Astoria is a port city and the seat of Clatsop County, Oregon, United States. Situated near the mouth of the Columbia River where it meets the Pacific Ocean, the city was named after John Jacob Astor, an investor from New York City whose American Fur Company founded Fort Astoria at the site in 1811, 207 years ago. Astoria was incorporated by the Oregon Legislative Assembly on October 20, 1876.It holds the distinction of being the first permanent United States settlement on the Pacific coast and for having the first U.S. post office west of the Rocky Mountains.Located on the south shore of the Columbia River, the city is served by the deepwater Port of Astoria. Transportation includes the Astoria Regional Airport with U.S. Route 30 and U.S. Route 101 as the main highways, and the 4.1-mile Astoria–Megler Bridge connecting to neighboring Washington across the river. The population was 9,477 at the 2010 census.