Adams County, Washington
Adams County, Washington, has 21,488 residents (July 2025 estimate). Its county seat is Ritzville. It uses Pacific Time and covers 1,925 sq mi (4,986 km²) of land.
- Resident population, July 2025
- 21,488
- Land area
- 1,925 sq mi (4,986 km²)
- County seat or government
- Ritzville
- Time zone
- Pacific TimeUTC-08:00 in January; UTC-07:00 in July
- Median household income
- $66,136 ± $4,393
- Median home value
- $273,300 ± $14,966
- Median rent, with utilities
- $877 ± $81
- Homes lived in by their owners
- 69.3% ± 3.7 points
- County type
- County
- Metro or micro area
- Othello, WA micro areaCentral county
- Water area
- 4.81 sq mi (12.5 km²)
- State
- Washington
- County code (FIPS)
- 53001
- Coordinates (central point)
- 47.011238, -118.512861
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Adams County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Pacific TimeAmerica/Los_Angeles | UTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 9934419,534 people
- 993266,336 people
- 988574,062 people
- 991692,587 people
- 991591,323 people
- 990321,018 people
- 99341765 people
- 99371394 people
- 99333151 people
- 9883287 people
- 9910541 people
11 ZIP Code areas overlap Adams County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Adams County, largest first
- Othello School District16,789 people
- North Franklin School District10,847 people
- Warden School District3,951 people
- Ritzville School District2,586 people
- Lind School District1,404 people
- Odessa School District1,380 people
- Sprague School District832 people
- LaCrosse School District712 people
- Endicott School District653 people
- Washtucna School District394 people
- Lamont School District230 people
- Benge School District43 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Othello, Washington (city)8,795 people
- Ritzville, Washington (city)1,855 people
- Lind, Washington (town)565 people
- Hatton, Washington (town)429 people
- Washtucna, Washington (town)292 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Franklin County, Washington38 mi southwest
- Lincoln County, Washington40 mi north
- Whitman County, Washington47 mi east
- Grant County, Washington47 mi west
Before using this answer on a form
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