61231 is zip code located in Aledo, Illinois. The population is 5,328, making 61231 the largest zipcode in Aledo and the largest in Mercer County.
There are 3 public schools in 61231 with an average Homefacts rating of B+. The total crime rate for Aledo is very low , and there are 1 registered sex offenders residing in the zip code 61231. Unemployment in 61231 is moderate.