County ProfileRI
Washington County
Population: 129,839 · 21 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
129,839
People
Median age
45.5
Housing
Total households
52,549
Income
Median household income
$106,638
Housing
Total housing units
66,385
Employment
Employment rate
58.7%
Education
Bachelor’s degree or higher
52.4%
Healthcare
Insured population
98%
County details
Local time 03:16:57(ET)| Name | Washington |
|---|---|
| Total ZIP codes | 21total |
| ZIP codes (by type) | 18 Standard3 PO Box |
| Area code | 401 |
| Timezone | Eastern Time (ET) |
| Coordinates | 41.396792, -71.620282 |
| Land area | 329.3 sq miles(852.8 km²) |
Map of Washington county, Rhode Island with ZIP codes
Cities and Communities in Washington County
Compare the largest cities in Washington County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Westerly | 18,423 | $95,207 | 1ZIPs |
| Kingston | 7,825 | $107,404 | 1ZIPs |
| Hope Valley | 1,870 | $101,932 | 1ZIPs |
| Charlestown | 1,714 | $108,563 | 1ZIPs |
| Ashaway | 1,501 | $103,707 | 1ZIPs |
| Bradford | 1,457 | $120,250 | 1ZIPs |
| Carolina | 924 | $140,196 | 1ZIPs |
| Hopkinton | 475 | $21,274 | 1ZIPs |
| Wyoming | 415 | — | 1ZIPs |
| Block Island | — | — | 1ZIPs |
| Exeter | — | — | 1ZIPs |
| Kenyon | — | — | 1ZIPs |
| Narragansett | — | — | 1ZIPs |
| North Kingstown | — | — | 1ZIPs |
| Rockville | — | — | 1ZIPs |
| Saunderstown | — | — | 1ZIPs |
| Shannock | — | — | 1ZIPs |
| Wakefield | — | — | 2ZIPs |
| West Kingston | — | — | 1ZIPs |
| Wood River Junction | — | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Washington County
Review the most populated postal areas across Washington County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 02804 | Ashaway | — | — |
| 02807 | Block Island | — | — |
| 02808 | Bradford | — | — |
| 02812 | Carolina | — | — |
| 02813 | Charlestown | — | — |
| 02822 | Exeter | — | — |
| 02832 | Hope Valley | — | — |
| 02833 | Hopkinton | — | — |
| 02836 | Kenyon | — | — |
| 02852 | North Kingstown | — | — |
| 02873 | Rockville | — | — |
| 02874 | Saunderstown | — | — |
| 02875 | Shannock | — | — |
| 02879 | Wakefield | — | — |
| 02880 | Wakefield | — | — |
| 02881 | Kingston | — | — |
| 02882 | Narragansett | — | — |
| 02891 | Westerly | — | — |
| 02892 | West Kingston | — | — |
| 02894 | Wood River Junction | — | — |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS