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Zip Code 51243 — Little Rock, IA

51243 is a ZIP Code associated with Little Rock, IA, located within Lyon. The postal region supports an estimated population of 735 residents across Data Pending housing units, with a population density of 5.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.442500, -95.902870)

Data MetricLocal Statistic
Postal / Zip Code51243
Primary CityLittle Rock
State / ProvinceIA
CountyLyon
Total Population735
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density5.4 people/sq mi
TimezoneAmerica/Chicago

How 51243 Compares

MetricZIP 51243Lyon CountyIA State Average
Population73512,2623,210,984
Median IncomeData PendingN/AN/A
Population Density5.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 51237George8.7 mi1,605N/A
Zip 51249Sibley8.9 mi3,564N/A
Zip 51232Ashton10.7 mi658N/A
Zip 51246Rock Rapids13.2 mi4,041N/A
Zip 51244Matlock13.8 mi144N/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 →