Demographics & People — Gilliam, Missouri
Population Overview
| Population (Census) | 207 |
| Estimated 2026 | ~900 |
| Median Age | 24.0 |
| Total Households | 89 |
| Family Households | 41 |
| Average Household Size | 2.33 |
| Diversity Index | 0.2236 (somewhat diverse) |
Race & Ethnicity
| White | 169 |
| Black or African American | 6 |
| Asian | 0 |
| Hispanic or Latino | 18 |
Heritage & Ancestry
| Group | Count |
| German | 66 |
| Unclassified or not reported | 57 |
| Other groups | 44 |
| American | 18 |
| Irish | 15 |
| English | 12 |
| Hispanic: Mexican | 12 |
| Hispanic: Hispanic or Latino | 12 |
| Swedish | 6 |
| African | 4 |
Language
| English Only | 195 |
| Spanish | 0 |
| Population 5+ | 195 |
Veterans
| Veterans | 4 |
| Population 18+ | 130 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Gilliam, Missouri.