Tillamook County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 27,390. The county seat is Tillamook. The county is named for the Tillamook people or Killamook people, a Native American tribe who were living in the area in the early 19th century at the time of European American settlement. The county is located within Northwest Oregon.

History

The Tillamook were the southernmost branch of the Coast Salish. They were separated from their more northern kinsmen by tribes speaking the Chinookian languages. The name Tillamook is of Chinook origin (a trade pidgin, which had developed along the lower Columbia.) According to Frank Boas, "It [Tillamook] means the people of Nekelim. The latter name means the place of Elim, or in the Cathlamet dialect, the place of Kelim. The initial t of Tillamook is the plural article, the terminal ook the Chinook plural ending —uks." Since there was one village in the area of Nehalem bay; the area was referred to as Nekelim (Ne Elim=singular). There were at least four villages on the south Tillamook bay according to Lewis and Clark; the south bay was called "T-Elim-ook" (the plural of Elim), meaning many villages of Elim. The Chinook word for water was "chuck" and the Salish word for wetland is "naslex". The popular translation of Tillamook as meaning "land of many waters" seems to be 20th-century fabrication used in the tourist industry.

Tillamook County, the 12th county in Oregon to be organized, was established on December 15, 1853, when the Territorial Legislature approved an act to create the new county out of an area previously included in Clatsop, Yamhill and Polk counties. Boundary changes were enacted with Clatsop County (1855, 1870, and 1893), Lincoln County in 1893, Washington County (1893, 1898), and Yamhill County (1887).

The Coast Range behind Tillamook was the scene of a repeated series of forest fires called the Tillamook Burn between 1933 and 1951. In 1948, a state ballot approved the sale of bonds to buy the burned-over areas and have the state rehabilitate the lands. The state lands were renamed the Tillamook State Forest by governor Tom McCall on July 18, 1973. By the end of the 20th century, the replanted growth was considered mature enough to be commercially harvested.

The Tillamook airbase for blimps was commissioned on December 1, 1942, as U.S. Naval Air Station Tillamook. The two wooden hangars used to house these airships were decommissioned after World War II and deeded to Tillamook County. One of the hangars (Hangar B) is a national historic landmark and the location of the Tillamook Air Museum. The other hangar, (Hangar A) burned down in 1992.

The U.S. Mount Hebo Air Force Station was a Cold War air defense installation from 1956 to 1980. Located south of Tillamook, at the top of high Mount Hebo, Air Force radars operated by the 689th Radar Squadron and the 14th Missile Warning Squadron were essential parts of the nation's integrated air defenses. The large radomes protecting the radars from adverse weather effects could be seen silhouetted against the sky from most of Tillamook County.

Development along U.S. Route 101 to the north of Tillamook during the last part of the 20th century has blocked part of the flood plain of the Wilson River, contributing to repeated winter flooding in the city. Until the late 1950s there was a dredge used by the city to keep the slough's deeper.

Geography

alt=Map of Tillamook County|thumb|Map of Tillamook County

thumb|Beach at Oceanside and Three Arch Rocks National Wildlife Refuge

According to the United States Census Bureau, the county has a total area of , of which is land and (17%) is water. At in elevation, Rogers Peak is the highest point in the county and the highest in the Northern Oregon Coast Range.

The county has been called "a natural cow pasture" by Sunset Magazine.

Adjacent counties

  • Clatsop County (north)
  • Washington County (east)
  • Yamhill County (east)
  • Polk County (southeast)
  • Lincoln County (south)

National protected areas

  • Cape Meares National Wildlife Refuge
  • Nestucca Bay National Wildlife Refuge
  • Oregon Islands National Wildlife Refuge (part)
  • Siuslaw National Forest (part)
  • Three Arch Rocks National Wildlife Refuge

Demographics