Census tracts · Buffalo Grove, IL

Census tracts in Buffalo Grove, Illinois

8 census tracts lie mostly within Buffalo Grove, and 11 more reach into it, by the 2020 census blocks they share. Median household income runs from $85,865 in Tract 8030.12 to $205,759 in Tract 8645.18, against $129,395 for Buffalo Grove as a whole (ACS 2020-2024 5-year estimates).

Which census tracts of Buffalo Grove earn the most and the least?

The five tracts with the highest and the lowest median household income among those mostly within Buffalo Grove and with a reliable estimate.

Tract 8645.18 $205,759
Tract 8645.17 $205,142
Tract 8645.20 $147,321
Tract 8645.16 $139,522
Tract 8645.19 $139,404
Tract 8030.10 $119,125
Tract 8030.13 $104,564
Tract 8030.12 $85,865

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

Every census tract in Buffalo Grove

Sort by any column; the share column is how much of each tract's land (by 2020 census blocks) lies inside Buffalo Grove.

Census tracts in or partly in Buffalo Grove, ACS 2020-2024 5-year estimates. Distance and direction from the Census Bureau's internal point of Buffalo Grove (2024 Gazetteer), which is not always its downtown

Tract 8030.1317031803013	1.7 mi south	Cook County	5,690±964	$104,564	$288,200	$1,536	100%
Tract 8645.1617097864516	0.8 mi west	Lake County	4,271±431	$139,522	$407,600	$1,937	98%
Tract 8645.1917097864519	at the center point	Lake County	5,562±846	$139,404	$416,000	$3,000	97%
Tract 8645.1817097864518	0.8 mi northwest	Lake County	5,051±542	$205,759	$490,400	$2,578	92%
Tract 8645.2017097864520	0.8 mi northeast	Lake County	5,166±405	$147,321	$456,600	$2,089	62%
Tract 8645.1717097864517	1.8 mi north	Lake County	3,066±485	$205,142	$559,100	$2,015	59%
Tract 8030.1217031803012	2.3 mi southwest	Cook County	2,135±258	$85,865	$295,200	$1,763	55%
Tract 8030.1017031803010	1.4 mi southwest	Cook County	4,351±335	$119,125	$380,600	$1,700	52%
Tract 8645.1217097864512	3.0 mi north	Lake County	4,752±496	$200,670	$678,000	$1,415	38%
Tract 8645.1517097864515	1.8 mi west	Lake County	3,045±312	$174,545	$476,300	$2,919	37%
Tract 8645.2317097864523	1.9 mi east	Lake County	4,084±425	$97,672	$330,900	$1,860	37%
Tract 8030.0717031803007	2.4 mi south	Cook County	5,092±609	$91,553	$384,300	$1,996	31%
Tract 8024.0317031802403	1.7 mi south	Cook County	1,517±177	$87,525	$244,000	$1,951	25%
Tract 8645.2117097864521	2.2 mi northeast	Lake County	2,502±316	$146,397	$606,500	$3,365	23%
Tract 8645.2417097864524	2.3 mi east	Lake County	3,736±785	$114,875	$771,200	$2,384	23%
Tract 8645.1417097864514	2.8 mi north	Lake County	2,749±281	$134,076	$508,000	$2,569	22%
Tract 8025.0317031802503	2.4 mi south	Cook County	7,232±1,452	$106,076	$274,800	$1,834	21%
Tract 8024.0417031802404	1.6 mi southeast	Cook County	7,892±870	$81,371	$192,600	$1,921	8%
Tract 8030.0517031803005	2.8 mi southwest	Cook County	2,860±469	$133,083	$367,900	$1,439	7%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files · Census block assignment files

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections