Tumwater, Washington

Tumwater population, 2020 to 2024

Tumwater added 1,683 residents from July 2020 to July 2024, a change of +6.4%. In the latest year it moved by +651. Among 125 Washington places of 5,000 or more, that growth ranks 29th; the median place changed by +2.6%. The median place of 5,000+ in Washington has 18,148 people, so Tumwater is 1.5 times that size.

Tumwater covers 17.74 square miles of land and 0.28 of water, for 1,569 people per square mile of land. The median Washington place of 5,000+ has 2,694, so Tumwater is less dense than the typical town.

What county Tumwater is in

All of Tumwater's residents live in Thurston County, which had 302,912 residents in 2024. Tumwater holds 9.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Tumwater

2 ZIP Code Tabulation Areas (ZCTAs) overlap Tumwater by at least 10% of the ZCTA's or the city's land: 98501, 98512. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Tumwater is

The Census internal point of Tumwater is at 46.989500, -122.917300. Olympia, the capital, is 3.3 miles NNE in a straight line. The nearest larger place is Olympia, WA (56,271 people), 3.7 miles away. The nearest city of 100,000 or more is Tacoma, WA, 28.1 miles away.

Daylight in Tumwater

At 46.99° N, Tumwater gets about 15 h 54 min of daylight around the June solstice and 8 h 31 min around the December solstice, a swing of 7 h 23 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Tumwater

The eight nearest incorporated places of 1,000+ in Washington, measured between internal points. The closest is Olympia, 3.7 miles away, with 56,271 people.