Illinois / McHenry County

Get McHenry County, IL Demographics

Who knew McHenry County demographics could be so sexy? Check out Census 2010 data and current American Community Survey data for McHenry County, IL. Feast your eyes on statuesque tables, curvacous pie charts and titillating trend lines. We dare you to call McHenry County demographic data boring!

Quick Facts

Population 2010 Census	308,760	#6 in the state
Median Income 2010 for Households	$76,482
Poverty Rate	6.2%
Median Age	38.0 years
Largest Racial or Ethnic Group	White
Sources: Census 2010 SF1 & 2006-2010 American Community Survey 5 year estimates

McHenry County Demographics Summary

population icon With 308,760 people, McHenry County is the 6th most populated county in the state of Illinois out of 102 counties. But watch out, McHenry County, because Winnebago County with 295,266 people and St. Clair County with 270,056 people are right behind you.

In 2010, the median household income of McHenry County residents was $76,482. McHenry County households made slightly more than Will County households ($75,906) and Monroe County households ($68,253) However, 6.2% of McHenry County residents live in poverty.

age icon The median age for McHenry County residents is 38.0 years young.

race icon The largest McHenry County racial/ethinic groups are White (83.7%) followed by Hispanic (11.4%) and Asian (2.5%).

McHenry County Race / Ethnic Groups

Non-Hispanic Population
White	258,584
Black	3,045
American Indian	455
Asian	7,712
Pacific Islander	68
Some Other Race	210
Two or More Races	3,437
Hispanic	35,249
Source: Census 2010 SF1 Table P9 Hispanic or Latino or Not Hispanic or Latino by Race

White
Black
Indian
Asian
Pacific Islander
Some Other Race
Two or More Races
Hispanic

3 Largest McHenry County Race / Ethnic Groups

The McHenry County White population is 258,584 persons or 83.7%.
The McHenry County Hispanic population is 35,249 persons or 11.4%.
The McHenry County Asian population is 7,712 persons or 2.5%.

Note: the US Census Bureau defines race and ethnicity differently from the way most people think about race and ethnicity. In a nutshell, a person's origin (or what used to be called ethnicity) is either Hispanic or Non-Hispanic. And a person's race can be white, black or African American, American Indian or Alaska Native, Asian, Native Hawaiian or Other Pacific Islander, Some Other Race or Two or More Races. For more details about race and origin data, google "US Census Bureau race and origin Census 2010."

McHenry County Median Age

Fellas, you need to start eating your Wheaties™. McHenry County ladies have a higher median age.

Median Age	38.0 years
Median Age - Females	38.8 years
Median Age - Males	37.0 years
Source: Census 2010 SF1 Table P13 Median Age by Male/Female

Under 18 and Over 65 Age Breakdown

With 27.3% of the McHenry County population under 18, McHenry County has more spring chickens than a KFC ® at dinner time.

Persons Under 18	27.3%
Persons Over 65	10.1%
Everyone else	62.6
Source: Census 2010 SF1 Table P12 Male/Female by Age

Under 18
Over 65
Everyone else

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