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Zip Code 80420 — Alma, CO

ZIP Code 80420 is associated with Alma, CO, in Park County. The listed population estimate is 1,246; estimated density is 11.4 people per square mile. Among records with population estimates, it ranks #3 of 9 in Park County and #316 of 512 in CO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.314510, -106.105530)

Data MetricLocal Statistic
Postal / Zip Code80420
Primary CityAlma
State / ProvinceCO
CountyPark
Total Population1,246
Population Density11.4 people/sq mi
TimezoneAmerica/Denver

How 80420 Compares

MetricZIP 80420Park County recordsCO records
Population estimate1,24616,274 (sum)5,862,421 (sum)
Population Density11.4 /sq mi----
County population rank#3 of 9----
State population rank#316 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 80461Leadville11.1 mi6,957
ZIP 80424Breckenridge11.8 mi9,764
ZIP 80440Fairplay12.9 mi3,502
ZIP 80443Frisco13.3 mi3,992
ZIP 81649Red Cliff15.4 mi345

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 →