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is an unincorporated community in Tillamook County, Oregon, United States, located on U.S. Route 101 and the Nestucca River, about 12 miles south of Tillamook. For statistical purposes, the United States Census Bureau has defined Beaver as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name. The population of the CDP was 145 at the 2000 census.
Beaver post office was established in 1889. The American Beaver was important to the early economy of the Oregon Country, and numerous places were named for the industrious rodent. The pioneers of Oregon associated the beaver's industry with the growth of their new home.