Demographics & People — Southwest City, Missouri
Population Overview
| Population (Census) | 845 |
| Estimated 2026 | ~1,400 |
| Median Age | 28.2 |
| Total Households | 303 |
| Family Households | 193 |
| Average Household Size | 2.79 |
| Diversity Index | 0.4611 (moderately diverse) |
Race & Ethnicity
| White | 305 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 541 |
Heritage & Ancestry
| Group | Count |
| Other groups | 698 |
| Hispanic: Hispanic or Latino | 670 |
| Hispanic: Mexican | 476 |
| Unclassified or not reported | 223 |
| Hispanic: Central American | 183 |
| Hispanic: Guatemalan | 123 |
| Hispanic: Honduran | 60 |
| German | 32 |
| Irish | 23 |
| English | 22 |
Language
| English Only | 379 |
| Spanish | 363 |
| Population 5+ | 758 |
Veterans
| Veterans | 13 |
| Population 18+ | 576 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Southwest City, Missouri.