63534 is zip code located in Callao, Missouri. The population is 818, making 63534 the largest zipcode in Callao and the 6th largest in Macon County.
There are 1 public schools in 63534 with an average Homefacts rating of B+. , and there are 7 registered sex offenders residing in the zip code 63534. Unemployment in 63534 is moderate.