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Zip Code 66854 — Hartford, KS

66854 is a ZIP Code associated with Hartford, KS, located within Lyon. The postal region supports an estimated population of 1,007 residents across Data Pending housing units, with a population density of 4.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.258720, -95.987350)

Data MetricLocal Statistic
Postal / Zip Code66854
Primary CityHartford
State / ProvinceKS
CountyLyon
Total Population1,007
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density4.0 people/sq mi
TimezoneAmerica/Chicago

How 66854 Compares

MetricZIP 66854Lyon CountyKS State Average
Population1,00732,7382,947,026
Median IncomeData PendingN/AN/A
Population Density4.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 66864Neosho Rapids7.1 mi375N/A
Zip 66839Burlington13.0 mi3,654N/A
Zip 66860Madison13.2 mi1,342N/A
Zip 66856Lebo13.3 mi1,583N/A
Zip 66852Gridley13.8 mi587N/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 →