Tumwater, WA Profile: Facts, Map & Data


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Tumwater, Washington - Basic Facts

The City of Tumwater had a population of 18,833 as of July 1, 2016.

The primary coordinate point for Tumwater is located at latitude 46.989 and longitude -122.924 in Thurston County. The formal boundaries for the City of Tumwater (see map below) encompass a land area of 14.36 sq. miles and a water area of 0.13 sq. miles. Thurston County is in the Pacific time zone (GMT -8). The elevation is 174 feet.

The City of Tumwater (GNIS ID: 2412111) 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 Tumwater is located within Olympia Division of Thurston County.

Beneath the boundary map are tables with Tumwater population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Tumwater: Des Chutes, Falls River, New Market, Spa-kwatl, Tumwater Falls.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Tumwater, WA Boundary Map

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Boundary Maps: Olympia Division | Thurston County | Washington Counties

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Tumwater, WA Data & Demographics (As of July 1, 2016)


Total Population 18,833
Population in Households 18,657
Population in Familes 13,670
Population in Group Qrtrs 176
Population Density1 1,312
Diversity Index2 41


Total Households 8,118
Average Household Size 2.3
Family Households 4,771
Average Family Size 3


Total Housing Units 8,716 (100%)
Owner Occupied HU 4,478 (51.4%)
Renter Occupied HU 3,640 (41.8%)
Vacant Housing Units 598 ( 6.9%)
Median Home Value $257,946
Average Home Value $280,288


Median Household Income $62,267
Average Household Income $77,243
Per Capita Income $33,576
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.3% 1.41%
Households 1.13% 1.28%
Families 1.08% 1.2%
Median Household Income   1.8%
Per Capita Income   1.55%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Tumwater, WA - Peer Comparisons by Rank and Percentile

The table below compares Tumwater to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2016 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 # 74 88th
Population Density1 # 229 64th
Diversity Index2 # 256 59th
Median Household Income # 209 67th
Per Capita Income # 169 73rd

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

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