73533 is zip code located in Duncan, Oklahoma. The population is 28,199, making 73533 the largest zipcode in Duncan and the largest in Stephens County.
There are 11 public schools in 73533 with an average Homefacts rating of C. The total crime rate for Duncan is moderate , and there are 50 registered sex offenders residing in the zip code 73533. Unemployment in 73533 is moderate.