Demographics & People — Waterloo, Iowa
Population Overview
| Population (Census) | 66,947 |
| Estimated 2026 | ~67,100 |
| Median Age | 36.7 |
| Total Households | 28,947 |
| Family Households | 16,036 |
| Average Household Size | 2.28 |
| Diversity Index | 0.4487 (moderately diverse) |
Race & Ethnicity
| White | 46,280 |
| Black or African American | 11,508 |
| Asian | 1,758 |
| Hispanic or Latino | 5,092 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 19,238 |
| German | 15,847 |
| Other groups | 15,713 |
| Irish | 6,947 |
| English | 5,227 |
| Hispanic: Hispanic or Latino | 4,793 |
| American | 3,318 |
| Hispanic: Mexican | 3,226 |
| Norwegian | 2,002 |
| Yugoslavian | 1,790 |
Language
| English Only | 53,537 |
| Spanish | 3,392 |
| Population 5+ | 62,060 |
Veterans
| Veterans | 3,442 |
| Population 18+ | 51,269 |
Commuting
| Mean Commute Time | 15.9 minutes |
| Work from Home | 7.6% |
| 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 Waterloo, Iowa.