51031 is zip code located in Le Mars, Iowa. The population is 12,070, making 51031 the largest zipcode in Le Mars and the largest in Plymouth County.
There are 6 public schools in 51031 with an average Homefacts rating of B+. The total crime rate for Le Mars is low , and there are 30 registered sex offenders residing in the zip code 51031. Unemployment in 51031 is low.