74021 is zip code located in Collinsville, Oklahoma. The population is 18,108, making 74021 the largest zipcode in Collinsville.
There are 6 public schools in 74021 with an average Homefacts rating of B+. The total crime rate for Collinsville is very low , and there are 27 registered sex offenders residing in the zip code 74021. Unemployment in 74021 is moderate.