Buffalo Grove Population

1960–2026

42,768

2026 projection

0.7% since 2020 (decrease)

010K20K30K40K50K1960197019801990200020102020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Buffalo Grove. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202642,768-440.10%
202542,812-950.22%
202442,907+1570.37%
202342,750+890.21%
202242,661-1650.39%
202142,826-2570.60%
202043,083+2,5806.37%
201940,503-3030.74%
201840,806-3560.86%
201741,162-2310.56%

Showing 10 of 22 years.

Buffalo Grove Demographics

42median age

Median age

Female42.3 yrs
Male41.8 yrs

Adults

32,374
6,774 seniors · 21%25,600 other adults

Sex

Female 52% · 22,299Male 48% · 20,592

Population by age

MaleFemale85+ years, male: 27885+ years, female: 38880–84 years, male: 23880–84 years, female: 56775–79 years, male: 42975–79 years, female: 68070–74 years, male: 94170–74 years, female: 91865–69 years, male: 1,04965–69 years, female: 1,28660–64 years, male: 1,06560–64 years, female: 1,44055–59 years, male: 1,19955–59 years, female: 1,54350–54 years, male: 1,90250–54 years, female: 1,60845–49 years, male: 1,83545–49 years, female: 1,65640–44 years, male: 1,90940–44 years, female: 1,86335–39 years, male: 1,43435–39 years, female: 1,52330–34 years, male: 72630–34 years, female: 1,26325–29 years, male: 85825–29 years, female: 80320–24 years, male: 1,32720–24 years, female: 90215–19 years, male: 1,42315–19 years, female: 1,79710–14 years, male: 1,99310–14 years, female: 1,7805–9 years, male: 1,2335–9 years, female: 1,1470–4 years, male: 7530–4 years, female: 1,13585+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 429 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Buffalo Grove Income

$129,395median household income

Median household income

$129,395

Half of households earn more, half earn less

Median earnings

$84,680

Typical yearly pay for a worker 25 or older.

Poverty rate

7.2%

About 1 in 14 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Buffalo Grove Marital Status

63% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married63%68%59%
Never married25%26%24%
Divorced7%5%9%
Widowed5%2%7%
Separated<1%<1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year