21 Zip Codes in Guam

The average area for zip codes in Guam is 62.2 km² with the largest being 96915 in Santa Rita, Guam at 228.6 km² and the smallest being 96932 in Agafo Gumas, Yigo, Guam at 0.477 km². In Guam the average population for a zip code is 18,660 with the most populated being zip code 96929 in Yigo, Guam at 70,092. The average population density for a zip code in Guam is 585 / km² with the densest being zip code 96928 in Agat, Guam at 1,689 / km². The median age for zip codes in Guam ranges from 23.5 years old for 96916 in Merizo, Guam to 32.9 years old for 96928 in Agat, Guam. The fastest growing zip code is 96913 in Barrigada, Guam with population growth of 20.2% from 2000 to 2015, an average of 1.2% per year.