Thurston County, Washington

Thurston County, Washington, has 304,261 residents (July 2025 estimate). Its county seat is Olympia. It uses Pacific Time and covers 723 sq mi (1,871 km²) of land.

SeattleSpokaneTacoma
Thurston County in Washington
Pierce CountyLaceyOlympiaTumwaterYelm
Thurston County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
304,261
Land area
723 sq mi (1,871 km²)
County seat or government
Olympia
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Median household income
$96,563 ± $1,945
Median home value
$480,300 ± $4,565
Median rent, with utilities
$1,736 ± $30
Homes lived in by their owners
67.7% ± 1.2 points
County type
County
Metro or micro area
Olympia-Lacey-Tumwater, WA metro areaCentral county
Water area
51.6 sq mi (134 km²)
State
Washington
County code (FIPS)
53067
Coordinates (central point)
46.935822, -122.830152

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 Thurston County

Time zoneLocal time and UTC offsetNext clock change
Pacific TimeAmerica/Los_AngelesUTC-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

  1. 9850148,067 people
  2. 9850341,656 people
  3. 9851338,017 people
  4. 9850235,398 people
  5. 9851231,864 people
  6. 9851629,177 people
  7. 9853127,337 people
  8. 9859726,669 people
  9. 9850618,497 people
  10. 9857914,048 people
  11. 985897,010 people
  12. 985764,985 people
All 16
  1. 985683,050 people
  2. 98505881 people
  3. 98530619 people
  4. 98556350 people

16 ZIP Code areas overlap Thurston 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 Thurston County, largest first

  1. North Thurston Public Schools114,238 people
  2. Olympia School District71,329 people
  3. Tumwater School District45,467 people
  4. Yelm Community Schools35,367 people
  5. Centralia School District25,669 people
  6. Rochester School District15,860 people
  7. Tenino School District10,230 people
  8. Griffin School District6,253 people
  9. Rainier School District5,158 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.

Tribal areas in Thurston County, largest first

  1. Chehalis Reservation and Off-Reservation Trust Land713 people
  2. Nisqually Reservation628 people

American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Lacey, Washington (city)57,737 people
  2. Olympia, Washington (city)55,951 people
  3. Tumwater, Washington (city)26,956 people
  4. Yelm, Washington (city)11,102 people
  5. Tanglewilde, Washington (CDP)6,314 people
  6. Rochester, Washington (CDP)5,834 people
  7. Grand Mound, Washington (CDP)3,287 people
  8. North Yelm, Washington (CDP)2,522 people
  9. Rainier, Washington (city)2,455 people
  10. Tenino, Washington (city)2,025 people
  11. Nisqually Indian Community, Washington (CDP)628 people
  12. Bucoda, Washington (town)494 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Lewis County, Washington33 mi southeast
  2. Pierce County, Washington33 mi east
  3. Mason County, Washington33 mi northwest
  4. Grays Harbor County, Washington48 mi west

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.