The population according to the 2000 US Census was 22,464, 9,509 households, and 6,415 families residing in the borough. The population density was 1,586.2 people per square mile. There were 9,966 housing units.
The racial makeup of the borough was 89.64% White, 8.85% African American, 0.12% Native American, 0.25% Asian, 0.06% Pacific Islander, 0.25% from other races. Hispanic or Latino of any race were 0.57% of the population.
The median income for a household in the borough was $36,130, and the median income for a family was $46,192. Males had a median income of $36,984 versus $26,529 for females. The per capita income for the borough was $18,140. About 8.8% of families and 10.2% of the population were below the poverty line, including 16.6% of those under age 18 and 9.1% of those age 65 or older. (Information & map courtesy of Wikipedia.org) For a more detailed demographic study visit City Data.com WestMifflin 2000 Census Data