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Marengo, Illinois Population 2021

7,375

Marengo is a city located in McHenry County Illinois. With a 2020 population of 7,375, it is the 272nd largest city in Illinois and the 3834th largest city in the United States . Marengo is currently declining at a rate of -0.42% annually and its population has decreased by -3.57% since the most recent census, which recorded a population of 7,648 in 2010. Marengo reached it's highest population of 7,673 in 2010. Spanning over 8 miles, Marengo has a population density of 935 people per square mile.

The average household income in Marengo is $80,315 with a poverty rate of 13.37%. The median rental costs in recent years comes to $912 per month, and the median house value is $154,200. The median age in Marengo is 36.7 years, 36.4 years for males, and 36.9 years for females.

Marengo Demographics

According to the most recent ACS, the racial composition of Marengo was:

White: 95.43%
Black or African American: 2.25%
Two or more races: 1.17%
Other race: 1.15%
Native American: 0.00%
Asian: 0.00%
Native Hawaiian or Pacific Islander: 0.00%

The current population of Marengo, Illinois is 7,375 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 7,468.The last official US Census in 2010 recorded the population at 7,648.

Marengo, Illinois Population 2021

Population by Race

Race	Population	Percentage
White	7,605	95.43%
Black or African American	179	2.25%
Two or More Races	93	1.17%
Some Other Race	92	1.15%

Marengo Population by Race

Marengo Population Pyramid $2021

Marengo Population by Age

Marengo Renter vs Owner Occupied by Household Type

Marengo Household Types

Type	Owner	Renter
Married	86.9%	13.1%
All	69.8%	30.2%
Non Family	64.3%	35.7%
Female	42.9%	57.1%
Male	35.5%	64.5%

69.8%

Rate of Home Ownership

Marengo Households and Families

Type	Count	Average Size	Owned
All	2,978	2.66	69.8
Married	1,416	3.48	86.9
Non Family	924	1.14	64.3
Female	396	2.96	42.9
Male	242	3.1	35.5

3.18

Average Family Size

2.66

Average Household Size

Marengo Households by Type

Education Attained	Count	Percentage
Less Than 9th Grade	203	3.87%
9th to 12th Grade	247	4.71%
High School Graduate	2,039	38.91%
Some College	1,288	24.58%
Associates Degree	336	6.41%
Bachelors Degree	703	13.42%
Graduate Degree	424	8.09%

Marengo Educational Attainment by Sex (over 25)

Marengo Educational Attainment by Race

Race	Total	High School	Bachelors
White	4,253	4,014	974
Hispanic	868	666	153
Black	68	59
Other Race	64	64
2+ Races	61	61

The highest rate of high school graduation is among other race people with a rate of 100.00%.

The highest rate of bachelors degrees is among white people with a rate of 22.90%.

Marengo Educational Attainment by Race

Name	Average	Male	Female
Overall	$43,520	$52,434	$26,728
Less Than 9th Grade	$21,506	$26,058	$20,446
High School Graduate	$34,673	$45,382	$19,934
Some College	$51,452	$60,270	$30,708
Bachelors Degree	$53,490	$54,948	$42,045
Graduate Degree	$69,426	$68,322	$71,771

$43,520

Average Earnings

$52,434

Average Male

$26,728

Average Female

Marengo Earnings by Educational Attainment

Marengo Language by Age

Marengo Language

87.26% of Marengo residents speak only English, while 12.74% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 10.92% of the population.

Marengo Language

Marengo Poverty by Race

Name	Total	In Poverty	Poverty Rate
White	6,196	739	11.93%
Hispanic	1,391	217	15.60%
Other	92	61	66.30%
Black	170	49	28.82%
Multiple	93	43	46.24%

13.37%

Overall Poverty Rate

11.93%

Male Poverty Rate

14.81%

Female Poverty Rate

Poverty in Marengo

The race most likely to be in poverty in Marengo is Other, with 66.30% below the poverty level.

The race least likely to be in poverty in Marengo is White, with 11.93% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.37%. Among those working part-time, it was 16.78%, and for those that did not work, the poverty rate was 19.90%.

