Demographics & People — Rock Valley, Iowa
Population Overview
| Population (Census) | 4,061 |
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| Estimated 2026 | ~4,100 |
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| Median Age | 35.1 |
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| Total Households | 1,595 |
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| Family Households | 1,052 |
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| Average Household Size | 2.48 |
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| Diversity Index | 0.4168 (moderately diverse) |
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Race & Ethnicity
| White | 3,101 |
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| Black or African American | 0 |
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| Asian | 0 |
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| Hispanic or Latino | 1,304 |
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Heritage & Ancestry
| Group | Count |
|---|
| Dutch | 1,686 |
| Hispanic: Hispanic or Latino | 978 |
| German | 763 |
| Other groups | 697 |
| Hispanic: Mexican | 504 |
| Unclassified or not reported | 470 |
| Hispanic: Central American | 408 |
| Hispanic: Guatemalan | 408 |
| American | 309 |
| English | 263 |
Language
| English Only | 3,032 |
|---|
| Spanish | 813 |
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| Population 5+ | 3,866 |
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Veterans
| Veterans | 48 |
|---|
| Population 18+ | 3,112 |
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Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Rock Valley, Iowa.
