Demographics & People — Guilford Lake, Ohio
Population Overview
| Population (Census) | 1,109 |
| Estimated 2026 | ~1,900 |
| Median Age | 49.5 |
| Total Households | 494 |
| Family Households | 301 |
| Average Household Size | 2.24 |
| Diversity Index | 0.0379 (relatively homogeneous) |
Race & Ethnicity
| White | 1,066 |
| Black or African American | 0 |
| Asian | 21 |
| Hispanic or Latino | 0 |
Heritage & Ancestry
| Group | Count |
| German | 353 |
| Irish | 217 |
| Scotch-Irish | 164 |
| Unclassified or not reported | 137 |
| Other groups | 131 |
| Polish | 58 |
| Italian | 50 |
| Swiss | 43 |
| English | 38 |
| Slovak | 35 |
Language
| English Only | 1,091 |
| Spanish | 0 |
| Population 5+ | 1,091 |
Veterans
| Veterans | 72 |
| Population 18+ | 858 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Guilford Lake, Ohio.