Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in Jefferson County Address Data
Businesses Addresses: 23,814
PO Box Addresses: 9,490
Residential Addresses: 329,478
Multi-Family Addresses: 76,081
Single Family Addresses: 249,539
Advertisement
Map of Jefferson County, CO ZIP Codes With Actual (Default) City Names