Buffalo Grove village, Illinois Demographics & Population 2026

Population Overview

Buffalo Grove village is a mid-sized community located in Illinois. The total population is 42,824. It ranks as the 35th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Buffalo Grove village is 42.1 years. This is 8% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Buffalo Grove village is $129,820. This is 59% higher than the state median of $81,702. Compared to the national median of $78,538, household income here is 65% higher. The poverty rate stands at 6.5%. This is 44% lower than the state poverty rate of 11.7%. The unemployment rate is 2.5%. This is 57% lower than the state rate of 5.8%. The median home value is $392,900. Housing costs are 57% higher than the state median of $250,500. The home-value-to-income ratio is 3.0x. 81.5% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Buffalo Grove village is White (non-Hispanic), making up 58.6% of the population. Asian residents account for 28.2%. The Black or African American population (3.7%) is well below the state average of 13.6%. The Hispanic or Latino population (6.3%) is well below the state average of 18.5%. The Asian population is significantly higher than the state average (28.2% vs 5.8%).

Education

66.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Buffalo Grove village in the top 10% of all cities in the state for educational attainment. This is 79% higher than the state rate of 37.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.9%. Notably, 29.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Buffalo Grove village, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. For official data, visit data.census.gov.