Union Gap is a city located in Washington. With a 2020 population of 6,170, it is the 116th largest city in Washington and the 4224th largest city in the United States. Union Gap is currently growing at a rate of 0.08% annually and its population has increased by 2.03% since the most recent census, which recorded a population of 6,047 in 2010. Spanning over 6 miles, Union Gap has a population density of 1,105 people per square mile.
The average household income in Union Gap is $46,390 with a poverty rate of 27.02%. The median rental costs in recent years comes to $782 per month, and the median house value is $105,200. The median age in Union Gap is 33.5 years, 31.9 years for males, and 35.5 years for females. For every 100 females there are 106.7 males.