95521 is zip code located in Arcata, California. The population is 20,108, making 95521 the largest zipcode in Arcata and the 3rd largest in Humboldt County.
There are 13 public schools in 95521 with an average Homefacts rating of B+. The total crime rate for Arcata is moderate , and there are 21 registered sex offenders residing in the zip code 95521. Unemployment in 95521 is moderate.
Zip codes within Arcata include 95518.