Demographics & People — Newcastle, Washington
Population Overview
| Population (Census) | 12,945 |
| Estimated 2026 | ~13,100 |
| Median Age | 37.5 |
| Total Households | 5,373 |
| Family Households | 3,604 |
| Average Household Size | 2.4 |
| Diversity Index | 0.5733 (moderately diverse) |
Race & Ethnicity
| White | 5,600 |
| Black or African American | 203 |
| Asian | 5,118 |
| Hispanic or Latino | 754 |
Heritage & Ancestry
| Group | Count |
| Other groups | 6,067 |
| Unclassified or not reported | 2,320 |
| German | 1,354 |
| English | 1,228 |
| Hispanic: Hispanic or Latino | 800 |
| Irish | 625 |
| Hispanic: Mexican | 475 |
| European | 375 |
| Norwegian | 374 |
| Italian | 358 |
Language
| English Only | 7,258 |
| Spanish | 537 |
| Population 5+ | 11,988 |
Veterans
| Veterans | 271 |
| Population 18+ | 10,212 |
Commuting
| Mean Commute Time | 27.9 minutes |
| Work from Home | 30.2% |
| 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 Newcastle, Washington.