Union, WA Profile: Facts, Map & Data


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Union, Washington - Basic Facts

The Union Census Designated Place had a population of 637 as of July 1, 2017.

The primary coordinate point for Union is located at latitude 47.3475 and longitude -123.0952 in Mason County. The formal boundaries for the Union Census Designated Place (see map below) encompass a land area of 1.62 sq. miles and a water area of 0 sq. miles. Mason County is in the Pacific time zone (GMT -8). The elevation is 148 feet.

The Union Census Designated Place (GNIS ID: 2586749) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Union Census Designated Place is located within Union-Grapeview Division of Mason County.

Beneath the boundary map are tables with Union 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 Union: Union City.

EXTREMELY LOCAL Demographic Data

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Union Census Designated Place, WA Boundary Map

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Boundary Maps: Union-Grapeview Division | Mason County | Washington Counties

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


Total Population 637
Daytime Population: Workers 170
Daytime Population: Residents 557
Total Daytime Population (TDP) 727
Ratio TDP/Total Population1 1.14
Population in Households 637
Population in Familes 496
Population in Group Qrtrs 0
Population Density2 394
Diversity Index3 27


Median Household Income $51,388
Average Household Income $59,027
Per Capita Income $26,918


Total Housing Units 417 (100%)
Owner Occupied HU 246 (59.0%)
Renter Occupied HU 51 (12.2%)
Vacant Housing Units 121 (29.0%)
Median Home Value $334,259
Average Home Value $361,885


Total Households 296
Average Household Size 2.15
Family Households 192
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 0.13% 0.19%
Households 0.09% 0.2%
Families 0.29% 0.1%
Median Household Income   1.72%
Per Capita Income   4.28%

Union, WA - Peer Comparisons by Rank and Percentile

The table below compares Union 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 # 443 30th
Population Density # 449 29th
Diversity Index # 427 32nd
Median Household Income # 395 37th
Per Capita Income # 360 43rd

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

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Washington Census Data Comparison Tool

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