Zelienople is located in Butler County, PA. The population is 3,815, making Zelienople the 4th largest city in Butler County.
There are 1 public schools in Zelienople with an average Homefacts rating of A-. The total crime rate for Zelienople is very low, and there are 4 registered sex offenders residing in the city. Unemployment in Zelienople is moderate and the median home sales price is $0.