Buffalo Grove, IL Population

Overview

43,062

Total Population

41.2

Median age

52.40%

Female population %

90.8:100

Gender ratio (M:F)

45-49 years

Largest age group

48.8

Total dependency ratio

White

Largest racial group

2,793

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Buffalo Grove's population is old compared to the rest of the country:

The median age in Buffalo Grove is 41.2, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Buffalo Grove's population under 18 was 24.17%, compared to the 22.51% nationwide.
Buffalo Grove's elderly or the senior population (over 65 age) was 14.01% as compared to 16.04% nationwide.
Of the total population in Buffalo Grove, 18.79% were under the age of 15, 16.90% aged 15 to 29, 50.30% aged 30 to 64, 12.22% aged 65 to 84, and 1.79% were 85 years of age and older.

There are 2,066 more females than males in Buffalo Grove:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 52.40% females and 47.60% males in Buffalo Grove, IL.
The Buffalo Grove, IL gender ratio is 90.8:100 i.e. 90.8 men to 100 women (0.908).
For male population, the largest age group is 45-49 years with a population of 1,886.
For the female population, the largest age group is 60-64 years with a population of 1,887.

Buffalo Grove's population has become increasingly diverse:

Racial distribution of Buffalo Grove population: 67.36% are White, 3.25% are Black or African American, 0.26% are American Indian and Alaska Native, 24.01% are Asian, 0.08% are Native Hawaiian and other Pacific Islander, 1.76% are some other race and 3.29% are multiracial.
Buffalo Grove's racial breakdown clearly shows that there is an absolute majority of White population in the village.
By ethnicity, 2,793 is Hispanic or Latino (of any race), and 40,269 (93.51% of the total population) is Non-Hispanic.
The largest racial group in Buffalo Grove is White with a population of 29,005 (67.36% of the total population).

Buffalo Grove's population has already reached its peak and is showing a trend of decline:

The peak population was 43,267 in the year 2001
From 2000 to 2010, Buffalo Grove's population decreased by 1,642 (3.80%), as compared to the national growth of 9.63%.
From 2010 to 2020, Buffalo Grove's population increased by 1,549 (3.73%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Buffalo Grove's population was lowest in year 2019 at 40,503.