Union City is a city located in Pennsylvania. With a 2020 population of 3,081, it is the 308th largest city in Pennsylvania and the 6157th largest city in the United States. Union City is currently declining at a rate of -1.06% annually and its population has decreased by -7.20% since the most recent census, which recorded a population of 3,320 in 2010. Union City reached it's highest population of 3,911 in 1950. Spanning over 2 miles, Union City has a population density of 1,684 people per square mile.
The average household income in Union City is $59,799 with a poverty rate of 21.10%. The median rental costs in recent years comes to $631 per month, and the median house value is $82,200. The median age in Union City is 39.9 years, 39.5 years for males, and 42 years for females. For every 100 females there are 70.5 males.