Demographics & People — Marshfield, Massachusetts
Population Overview
| Population (Census) | 4,698 |
| Estimated 2026 | ~6,400 |
| Median Age | 46.1 |
| Total Households | 1,826 |
| Family Households | 1,127 |
| Average Household Size | 2.56 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 4,583 |
| Black or African American | 0 |
| Asian | 26 |
| Hispanic or Latino | 28 |
Heritage & Ancestry
| Group | Count |
| Irish | 1,704 |
| Unclassified or not reported | 990 |
| English | 803 |
| Italian | 697 |
| American | 374 |
| Other groups | 364 |
| Scottish | 213 |
| German | 135 |
| Hispanic: Hispanic or Latino | 133 |
| Portuguese | 127 |
Language
| English Only | 4,184 |
| Spanish | 33 |
| Population 5+ | 4,319 |
Veterans
| Veterans | 287 |
| Population 18+ | 3,636 |
Commuting
| Mean Commute Time | 29.3 minutes |
| Work from Home | 20.8% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Marshfield, Massachusetts.