Marengo Poverty

Name	Poverty
Less Than 9th Grade	19.17%
High School	14.48%
Some College	10.65%
Bachelors or Greater	2.04%

Marengo Poverty Rate by Education

Rate	Poverty
Female Unemployed	66.67%
Female Employed	8.41%
Male Unemployed	4.44%
Male Employed	3.42%

Marengo Poverty Rate by Employment Status and Sex

Marengo Income by Household Type

Name	Median	Mean
Households	$63,694	$80,315
Families	$91,481	$95,591
Married Families	$107,273	-
Non Families	$38,069	$42,704

Income by Household Type

Marengo Marital Status

Marriage Rates

50.1%

Overall Marriage Rate

49.7%

Male Marriage Rate

50.4%

Female Marriage Rate

Marengo Married by Age and Sex

Marengo Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Marengo Marital Status by Race

Marengo Marital Status

504

Number of Veterans

504

Male Veterans

Female Veterans

War	Veterans
Vietnam	102
First Gulf War	79
Korea	56
Second Gulf War	55
World War II

Marengo Veterans by War

Age Group	Veterans
75+	170
35 to 54	140
65 to 74	93
55 to 64	65
18 to 34	36

Marengo Veterans by Age

Name	Veterans	% of Total
White	504	8.94%
Hispanic	80	8.15%

Marengo Veterans by Race

Marengo Veterans by Education

0.00%

Veteran Poverty Rate

26.59%

Veteran Disability Rate

Marengo Veterans by Education

70.9%

Labor Force Participation

69.5%

Employment Rate

1.9%

Unemployment Rate

Marengo Employment by Age

Marengo Employment by Race

Marengo Employment by Education

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

75.04%

Born in Marengo

91.98%

Native Born

8.02%

Foreign Born

2.90%

Non Citizen

5.12%

Naturalized

Place of Birth

91.98% of Marengo residents were born in the United States, with 75.04% having been born in Illinois. 2.90% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Marengo Place of Birth

Year	Population	Growth	Annual Growth Rate
2021	7,375	-31	-0.42%
2020	7,406	-31	-0.42%
2019	7,437	-31	-0.42%
2018	7,468	2	0.03%
2017	7,466	-12	-0.16%
2016	7,478	-36	-0.48%
2015	7,514	-26	-0.34%
2014	7,540	-31	-0.41%
2013	7,571	-47	-0.62%
2012	7,618	-25	-0.33%
2011	7,643	-30	-0.39%
2010	7,673	1,318	1.90%
2000	6,355	1,587	2.91%
1990	4,768	407	0.90%
1980	4,361	126	0.29%
1970	4,235	667	1.73%
1960	3,568	842	2.73%
1950	2,726		0.00%

Marengo, Illinois Population 2021

Marengo Demographics

Marengo, Illinois Population 2021

Population by Race

Marengo Population by Race

Marengo Population Pyramid $2021

Marengo Median Age

Marengo Adults

Marengo Age Dependency

Marengo Sex Ratio

Marengo Population by Age

Marengo Renter vs Owner Occupied by Household Type

Marengo Household Types

Marengo Households and Families

Marengo Households by Type

Marengo Educational Attainment by Sex (over 25)

Marengo Educational Attainment by Race

Marengo Educational Attainment by Race

Marengo Earnings by Educational Attainment

Marengo Language by Age

Marengo Language

Marengo Language

Marengo Poverty by Race

Poverty in Marengo

Marengo Poverty

Marengo Poverty Rate by Education

Marengo Poverty Rate by Employment Status and Sex

Marengo Income by Household Type

Income by Household Type

Marengo Marital Status

Marriage Rates

Marengo Married by Age and Sex

Marengo Marriage

Marengo Marital Status by Race

Marengo Marital Status

Marengo Veterans by War

Marengo Veterans by Age

Marengo Veterans by Race

Marengo Veterans by Education

Marengo Veterans by Education

Marengo Employment by Age

Marengo Employment by Race

Marengo Employment by Education

Origin of Non-Citizens

Origin of Naturalized Citizens

Place of Birth

Marengo Place of Birth

Marengo Population by Year