Collinsville is located in Dekalb County, AL. The population is 2,948, making Collinsville the 6th largest city in Dekalb County.
There are 1 public schools in Collinsville with an average Homefacts rating of D+. , and there are 17 registered sex offenders residing in the city. Unemployment in Collinsville is low and the median home sales price is $0. Detailed and up-to-date Collinsville property reports are available for any property address.