Tumwater, Washington

Tumwater, Washington
Panoramic view of the upper falls and the former Olympia Brewery, 2011
Interactive location map of Tumwater
Coordinates: 47°0′28″N 122°54′40″W / 47.00778°N 122.91111°W / 47.00778; -122.91111
CountryUnited States
StateWashington
CountyThurston
IncorporatedNovember 25, 1869
Government
 • TypeMayor–council
 • MayorLeatta Dahlhoff
Area
 • Total
17.76 sq mi (46.00 km2)
 • Land17.50 sq mi (45.32 km2)
 • Water0.26 sq mi (0.67 km2)
Elevation
174 ft (53 m)
Population
 (2020)
 • Total
25,350
 • Estimate 
(2024)
27,826
 • Density1,372.8/sq mi (530.04/km2)
Time zoneUTC−8 (PST)
 • Summer (DST)UTC−7 (PDT)
ZIP Codes
98501, 98511–98512
Area code360
FIPS code53-72905
GNIS feature ID1512742
Websiteci.tumwater.wa.us

Tumwater is a city in Thurston County, Washington, United States. The population was 25,350 at the 2020 census. The city is situated near where the Deschutes River enters Budd Inlet, the southernmost point of Puget Sound; it also borders the state capital of Olympia to the north. Tumwater is the oldest permanent Anglo-American settlement on Puget Sound. The city is the southern gateway to the wider Seattle/Tacoma urban area, which stretches from Tumwater to Marysville along the Interstate 5 corridor.