Demographics & People — New Hartford, Iowa
Population Overview
| Population (Census) | 763 |
| Estimated 2026 | ~500 |
| Median Age | 38.2 |
| Total Households | 283 |
| Family Households | 228 |
| Average Household Size | 2.7 |
| Diversity Index | 0.0108 (relatively homogeneous) |
Race & Ethnicity
| White | 734 |
| Black or African American | 0 |
| Asian | 4 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 274 |
| Unclassified or not reported | 235 |
| Irish | 124 |
| Other groups | 97 |
| English | 49 |
| Norwegian | 33 |
| American | 20 |
| Celtic | 10 |
| Danish | 9 |
| European | 6 |
Language
| English Only | 724 |
| Spanish | 0 |
| Population 5+ | 728 |
Veterans
| Veterans | 19 |
| Population 18+ | 542 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for New Hartford, Iowa.