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July 03, 2025
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City of Cosmopolis

Cosmopolis is the oldest city on Grays Harbor, since a donation land claim filed there in 1852. It was incorporated in 1891, and is a code city. According to James Phillips, Washington State Place Names, the city was named in 1853 and means "city of the world".

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City Hall:
(360) 532-9230
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(360) 532-6429
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(360) 532-9237
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(360) 533-4280

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