There are 34 zip codes in Weld County, Colorado. The most populated is 80634, located in Greeley. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
8063462,001Greeley
8050460,527Longmont
8063154,346Greeley
8055041,428Windsor
8051634,998Erie
8062021,048Evans
8053419,368Johnstown
8062113,863Fort Lupton
805439,109Milliken
806158,840Eaton
805146,275Dacono
805305,774Frederick
805425,179Mead
806425,146Hudson
806454,810La Salle
806514,441Platteville
806433,989Keenesburg
806103,172Ault
806442,604Kersey
806501,896Pierce
805201,736Firestone
806481,296Nunn
806231,082Gilcrest
80611809Briggsdale
80624681Gill
80729403Grover
80652342Roggen
80612309Carr
80546234Severance
80742224New Raymer
80622202Galeton
80754138Stoneham
8073224Hereford
80646Lucerne
showing: 34 rows

Zip Codes in Weld County, Colorado by Population (2024)