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Zip Code 61604 — Peoria, IL

61604 is a ZIP Code associated with Peoria, IL, located within Peoria. The postal region supports an estimated population of 28,313 residents across Data Pending housing units, with a population density of 719.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.705250, -89.652970)

Data MetricLocal Statistic
Postal / Zip Code61604
Primary CityPeoria
State / ProvinceIL
CountyPeoria
Total Population28,313
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density719.5 people/sq mi
TimezoneAmerica/Chicago

How 61604 Compares

MetricZIP 61604Peoria CountyIL State Average
Population28,313179,93412,694,745
Median IncomeData PendingN/AN/A
Population Density719.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 61625Peoria2.1 mi456N/A
Zip 61606Peoria2.2 mi6,684N/A
Zip 61605Peoria2.2 mi13,424N/A
Zip 61602Peoria3.1 mi1,163N/A
Zip 61603Peoria4.1 mi15,356N/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 →