1879Government
== History ==
The area was settled in 1879 by three men who were improving a trail and brought their families in.
1892Culture
Suquamish tribe chairperson Martha George was born near Maple Valley in Sheridan in 1892, at a logging camp where her mother and grandmother worked as cooks.
1910Education
A two-room school went up in 1910, and a larger high school was built in 1929 as the first school in the Tahoma School District.
1947History
The mine was used as late as 1947.
1964History
It remained in operation until 1964.
1997Government
=== Incorporation and recent development ===
The city of Maple Valley was officially incorporated on August 31, 1997.
2000History
From 2000 – 2010 the City grew nearly 63% - the 17th fastest growing city in the State during that period.
2010History
=== 2010 census ===
As of the 2010 census, there were 22,684 people, 7,679 households, and 6,159 families residing in the city.
2015Education
In 2015, a bond measure was passed to build a new and more centralized high school for the district.
2017Government
The area was annexed into Maple Valley and the new three-story Tahoma High School was completed in 2017.
2023History
As of the 2023 American Community Survey, there are 9,300 estimated households in Maple Valley with an average of 3.02 persons per household.
2025History
According to realtor website Zillow, the average price of a home as of May 31, 2025, in Maple Valley is $820,893.