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ZipCityLookup
City Profile

Waterloo, Illinois

Population: 11,013 · 1 ZIP code

Demographics

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

People
Total population
11,013
People
Median age
41.5
Housing
Total households
4,491
Income
Median household income
$98,711
Housing
Total housing units
4,818
Employment
Employment rate
64.9%
Education
Bachelor’s degree or higher
37.3%
Healthcare
Insured population
96.6%
City details
Local time 03:25:17(CT)
LocationWaterloo, IL
Population (ZIP areas)17,630(sum of local ZIP code populations)
Total ZIP codes1total
ZIP codes (by type)
1 Standard
CountyMonroe
Area code
618730
TimezoneCentral Time (CT)
Coordinates38.308842, -90.1494131
Land area143 sq miles(370,458,380 m²)

Map of Waterloo, Illinois with ZIP codes

Map of Waterloo, Illinois and ZIP codes

ZIP Codes in Waterloo

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

ZIPType
Median incomeHousehold
Population (ZIP)
62298Standard$101,15517,630

— 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 Waterloo, IL.

Maeystown, ILFults, ILHecker, ILValmeyer, ILColumbia, ILSmithton, ILMillstadt, ILRed Bud, 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