Demographics & People — Adelphi, Ohio
Population Overview
| Population (Census) | 327 |
|---|
| Estimated 2026 | ~300 |
|---|
| Median Age | 41.0 |
|---|
| Total Households | 153 |
|---|
| Family Households | 78 |
|---|
| Average Household Size | 2.14 |
|---|
| Diversity Index | 0.0436 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 307 |
|---|
| Black or African American | 0 |
|---|
| Asian | 7 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 147 |
| German | 129 |
| Irish | 75 |
| Italian | 26 |
| Other groups | 25 |
| English | 9 |
| American | 6 |
| European | 6 |
| Dutch | 6 |
| French (except Basque) | 5 |
Language
| English Only | 320 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 320 |
|---|
Veterans
| Veterans | 13 |
|---|
| Population 18+ | 270 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Adelphi, Ohio.
