Demographics & People — Marble Rock, Iowa
Population Overview
| Population (Census) | 199 |
|---|
| Estimated 2026 | ~200 |
|---|
| Median Age | 51.5 |
|---|
| Total Households | 99 |
|---|
| Family Households | 49 |
|---|
| Average Household Size | 2.01 |
|---|
| Diversity Index | 0.0 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 190 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 119 |
| Unclassified or not reported | 109 |
| Irish | 19 |
| English | 15 |
| Norwegian | 14 |
| American | 10 |
| Scotch-Irish | 10 |
| Other groups | 10 |
| Dutch | 8 |
| French (except Basque) | 8 |
Language
| English Only | 197 |
|---|
| Spanish | 0 |
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| Population 5+ | 197 |
|---|
Veterans
| Veterans | 21 |
|---|
| Population 18+ | 215 |
|---|
Commuting
| Mean Commute Time | 25.4 minutes |
|---|
| Work from Home | 4.0% |
|---|
| Commuter Profile | N/A |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Marble Rock, Iowa.
