Cosmopolis, Washington

Cosmopolis population, 2020 to 2024

Cosmopolis added 29 residents from July 2020 to July 2024, a change of +1.8%. In the latest year it moved by +5.

Cosmopolis covers 1.39 square miles of land and 0.19 of water, for 1,196 people per square mile of land. The median Washington place of 5,000+ has 2,694, so Cosmopolis is less dense than the typical town.

What county Cosmopolis is in

All of Cosmopolis's residents live in Grays Harbor County, which had 77,893 residents in 2024. Cosmopolis holds 2.1% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Cosmopolis

2 ZIP Code Tabulation Areas (ZCTAs) overlap Cosmopolis by at least 10% of the ZCTA's or the city's land: 98537, 98563. 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 Cosmopolis is

The Census internal point of Cosmopolis is at 46.954300, -123.772900. Olympia, the capital, is 41.5 miles E in a straight line. The nearest larger place is Aberdeen, WA (17,044 people), 2.3 miles away. The nearest city of 100,000 or more is Tacoma, WA, 65.1 miles away.

Daylight in Cosmopolis

At 46.95° N, Cosmopolis gets about 15 h 53 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 Cosmopolis

The eight nearest incorporated places of 1,000+ in Washington, measured between internal points. The closest is Aberdeen, 2.3 miles away, with 17,044 people.