West Mifflin is located in Pennsylvania. West Mifflin, Pennsylvania has a population of 19,981. West Mifflin is less family-centric than the surrounding county with 22% households with children. The county percentage for households with children is 22%.
The median household income in West Mifflin, Pennsylvania is $53,991. The median household income for the surrounding county is $64,381 compared to the national median of $66,222. The median age of people living in West Mifflin is 44.3 years.
The average high temperature in July is 84.5 degrees, with an average low temperature in January of 19.8 degrees. The annual precipitation is 38.22.