Mount Prospect is a city in Illinois, with a population of 55,395 and about 5,167 residents per square mile. The median household earns $101,720 a year, and the median home is worth $397,400.
Conditions
Humidity & wind
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UV index
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Sunrise & sunset
—
Local time
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Size & density
Land area
11 sq mi
Water excluded
Population density
5,167
People per square mile
Rank by population
#800
Of cities on this site
Rank by area
#805
Of cities on this site
Money & housing
Median household income
$101,720
US median ≈ $78,538
Median gross rent
$1,502
Per month
Homeownership
68.7%
US ≈ 65%
Average commute
25.9 min
One way
People
Median age
41.1
US median 39.1
Bachelor's degree +
48.6%
Age 25 and over
Foreign born
29.6%
Households
21,600
2.56 people each
What people here do for work
Education & health care20.3%
Professional & business services13.2%
Manufacturing12%
Retail trade10.5%
Top four industries · share of all workers · ACS 2024
Wealthiest person in Illinois
Name
Lukas Walton
Forbes, Apr 2025
Net worth
$39B
As of 25 Apr 2025 — not live
Lives in
Chicago
Source of wealth
Walmart
Compiled from public reporting, not from an official dataset, and not independently verified.
Largest employer in Illinois · private sector
Employer
Advocate Health Care
Sector
Healthcare
Compiled from public reporting, not from an official dataset, and not independently verified. Government employers are excluded.
Largest public company in Illinois
Company
Archer Daniels Midland
Revenue
$85.5B
Fiscal year 2024
Headquarters
Chicago
Ticker
ADM
Compiled from public reporting, not from an official dataset, and not independently verified.