Mount Prospect, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Mount Prospect, Illinois is 55,648 as of the 2023 American Community Survey, making it the 24th-largest city in Illinois. The median household income is $103,911, the median home value is $377,000, and the median age is 41.7.
The population has grown 0.7% since 2010 (55,082 → 55,460).
55,648
Population
5191
People / sq mi
$103,911
Median Income
$377,000
Median Home Value
Get Mount Prospect's next ACS population data
Subscribe for Population Review updates by email. No spam, unsubscribe anytime.
Mount Prospect covers 10.7 sq mi of land at 5191 people per square mile.
About Mount Prospect, IL
Mount Prospect is distinguished by its share of foreign-born residents, 10.0% of the population. With 55,648 residents, Mount Prospect is a city in Illinois. It ranks #24 among cities in Illinois by population.
Households take in a median $103,911, comfortably above the US median of $78,538. Only 4.3% of residents live in poverty, below the national 12.4%. Homes carry a median value of $377,000, with typical rent around $1,454.
College attainment is above the local norm at 48.6%, above the national 35.0%. A solid 15.8% of workers are based at home, above the national 14.0%, and the average commute runs about 27 minutes each way.
Mount Prospect village Population History (2010-2024)
The city of Mount Prospect village had a population of 55,082 in 2010 and 55,460 in 2024, a 0.7% growth over 14 years. The peak was 56,705 in 2020. Average annual growth rate: 0.06%.
55,460
Population (2024)
55,082
Population (2010)
56,705
Peak (2020)
0.06%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 55,082 |
| 2011 | 55,264 |
| 2012 | 55,417 |
| 2013 | 55,602 |
| 2014 | 55,770 |
| 2015 | 55,528 |
| 2016 | 55,156 |
| 2017 | 54,675 |
| 2018 | 54,116 |
| 2019 | 53,719 |
| 2020 | 56,705 |
| 2021 | 55,651 |
| 2022 | 54,927 |
| 2023 | 54,748 |
| 2024 | 55,460 |
Race & Ethnicity
| White | 67.1% |
| Black or African American | 2.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.0% |
| Two or More Races | 0.0% |
Economy & Income
$103,911
Median Household Income
$48,113
Per Capita Income
4.3%
Poverty Rate
2.4%
Unemployment Rate
Housing
$377,000
Median Home Value
$1,454
Median Rent
70.0%
Owner-Occupied
Education
91.7%
High School+
48.6%
Bachelor's+
Commute
4.3%
Drive Alone
69.9%
Public Transit
15.8%
Work From Home
27.0 min
Avg Commute
Community Profile
10.0%
Foreign Born
57.6%
Non-English at Home
4.8%
Veterans
9.2%
With Disability
91.2%
Health Insurance
95.6%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 21.1% |
| Manufacturing | 12.8% |
| Finance, Insurance & Real Estate | 12.2% |
| Information | 8.9% |
| Retail Trade | 8.6% |
| Education, Health Care & Social Services | 8.2% |
| Construction | 6.3% |
| Arts, Entertainment & Food Services | 4.8% |
| Transportation & Warehousing | 2.5% |
| Public Administration | 2.5% |
| Agriculture & Mining | 0.3% |
Largest cities in Illinois
Largest counties in Illinois
Part of Illinois
Metro areas in Illinois
City rankings
Frequently Asked Questions
Mount Prospect, Illinois has a population of 55,648 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 24th-largest city in Illinois.
The median household income in Mount Prospect, Illinois is $103,911, with 4.3% of residents living below the federal poverty level.
The median home value in Mount Prospect, Illinois is $377,000, with median monthly rent at $1,454 and a homeownership rate of 70.0%.
The median age in Mount Prospect, Illinois is 41.7 years. The population is 50.1% male and 49.9% female.
The population has grown 0.7% since 2010 (55,082 → 55,460).
Where to stay in Mount Prospect
Visiting or relocating to Mount Prospect, IL? Compare hotels and short-term rentals across the metro — live availability and prices.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
More from Illinois
Population 2,707,648
Population 179,867
Population 149,785
Population 149,424
Population 147,649
Full rankings of Illinois cities by population
Statewide data for Illinois
Population, race, income, age, and trends across Illinois
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.