Demographics & People — St. James, Maryland
Population Overview
| Population (Census) | 4,581 |
| Estimated 2026 | ~5,400 |
| Median Age | 40.9 |
| Total Households | 1,653 |
| Family Households | 1,192 |
| Average Household Size | 2.72 |
| Diversity Index | 0.4319 (moderately diverse) |
Race & Ethnicity
| White | 3,004 |
| Black or African American | 278 |
| Asian | 192 |
| Hispanic or Latino | 620 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 1,781 |
| Other groups | 854 |
| English | 581 |
| German | 493 |
| Hispanic: Hispanic or Latino | 411 |
| Irish | 341 |
| American | 321 |
| Hispanic: Puerto Rican | 205 |
| Norwegian | 177 |
| Italian | 104 |
Language
| English Only | 3,505 |
| Spanish | 562 |
| Population 5+ | 4,381 |
Veterans
| Veterans | 200 |
| Population 18+ | 3,091 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. James, Maryland.