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COUNTY · 1990 CENSUS

McHenry County

Illinois · 183,241 residents · 603.397 sq mi
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The short version

McHenry County is significantly wealthier than the US average, with a median household income of $43,471. Population has fallen 30% since 2000, a loss of 76,836 residents. Median home value is $110,600. Poverty is rare here, at 3.5% of residents. Households here earn about 35% more than the Illinois median.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 32.4
US median: 33.0
Average education
21% hold a bachelor's degree
US average: 20%
More affordable
home values down 13%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
183,241
−30%vs 2000
vs 260,077 in 2000
1990 – 2025
Population density
304 / sq mi
−30%vs 2000
vs 431 / sq mi in 2000
US average: 221
Median age
32.4
−5%vs 2000
vs 34.2 in 2000
US average: 33.0
Population, 1990 – 2024
170K209K248K287K326K1990201020202024McHenry County
2024313K
1990201020202024
Section 02

Income & economy

Median household income
$43,471
−12%inflation adjusted, since 2000
vs $64,826 in 2000
US average: $30,130
1990 – 2024
Per capita income
$17,271
−35%vs 2000
vs $26,476 in 2000
US average: $14,340
Poverty rate
3.5%
−0.2 ptsvs 2000
vs 3.7% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$110,600
−13%inflation adjusted, since 2000
vs $167,400 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$537
−7%inflation adjusted, since 2000
vs $761 in 2000
US average: $450
Owner-occupied
79.9%
−3.3 ptsvs 2000
vs 83.2% in 2000
20.1% rent
Afford Score
2.5
−1%vs 2000
vs 2.6 in 2000
1990 – 2024
RELATED:See current rent listings in McHenry County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic89.6%(233,026)
Black0.5%(1,379)
Hispanic / Latino7.5%(19,602)
Asian1.4%(3,734)
Other0%
Diversity Score22.1%(57,400)
1990
White, non-Hispanic97.6%(178,873)
Black0.2%(423)
Hispanic / Latino3.2%(5,900)
Asian0.6%(1,187)
Other1.5%(2,758)
Diversity Score13%(23,912)
Diversity Score
13
−41%vs 2000
vs 22 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
21.0%
−6.8 ptsvs 2000
vs 27.7% in 2000
US average: 20.3%
High school or higher
84.5%
−4.7 ptsvs 2000
vs 89.2% in 2000
US average: 75.2%
Graduate degree
6.4%
−1.8 ptsvs 2000
vs 8.2% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
27.8 min
+11%vs 2000
vs 25.2 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to McHenry County

Gloucester County
Pop 312,638
Boulder County
Pop 328,560
Cherokee County
Pop 299,273
Anchorage
Pop 287,155
Places similar to McHenry County
Head to head

Compare McHenry County to nearby counties

MCHENRY COUNTY VS
Boone County
Income$84,571+95%
Home value$216,900+96%
Population53,568−83%
SEE FULL COMPARISON →
MCHENRY COUNTY VS
Walworth County
Income$80,520+85%
Home value$302,700+174%
Population106,127−67%
SEE FULL COMPARISON →
MCHENRY COUNTY VS
Kane County
Income$103,163+137%
Home value$327,000+196%
Population525,757+65%
SEE FULL COMPARISON →
MCHENRY COUNTY VS
DeKalb County
Income$70,724+63%
Home value$243,600+120%
Population101,835−68%
SEE FULL COMPARISON →
Frequently asked

How many people live in McHenry County, Illinois?

McHenry County, Illinois has about 183,241 residents according to the 1990 Census.

What is the median household income in McHenry County, Illinois?

The typical household in McHenry County, Illinois earns about $43,471 a year. Half of households make more than that, and half make less.

Is McHenry County, Illinois expensive?

In McHenry County, Illinois, the median home is worth about $110,600, and the typical rent is about $537 a month.

How educated are people in McHenry County, Illinois?

About 21.0% of adults age 25 and over in McHenry County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in McHenry County, Illinois?

About 3.5% of people in McHenry County, Illinois live below the federal poverty line.

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Explore from here

64 census tracts (top 20 by population)
Census Tract 8715.02Census Tract 8708.09Census Tract 8707.02Census Tract 8712.01Census Tract 8712.06Census Tract 8706.05Census Tract 8710.04Census Tract 8715.01Census Tract 8707.03Census Tract 8713.12Census Tract 8702Census Tract 8712.02Census Tract 8704.02Census Tract 8713.05Census Tract 8711.12Census Tract 8714.02Census Tract 8709.04Census Tract 8711.07Census Tract 8711.05Census Tract 8711.08
18 ZIP codes
ZIP 60014ZIP 60098ZIP 60102ZIP 60050ZIP 60142ZIP 60156ZIP 60013ZIP 60051ZIP 60033ZIP 60152ZIP 60012ZIP 60097ZIP 60081ZIP 60021ZIP 60071ZIP 60034ZIP 60180ZIP 60072
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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