St. Helens, Oregon
Channel: 宇宙のすべての知識 プリンシピア
Date: 2019-01-08

St. Helens, Oregon, by Wikipedia https://en.wikipedia.org/wiki?curid=130711 / CC BY SA 3.0

St. Helens, Oregon

St. Helens is the county seat of Columbia County, Oregon. It was founded by Captain Henry Montgomery Knighton, a native of New England, in 1845, as "Plymouth". The name was changed to St. Helens in the latter part of 1850 for its view of Mount St. Helens, roughly away in Washington. The city is about 28 miles (45 km) northwest of Portland. Its population was 12,883 at the 2010 census.

St. Helens was established as a river port on the Columbia River in the 1840s. In 1853, the Pacific Mail Steamship Company tried to make the city their only stop on the Columbia River. Portland's merchants boycotted this effort, and the San Francisco steamship "Peytona" helped break the impasse. St. Helens was incorporated as a city in 1889.

The Lewis and Clark Expedition passed through and camped in the area that is now St. Helens on the night of November 5, 1805, while on their way to the Pacific Ocean. While there, the party encountered Native Americans and Clark observed "low rockey clifts".

U.S. Route 30 passes through the city.

According to the United States Census Bureau, the city has a total area of , of which is land and is covered by water.

According to the Köppen climate classification system, St. Helens has a warm-summer Mediterranean climate "Csb".

Columbia Heights is a formerly separate populated place that is within the city limits of St. Helens.

According to the Portland State University Population Research Center, the estimated 2017 population of St. Helens is 13,240. 

As of the census of 2010, there were 12,883 people, 4,847 households, and 3,243 families residing in the city. The population density was . There were 5,154 housing units at an average density of . The racial makeup of the city was 90.3% White, 0.6% African American, 1.6% Native American, 1.3% Asian, 0.3% Pacific Islander, 1.3% from other races, and 4.5% from two or more races. Hispanic...