Marengo

Population: 7,123
Median household income: $72,586
Median home value: $206,100

Marengo, a community in McHenry County, Illinois, has 7,123 residents. Its median household income of $72,586 runs below the McHenry County figure of $102,836.

From 2019 to 2023, Marengo's population declined 10.6% from 7,969 to 7,123, while its median home value rose 33.7% from $154,200 to $206,100.

The median resident is 33.3 years old. The largest age group is 25 to 34, 17.4% of residents.

Demographics

ACS 2019–2023

Population: 7,123
Median age: 33.3 yrs
Median household income: $72,586
Median home value: $206,100
Median gross rent: $1,077
Housing units: 2,898
Homeownership rate: 68.8%
Bachelor's degree or higher: 16.5%
Unemployment rate: 8.8%

Trends

ACS 5-year · 2019–2023

Population

7,9697,123

Median household income

$63,694$72,586

Median home value

$154,200$206,100

Median gross rent

$912$1,077

Year	Population	Median household income	Median home value	Median gross rent
2019	7,969	$63,694	$154,200	$912
2020	7,871	$69,688	$157,000	$901
2021	7,466	$65,136	$172,800	$963
2022	7,471	$71,196	$188,500	$992
2023	7,123	$72,586	$206,100	$1,077

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 58.8%

5 to 1716.7%

18 to 249.3%

25 to 3417.4%

35 to 449.7%

45 to 547.3%

55 to 6414.2%

65 to 747.3%

75 and over9.3%

	Count	Share
Under 5	626	8.8%
5 to 17	1,190	16.7%
18 to 24	662	9.3%
25 to 34	1,236	17.4%
35 to 44	690	9.7%
45 to 54	522	7.3%
55 to 64	1,011	14.2%
65 to 74	520	7.3%
75 and over	666	9.3%

Race & ethnicity

	Count	Share
White (non-Hispanic)	6,022	84.5%
Black or African American	91	1.3%
American Indian & Alaska Native	0	0.0%
Asian	0	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	142	2.0%
Hispanic or Latino (any race)	868	12.2%

Educational attainment (age 25+)

No high school diploma8.0%

High school graduate39.5%

Some college or associate's36.0%

Bachelor's degree13.6%

Graduate or professional degree2.9%

	Count	Share
No high school diploma	372	8.0%
High school graduate	1,834	39.5%
Some college or associate's	1,671	36.0%
Bachelor's degree	631	13.6%
Graduate or professional degree	137	2.9%

Commute to work

Mean travel time to work: 28 min

Drove alone81.8%

Carpooled10.8%

Public transit0.0%

Walked0.9%

Bicycle0.4%

Worked from home6.1%

Other means0.0%

How workers get to work

	Count	Share
Drove alone	2,743	81.8%
Carpooled	362	10.8%
Public transit	0	0.0%
Walked	29	0.9%
Bicycle	14	0.4%
Worked from home	204	6.1%
Other means	0	0.0%

Travel time

	Count	Share
Under 15 min	737	23.4%
15 to 29 min	991	31.5%
30 to 44 min	885	28.1%
45 to 59 min	239	7.6%
60+ min	296	9.4%

Households

Average household size: 2.53
Poverty rate: 15.6% (1,098 of 7,061)

	Count	Share
Family households	1,722	61.6%
Nonfamily households	1,074	38.4%

Housing

Median year structure built: 1974

Occupancy

	Count	Share
Occupied	2,796	96.5%
Vacant	102	3.5%

Tenure (of occupied units)

	Count	Share
Owner-occupied	1,923	68.8%
Renter-occupied	873	31.2%

1-unit, detached58.7%

1-unit, attached16.0%

2 to 4 units7.7%

5 to 19 units11.0%

20 or more units0.8%

Mobile home & other5.8%

Units in structure

	Count	Share
1-unit, detached	1,700	58.7%
1-unit, attached	464	16.0%
2 to 4 units	223	7.7%
5 to 19 units	318	11.0%
20 or more units	24	0.8%
Mobile home & other	169	5.8%

Geography

Place GEOID: 1746786
Type (LSAD): 25
Land area: 8.9 sq mi
Water area: 0 sq mi
Center point: 42.2465, -88.5975