Demographics & People — Buffalo Grove, Illinois

Population Overview

Population (Census)42,824
Estimated 2026~43,100
Median Age42.0
Total Households16,068
Family Households12,013
Average Household Size2.65
Diversity Index0.5349 (moderately diverse)

Race & Ethnicity

White26,363
Black or African American1,617
Asian12,094
Hispanic or Latino2,705

Heritage & Ancestry

GroupCount
Other groups18,489
Unclassified or not reported6,445
German3,966
Polish3,261
Hispanic: Hispanic or Latino2,926
Russian2,891
Irish2,525
Italian2,388
Ukrainian2,204
Hispanic: Mexican2,020

Language

English Only21,977
Spanish2,097
Population 5+40,437

Veterans

Veterans950
Population 18+32,423

Commuting

Mean Commute Time26.3 minutes
Work from Home32.1%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Buffalo Grove, Illinois.