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Zip Code 61360 — Seneca, IL

61360 is a ZIP Code associated with Seneca, IL, located within LaSalle. The postal region supports an estimated population of 3,610 residents across Data Pending housing units, with a population density of 29.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.334390, -88.605220)

Data MetricLocal Statistic
Postal / Zip Code61360
Primary CitySeneca
State / ProvinceIL
CountyLaSalle
Total Population3,610
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density29.4 people/sq mi
TimezoneAmerica/Chicago

How 61360 Compares

MetricZIP 61360LaSalle CountyIL State Average
Population3,610106,52412,694,745
Median IncomeData PendingN/AN/A
Population Density29.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 61341Marseilles4.5 mi7,692N/A
Zip 60479Verona8.3 mi671N/A
Zip 60450Morris9.2 mi20,783N/A
Zip 60557Wedron11.3 miN/AN/A
Zip 60470Ransom11.8 mi358N/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 →