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Zip Code 81151 — Sanford, CO

81151 is a ZIP Code associated with Sanford, CO, located within Costilla. The postal region supports an estimated population of 1,716 residents across Data Pending housing units, with a population density of 2.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (37.233760, -105.715060)

Data MetricLocal Statistic
Postal / Zip Code81151
Primary CitySanford
State / ProvinceCO
CountyCostilla
Total Population1,716
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density2.3 people/sq mi
TimezoneAmerica/Denver

How 81151 Compares

MetricZIP 81151Costilla CountyCO State Average
Population1,7165,1745,862,421
Median IncomeData PendingN/AN/A
Population Density2.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 81141Manassa11.1 mi1,406N/A
Zip 81123Blanca14.4 mi606N/A
Zip 81138Jaroso15.3 mi17N/A
Zip 81148Romeo15.5 mi387N/A
Zip 81101Alamosa18.1 mi15,550N/A

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 →