Buffalo Grove, Illinois

Buffalo Grove population, 2020 to 2024

Buffalo Grove lost 22 residents from July 2020 to July 2024, a change of -0.1%. In the latest year it moved by +250. Among 330 Illinois places of 5,000 or more, that growth ranks 114th; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Buffalo Grove is 2.9 times that size.

Buffalo Grove covers 9.57 square miles of land and 0.02 of water, for 4,501 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Buffalo Grove is denser than the typical town.

The 2 counties Buffalo Grove spans

Buffalo Grove crosses county lines. The Census county-part estimates split its 43,072 residents as follows; Lake County holds 68.6% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

ZIP codes in Buffalo Grove

1 ZIP Code Tabulation Area (ZCTA) overlaps Buffalo Grove by at least 10% of the ZCTA's or the village's land: 60089. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a village that annexed land after 2020 may reach into ZIP codes not listed here.

Where Buffalo Grove is

The Census internal point of Buffalo Grove is at 42.166000, -87.961800. Springfield, the capital, is 186.8 miles SSW in a straight line. The nearest larger place is Arlington Heights, IL (75,596 people), 4.8 miles away. The nearest city of 100,000 or more is Elgin, IL, 20.6 miles away.

Daylight in Buffalo Grove

At 42.17° N, Buffalo Grove gets about 15 h 16 min of daylight around the June solstice and 9 h 06 min around the December solstice, a swing of 6 h 10 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Buffalo Grove

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Lincolnshire, 3.1 miles away, with 8,008 people.