what county is gresham or in?
Gresham is located in Multnomah County, OR. The population is 108,958, making Gresham the 2nd largest city in Multnomah County and the 4th largest city in the state of Oregon. There are 26 public schools in Gresham with an average Homefacts rating of C+. The total crime rate for Gresham is very low, and there are 6 registered sex offenders residing in the city.