Zip Code 80621 — Fort Lupton, CO

ZIP Code 80621 is associated with Fort Lupton, CO, in Weld County. The listed population estimate is 15,060; estimated density is 45.9 people per square mile. Among records with population estimates, it ranks #8 of 34 in Weld County and #152 of 512 in CO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.107320, -104.798410)

Data MetricLocal Statistic
Postal / Zip Code80621
Primary CityFort Lupton
State / ProvinceCO
CountyWeld
Total Population15,060
Population Density45.9 people/sq mi
TimezoneAmerica/Denver

How 80621 Compares

MetricZIP 80621Weld County recordsCO records
Population estimate15,060396,054 (sum)5,862,421 (sum)
Population Density45.9 /sq mi----
County population rank#8 of 34----
State population rank#152 of 512----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in CO

ZIP CodeCityDistancePopulation estimate
ZIP 80530Frederick6.6 mi6,242
ZIP 80520Firestone7.2 mi1,140
ZIP 80514Dacono8.6 mi6,721
ZIP 80603Brighton8.9 mi16,811
ZIP 80651Platteville9.0 mi4,837

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →