Union Gap Flag

Union Gap

County:
Kittitas County
County Seat:
No
Area (mi²):
5.577
State:
Washington

Union Gap is a city located in Kittitas County, Washington. Union Gap has a 2026 population of 6,582. Union Gap is currently declining at a rate of -0.05% annually but its population has increased by 0.44% since the most recent census, which recorded a population of 6,553 in 2020.

The median household income in Union Gap is $59,651 with a poverty rate of 13.8%. The median age in Union Gap is 34.5 years: 34.1 years for males, and 34.8 years for females. For every 100 females there are 98.5 males.

6.6K
Total Population
1,180
Density (mi²)
-3 -0.05%
Growth

Union Gap Population

Union Gap Population

Data after 2023 is projected based on recent change

Year
Population
Growth
Annual Change
20246,582-3-0.05%
20236,585-8-0.12%
20226,593-10-0.15%
20216,603500.76%
20206,553-15-0.23%
20196,204510.83%
20186,15320.03%
20176,15120.03%
20166,149260.42%
20156,12370.11%
20146,11600%
20136,116-9-0.15%
20126,125-14-0.23%
20116,13970.11%
20106,132190.31%
20005,6212,50180.16%
19903,120-64-2.01%
19803,184-3,434-51.89%

Median Age

Overall: 34.5 years
Female: 34.8 years
Male: 34.1 years

Union Gap Adults

There are 4,929 adults, (860 of whom are seniors) in Union Gap.

Sex Ratio

Female: 3,317 (50.4%)
Male: 3,267 (49.6%)

Demographics

The racial composition of Union Gap includes 41.1% White, 26.52% other race, and smaller percentages for Asian, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White2,70641.1%
Two or more races1,83527.87%
Other race1,74626.52%
Asian1792.72%
Native American1181.79%
Race
Population
Percentage (of total)
Other race1,71826.09%
Two or more races1,62124.62%
White4536.88%
Race
Population
Percentage (of total)
White2,25334.22%
Two or more races2143.25%
Asian1792.72%
Native American1181.79%
Other race280.43%

Union Gap Marital Status

Economics and Income Statistics

Union Gap's average per capita income is $35,122. Household income levels show a median of $59,651. The poverty rate stands at 13.8%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$82,888-
Families$74,896$71,332
Households$59,651$68,632
Non Families$35,096$54,985

$35,122

Average Income

$59,651

Median Household Income

13.8%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)