Mckinney is located in Collin County, TX. The population is 143,216, making Mckinney the 2nd largest city in Collin County.
There are 43 public schools in Mckinney with an average Homefacts rating of A-. The total crime rate for Mckinney is very low , and there are 65 registered sex offenders residing in the city. Unemployment in Mckinney is moderate and the median home sales price is $0. Detailed and up-to-date Mckinney property reports are available for any property address.