Demographics & People — Carter Lake, Iowa
Population Overview
| Population (Census) | 3,773 |
| Estimated 2026 | ~3,800 |
| Median Age | 40.0 |
| Total Households | 1,389 |
| Family Households | 1,007 |
| Average Household Size | 2.72 |
| Diversity Index | 0.3413 (somewhat diverse) |
Race & Ethnicity
| White | 2,925 |
| Black or African American | 22 |
| Asian | 23 |
| Hispanic or Latino | 751 |
Heritage & Ancestry
| Group | Count |
| Other groups | 980 |
| German | 823 |
| Unclassified or not reported | 719 |
| Hispanic: Hispanic or Latino | 712 |
| English | 702 |
| Hispanic: Mexican | 651 |
| Irish | 370 |
| Polish | 133 |
| Italian | 116 |
| American | 100 |
Language
| English Only | 2,883 |
| Spanish | 644 |
| Population 5+ | 3,560 |
Veterans
| Veterans | 329 |
| Population 18+ | 2,748 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Carter Lake, Iowa.