Maple Valley, WA Profile: Facts, Map & Data


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Maple Valley, Washington - Basic Facts

The City of Maple Valley had a population of 26,327 as of July 1, 2017. Maple Valley ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for Maple Valley is located at latitude 47.3671 and longitude -122.0348 in King County. The formal boundaries for the City of Maple Valley (see map below) encompass a land area of 5.73 sq. miles and a water area of 0.18 sq. miles. King County is in the Pacific time zone (GMT -8). The elevation is 420 feet.

The City of Maple Valley (GNIS ID: 2411028) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Maple Valley is located within Tahoma-Maple Valley Division of King County.

Beneath the boundary map are tables with Maple Valley population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Maple Valley: Maplevalley.

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City of Maple Valley, WA Boundary Map

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Boundary Maps: Tahoma-Maple Valley Division | King County | Washington Counties

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Maple Valley, WA Data & Demographics (As of July 1, 2017)


Total Population 26,327
Daytime Population: Workers 4,180
Daytime Population: Residents 13,467
Total Daytime Population (TDP) 17,647
Ratio TDP/Total Population1 0.67
Population in Households 26,327
Population in Familes 23,494
Population in Group Qrtrs 0
Population Density2 4,594
Diversity Index3 39


Median Household Income $103,790
Average Household Income $122,163
Per Capita Income $40,864


Total Housing Units 8,949 (100%)
Owner Occupied HU 7,378 (82.4%)
Renter Occupied HU 1,383 (15.5%)
Vacant Housing Units 188 ( 2.1%)
Median Home Value $345,702
Average Home Value $380,828


Total Households 8,761
Average Household Size 3.01
Family Households 7,014
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 2.08% 1.79%
Households 1.83% 1.64%
Families 1.81% 1.66%
Median Household Income   1.06%
Per Capita Income   2.23%

Maple Valley, WA - Peer Comparisons by Rank and Percentile

The table below compares Maple Valley to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 45 93rd
Population Density # 21 97th
Diversity Index # 275 56th
Median Household Income # 37 94th
Per Capita Income # 97 85th

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.

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