Buffalo Grove, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Buffalo Grove, Illinois is 42,824 as of the 2023 American Community Survey, making it the 35th-largest city in Illinois. The median household income is $129,820, the median home value is $392,900, and the median age is 42.1.
The population has grown 3.7% since 2010 (41,536 → 43,072).
42,824
Population
4476
People / sq mi
$129,820
Median Income
$392,900
Median Home Value
Buffalo Grove covers 9.6 sq mi of land at 4476 people per square mile.
About Buffalo Grove, IL
Buffalo Grove is a city in Illinois with a population of 42,824. It ranks #35 among cities in Illinois by population. The median age is 42.1, older than the national median. The population is 47.2% male and 52.8% female.
The median household income in Buffalo Grove is $129,820, above the US median of $74,580. 5.3% of residents live below the federal poverty level. Home values sit at a median of $392,900, with monthly rent averaging $2,042. The homeownership rate of 81.5% is higher than the national rate of 64.8%.
Educational attainment in Buffalo Grove reflects 66.6% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 28.5% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 27.5 minutes each way.
Buffalo Grove village Population History (2010-2024)
The city of Buffalo Grove village had a population of 41,536 in 2010 and 43,072 in 2024, a 3.7% growth over 14 years. The peak was 43,094 in 2020. Average annual growth rate: 0.27%.
43,072
Population (2024)
41,536
Population (2010)
43,094
Peak (2020)
0.27%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 41,536 |
| 2011 | 41,655 |
| 2012 | 41,662 |
| 2013 | 41,745 |
| 2014 | 41,700 |
| 2015 | 41,499 |
| 2016 | 41,381 |
| 2017 | 41,147 |
| 2018 | 40,775 |
| 2019 | 40,494 |
| 2020 | 43,094 |
| 2021 | 42,829 |
| 2022 | 42,713 |
| 2023 | 42,822 |
| 2024 | 43,072 |
Race & Ethnicity
| White | 61.6% |
| Black or African American | 3.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.8% |
| Two or More Races | 0.0% |
Economy & Income
$129,820
Median Household Income
$60,111
Per Capita Income
5.3%
Poverty Rate
1.7%
Unemployment Rate
Housing
$392,900
Median Home Value
$2,042
Median Rent
81.5%
Owner-Occupied
Education
96.8%
High School+
66.6%
Bachelor's+
Commute
3.2%
Drive Alone
62.1%
Public Transit
28.5%
Work From Home
27.5 min
Avg Commute
Community Profile
13.9%
Foreign Born
54.3%
Non-English at Home
2.8%
Veterans
7.6%
With Disability
96.5%
Health Insurance
96.8%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 19.9% |
| Finance, Insurance & Real Estate | 19.8% |
| Manufacturing | 12.5% |
| Information | 11.0% |
| Education, Health Care & Social Services | 6.4% |
| Arts, Entertainment & Food Services | 5.0% |
| Retail Trade | 4.6% |
| Construction | 2.4% |
| Public Administration | 2.0% |
| Transportation & Warehousing | 1.4% |
| Agriculture & Mining | 0.1% |
Largest cities in Illinois
Largest counties in Illinois
Part of Illinois
Metro areas in Illinois
City rankings
Frequently Asked Questions
Buffalo Grove, Illinois has a population of 42,824 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 35th-largest city in Illinois.
The median household income in Buffalo Grove, Illinois is $129,820, with 5.3% of residents living below the federal poverty level.
The median home value in Buffalo Grove, Illinois is $392,900, with median monthly rent at $2,042 and a homeownership rate of 81.5%.
The median age in Buffalo Grove, Illinois is 42.1 years. The population is 47.2% male and 52.8% female.
The population has grown 3.7% since 2010 (41,536 → 43,072).
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.