71770 is zip code located in Waldo, Arkansas. The population is 3,205, making 71770 the largest zipcode in Waldo and the 2nd largest in Columbia County.
There are 0 public schools in 71770 with an average Homefacts rating of NA. , and there are 4 registered sex offenders residing in the zip code 71770. Unemployment in 71770 is very high.