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Zip Code 61342 — Mendota, IL

61342 is a ZIP Code associated with Mendota, IL, located within LaSalle. 61342 ranks #5 out of 26 ZIP codes in LaSalle County by population (and #392 out of 1,396 in IL). The area supports an estimated population of 8,543 residents across Data Pending housing units, with a population density of 30.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.540890, -89.093800)

Data MetricLocal Statistic
Postal / Zip Code61342
Primary CityMendota
State / ProvinceIL
CountyLaSalle
Total Population8,543
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density30.5 people/sq mi
TimezoneAmerica/Chicago

How 61342 Compares

MetricZIP 61342LaSalle CountyIL State Average
Population8,543106,524 (Total)12,694,745 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density30.5 /sq mi----
County Pop Rank#5 of 26----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 61371Triumph4.8 mi83N/A
Zip 61372Troy Grove5.2 mi300N/A
Zip 61330La Moille9.5 mi1,182N/A
Zip 61317Cherry9.6 mi521N/A
Zip 60518Earlville9.8 mi3,289N/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 →