what county is emmaus pa in
Homefacts City Report. Emmaus is located in Lehigh County, PA. The population is 11,268, making Emmaus the 4th largest city in Lehigh County. There are 4 public schools in Emmaus with an average Homefacts rating of A-. The total crime rate for Emmaus is low, and there are 11 registered sex offenders residing in the city.