West Mifflin is located at 40°22'5" North, 79°53'51" West (40.368089, -79.897633).
According to the United States Census Bureau, the borough has a total area of 14.42 mi2 (37.36 km2). 14.16 mi2 (36.68 km2) of it is land and 0.26 mi2 (0.68 km2) of it is covered by water. The total area is 1.81% water.
West Mifflin is located in the Eastern Standard Time (EST) timezone, GMT-05:00. It observes Daylight Saving Time (DST).
West Mifflin Borough, PA Location in United States