1899Architecture
Between 1899 and 1900, the Northern Pacific Railway built the Palmer Cutoff between Auburn and Palmer to improve the company's primary east–west rail route across Stampede Pass.
1900Government
== History ==
Covington was founded in 1900 at a Northern Pacific Railway stop and grew into a suburban bedroom community in the late 20th century.
1908Economy
By 1908, the settlement was also home to the Covington Lumber Company, which had set up a mill capable of cutting 85,000 board feet of timber a day.
1937Government
A school district for Covington was established in 1937.
1941History
NP's operations at Covington continued until the Great Depression; the facilities were then removed in 1941.
1996Government
The vote to incorporate Covington as a city passed on November 6, 1996, the same day a similar measure created neighboring Maple Valley.
1997Government
It was incorporated as a city on August 31, 1997.
2000Culture
== Demographics ==
Prior to the 2000 census, part of Covington was counted as part of Covington-Sawyer-Wilderness CDP.
2009Disaster
The city's first fire station opened in 2009; it is a 17,385-square foot building located on Southeast 256th Street.
2010History
=== 2010 census ===
As of the 2010 census, there were 17,575 people, 5,817 households, and 4,649 families residing in the city.
2018Architecture
MultiCare opened a four-story hospital serving the city in 2018 with 58 beds, emergency rooms, and a family birth center.
2020History
=== Racial and ethnic composition ===
=== 2020 census ===
As of the 2020 census, there were 20,777 people, 7,005 households, and 5,416 families residing in the city.
2023History
=== American Community Survey ===
As of the 2023 American Community Survey, there are 7,324 estimated households in Covington with an average of 2.86 persons per household.
2025History
According to realtor website Zillow, the average price of a home as of May 31, 2025, in Covington is $692,755.