16 residents
52% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 52% | 55% | 49% |
| Never married | 29% | 29% | 28% |
| Divorced | 10% | 13% | 7% |
| Widowed | 10% | 4% | 15% |
| Separated | <1% | 0% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau