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Zip Code 52166 — Saint Lucas, IA

52166 is a ZIP Code associated with Saint Lucas, IA, located within Fayette. 52166 ranks #14 out of 15 ZIP codes in Fayette County by population (and #888 out of 970 in IA). The area supports an estimated population of 137 residents across Data Pending housing units, with a population density of 204.9 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.067910, -91.935470)

Data MetricLocal Statistic
Postal / Zip Code52166
Primary CitySaint Lucas
State / ProvinceIA
CountyFayette
Total Population137
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density204.9 people/sq mi
TimezoneAmerica/Chicago

How 52166 Compares

MetricZIP 52166Fayette CountyIA State Average
Population13719,227 (Total)3,210,984 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density204.9 /sq mi----
County Pop Rank#14 of 15----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 52144Fort Atkinson5.1 mi1,075N/A
Zip 52171Waucoma5.7 mi1,314N/A
Zip 52175West Union7.6 mi3,484N/A
Zip 52147Hawkeye8.3 mi911N/A
Zip 52168Spillville9.4 mi356N/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 →