City of Union City, Tennessee

Union City is located at 36°25'27" North, 89°3'24" West (36.424167, -89.056944).

According to the United States Census Bureau, the city has a total area of 10.67 mi² (27.63 km²). 10.66 mi² (27.61 km²) of it is land and 0.00 mi² (0.01 km²) of it is covered by water. The total area is 0.04% water.

Union City is located in the Central Standard Time (CST) timezone, GMT-06:00. It observes Daylight Saving Time (DST).