Demographics & People — Klemme, Iowa
Population Overview
| Population (Census) | 540 |
| Estimated 2026 | ~600 |
| Median Age | 41.5 |
| Total Households | 234 |
| Family Households | 146 |
| Average Household Size | 2.31 |
| Diversity Index | 0.0789 (relatively homogeneous) |
Race & Ethnicity
| White | 536 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 23 |
Heritage & Ancestry
| Group | Count |
| German | 357 |
| Unclassified or not reported | 134 |
| Irish | 92 |
| Other groups | 53 |
| Norwegian | 49 |
| Hispanic: Mexican | 41 |
| Hispanic: Hispanic or Latino | 41 |
| European | 29 |
| English | 17 |
| American | 16 |
Language
| English Only | 468 |
| Spanish | 25 |
| Population 5+ | 493 |
Veterans
| Veterans | 30 |
| Population 18+ | 510 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Klemme, Iowa.