ZIP Codes of Washington County, RI

Population & People
Population & People
Total Population
130,344
Household Income
Household Income
Median Income
$104,150
Housing
Housing
Total Housing Units
66,385
Business & Economy
Business & Economy
Total Businesses
3,795
Employment
Employment
Employment Rate
58.67%
Education
Education
Bachelor's Degree+
52.37%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 23 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:23 ZIP Codes (19 Standard, 4 PO Box, 0 Unique) [See All]
Area Code:401
Timezone:Eastern (GMT -05:00)
Local Time:11:54:57 PM
Population:130,344 [See All]
FIPS:44009
CBSA:Providence-Warwick, RI-MA
Land Area:349 sq mi
Water Area:33 sq mi
Coordinates:41.4596, -71.6201
Quick Link:
https://www.zip-codes.com/county/ri-washington.asp
Need Washington data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Extreme geographic sprawl
The largest ZIP spans 630× the smallest by area — 53.8 sq mi down to 0.09.
Notable income spread
Median income ranges $56,472 to $159,861 across ZIPs — a 2.8× gap.
Striking education divide
Bachelor's share spans 33.6% to 80.6% — a 47-point gap.

Standout ZIPs in this County


Most Populous
North Kingstown · 23,406 people
18.0% of county total
Highest Income
Saunderstown · $159,861 median
1.5× county average
Largest Land Area
Exeter · 53.8 sq mi
Spans the most ground
Fastest Growth
West Kingston · 35.7% (10-yr)
4,252 → 5,768 residents
Most Educated
Kingston · 80.6% bachelor's+
1,276 of 1,583 adults 25+

Things worth knowing about Washington County


130,344 residents live across 23 ZIPs covering 349 sq mi, served by 22 distinct USPS-recognized cities.

Population moved from 126,609 to 130,344 from 2014 to 2024 — a +3.0% change. 13 ZIPs gained residents, 7 lost.

The county's wealthiest ZIP 02874 (Saunderstown, $159,861 median) and poorest ZIP 02881 (Kingston, $56,472) are 3.8 miles apart — a 2.8× income gap across local geography.

Median home values vary 3.8× across this county — from $340,600 in 02894 (Wood River Junction) to $1,301,100 in 02807 (Block Island).

Density varies 30× across the county — from 80 people/sq mi in 02807 (Block Island) to 2,392 in 02881 (Kingston).

Educational attainment ranges from 33.6% bachelor's+ in 02804 (Ashaway) to 80.6% in 02881 (Kingston) — the breadth of educational profiles across the area.

Within Rhode Island, this is the #3 most populous of 5 counties and ranks #4 for median household income .

Weighted by population, the typical household earns about $108,342 across the county — reflecting what a typical resident sees, not a simple ZIP average.

52.4% of adults age 25+ hold a bachelor's degree or higher (48,185 of 92,003 reporting).

19 Standard delivery, 4 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Washington County


Higher-education hub

3 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.

Kingston
80.6%
7,687 residents
Saunderstown
70.3%
6,379 residents
Narragansett
64.3%
13,091 residents

All ZIP Codes in Washington County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
02852North KingstownStandard23,406$118,64331.54.1%
02879WakefieldStandard21,802$112,23141.17.7%
02891WesterlyStandard21,587$97,11028.40.9%
02882NarragansettStandard13,091$95,72114.8-6.1%
02813CharlestownStandard8,051$109,40441.83.4%
02881KingstonStandard7,687$56,4723.2-4.6%
02822ExeterStandard6,539$112,81353.82.8%
02874SaunderstownStandard6,379$159,86116.12.0%
02892West KingstonStandard5,768$135,80930.935.7%
02832Hope ValleyStandard4,998$105,97625.54.1%
02808BradfordStandard2,657$106,6816.914.9%
02804AshawayStandard2,609$102,11812.78.1%
02898WyomingStandard1,912$119,03811.730.5%
02812CarolinaStandard1,479$104,9344.1-24.0%
02894Wood River JunctionStandard8314.723.3%
02807Block IslandPO Box777$83,1909.7-13.0%
02833HopkintonStandard4993.5-11.7%
02873RockvillePO Box124$46,4066.6-33.3%
02836KenyonStandard1040.320.9%
02875ShannockStandard441.8-91.1%
02877SlocumStandard0.1
02880WakefieldPO Box0.0
02883Peace DalePO Box0.0

Adjacent & Nearby Counties