Covington is a city in King County, Washington, United States. The population was 17,575 at the grow old of the 2010 census. Prior to the 2010 census, Covington was counted as ration of Covington-Sawyer-Wilderness CDP.

The area presently known as Covington was originally known as Jenkins Prairie. Between 1899 and 1900 the Northern Pacific Railway built a cut-off with Auburn and Kanaskat, improving the company’s primary east-west route across Stampede Pass. Richard Covington, a surveyor for the Northern Pacific Railroad worked out of Fort Vancouver establishing the lineage through western Washington to unqualified the lineage from St. Paul, Minnesota, to Auburn. According to the NP’s construction chronicles at the University of Montana’s K. Ross Toole Archives, the primary contractors were banker Horace C. Henry of Seattle, Washington, and long-time railroad contractor Nelson Bennett of Tacoma, Washington, the NP’s prime contractor for Stampede Tunnel, which he completed in 1888. The project engineer in Auburn was George Allen Kyle. The NP’s principal co-conspirator engineer in Tacoma, overseeing both Kyle and Bennett’s work, was Charles S. Bihler.

In 1900, during the building of the Palmer Cut-Off from Kanaskat to Auburn, the Northern Pacific installed at 2,850-foot passing track, a 700-foot loading track, a second class section house (which broke alongside to $1,000 for construction, $100 for an outhouse, and $50 for furnishings), a 24-man bunkhouse, a bin tank and standpipe for watering steam locomotives at Covington. By 1908 the tiny village was home to the Covington Lumber Company, which had set occurring a mill bright of acid 85,000 board feet of timber a day. No photograph is known to exist of the station at this site, apparently built after the cut-off construction. It operated upon and off until the Great Depression and was removed in 1941.

A intellectual district was time-honored in 1937. Over the years the area grew as an unincorporated area of Kent. Covington was officially incorporated as a city on August 31, 1997.

As of the census of 2010, there were 17,575 people, 5,817 households, and 4,649 families residing in the city. The population density was 2,999.1 inhabitants per square mile (1,158.0/km²). There were 6,081 housing units at an average density of 1,037.7 per square mile (400.7/km²). The racial makeup of the city was 76.1% White, 4.2% African American, 0.8% Native American, 8.5% Asian, 0.6% Pacific Islander, 3.9% from further races, and 5.8% from two or more races. Hispanic or Latino of any race were 9.3% of the population.