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County ProfileIL

McDonough County

Population: 27,238 · 11 ZIP codes

Demographics

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

People
Total population
27,238
People
Median age
34.9
Housing
Total households
11,856
Income
Median household income
$52,795
Housing
Total housing units
13,587
Employment
Employment rate
57.3%
Education
Bachelor’s degree or higher
31.4%
Healthcare
Insured population
92.6%
County details
Local time 00:50:58(CT)
NameMcDonough
Total ZIP codes11total
ZIP codes (by type)
10 Standard1 PO Box
Area code217, 309, 447, 861
TimezoneCentral Time (CT)
Coordinates40.4558082, -90.6789543
Land area589.3 sq miles(1,526.3 km²)

Map of McDonough county, Illinois with ZIP codes

Map of McDonough County, Illinois and ZIP codes

Cities and Communities in McDonough County

Compare the largest cities in McDonough County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Macomb15,051$44,4111ZIPs
Bushnell2,718$67,5181ZIPs
Colchester1,108$63,9811ZIPs
Blandinsville569$52,3751ZIPs
Prairie City407$60,6941ZIPs
Industry399$51,2501ZIPs
Good Hope363$73,6361ZIPs
Adair2121ZIPs
Bardolph210$28,7501ZIPs
Tennessee101$77,5001ZIPs
Sciota38$122,6391ZIPs

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

ZIP Codes in McDonough County

Review the most populated postal areas across McDonough County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
61455Macomb$48,67917,630
61422Bushnell$68,2073,099
62326Colchester$65,0002,255
61420Blandinsville$69,375964
61438Good Hope$68,516709
61440Industry$66,786600
61470Prairie City$72,708542
61411Adair355
62374Tennessee$78,571285
61416Bardolph$28,750210
61475Sciota$85,000201

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