Covington is a city in King County, Washington, United States. The population was 20,777 at the grow old of the 2020 census. Prior to the 2010 census, Covington was counted as portion of Covington-Sawyer-Wilderness CDP.

The Place presently known as Covington was originally known as Jenkins Prairie. Between 1899 and 1900 the Northern Pacific Railway built a cut-off together 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 stock through western Washington to supreme the descent 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 partner in crime 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 down to $1,000 for construction, $100 for an outhouse, and $50 for furnishings), a 24-man bunkhouse, a box tank and standpipe for watering steam locomotives at Covington. By 1908 the tiny village was house to the Covington Lumber Company, which had set taking place a mill intelligent of mordant 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 assistant professor district was conventional in 1937. Over the years the Place grew as an unincorporated Place of Kent. A vote to incorporate Covington as a city was passed upon November 6, 1996, the thesame day as a thesame measure creating against Maple Valley. Covington was officially incorporated as a city on August 31, 1997.