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ZipCityLookup
City Profile

Oswego, Illinois

Population: 34,585 · 1 ZIP code

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
34,585
People
Median age
38.7
Housing
Total households
12,243
Income
Median household income
$123,792
Housing
Total housing units
12,440
Employment
Employment rate
68.8%
Education
Bachelor’s degree or higher
44.3%
Healthcare
Insured population
97%
City details
Local time 01:41:06(CT)
LocationOswego, IL
Population (ZIP areas)40,299(sum of local ZIP code populations)
Total ZIP codes1total
ZIP codes (by type)
1 Standard
CountyKendall
Area code
331630
TimezoneCentral Time (CT)
Coordinates41.6682656, -88.3229075
Land area41.9 sq miles(108,640,840 m²)

Map of Oswego, Illinois with ZIP codes

Map of Oswego, Illinois and ZIP codes

ZIP Codes in Oswego

Explore the ZIP codes that make up Oswego. Analyze key demographics and population stats for the region using the comprehensive table below.

ZIPType
Median incomeHousehold
Population (ZIP)
60543Standard$119,37140,299

— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP type legend

  • Standard: residential and business delivery areas
  • PO BOX: primarily post office boxes; population may be unavailable
  • Unique: high-volume organizations (universities, agencies, etc.)

Nearby cities

Other cities near Oswego, IL.

Montgomery, ILPlainfield, ILAurora, ILBristol, ILYorkville, ILEola, ILNaperville, ILNorth Aurora, IL

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS