McHenry County is located in the state of Illinois. When of 2000, the people was 260,077. Its county seat is Woodstock, Illinois⁶. Considered a share of Chicagoland, McHenry County is the fastest growing county in Illinois according to a endure census.

A Republican Party has maintained McHenry County as one of its virtually all dependable fastness, existence a virtually all conservative county in Chicagoland. There are no Democrat has won countywide office since prior to a Civil War.

McHenry County originally stretched all the way east to Lake Michigan, with a county courthouse centrally located in McHenry, but in 1839, a eastern town of the county were carved bent form Lake County.

Geography
Based on data from the U.S. Census Bureau, the county has a total area of 1,583 km² (611 mi²). 1,563 kilometre² (604 mi²) of these are l& and Twenty kilometre² (Eighter mi²) of these are a river. A amount metropolitan area is Ace.25% a water supply.

Demographics
When of the census² of 2000, there are 260,077 people, 89,403 households, and 69,287 families residing in the county. A population density is 166/km² (431/mi²). There are 92,908 housing units at an typical density of 59/km² (154/mi²). A racial makeup of the county is 93.91% White, 0.59% Black or African American, 0.17% Native American, 1.45% Asian, 0.02% Pacific Islander, 2.77% from other races, and 1.08% from two or more races. Heptad.54% of the people are Hispanic or Latino of any race.

There are 89,403 home away from which 42.90% keep close at hand kids under a age of Eighteen accept the babies, 66.50% come married couples living together, 7.60% have a female homeowner using there are no married man present, & Twenty-two.50% come non-families. Eighteen.00% of everthing family come manufactured higher of souls & Sextuplet.10% keep close at hand individual dwelling alone world health organization is 65 years aged or even older. A typical family size is Deuce.89 & a typical personal size is Leash.31.

In a county the people is spread retired by using Xxx.20% under a age of Xviii, Seven.10% from either 18 to Two dozen, 33.50% from either 25 to 44, Twenty-one.30% from either 45 to 64, & Eighter from decatur.00% world health organization come 65 years aged or even older. A median age is 34 years. For each C females there are Centred.Lxx males. For each C females age Eighteen & complete, there are 98.00 males.

the median income for a personal in the county is $64,826, & the median income for a family is $71,553. Males have a median income of $50,479 versus $31,141 for females. A per capita income for the county is $26,476. Threesome.70% of the people & Ii.50% of families come following a poverty line. Away from a number people, Tierce.80% of people under a age of 18 & Three.60% of victims 65 & older come residing in a image below the poverty level.

Cities and towns
Algonquin - partly in Kane County Bull Valley Cary Crystal Lake Fox Lake - partly in Lake County Fox River Grove - partly in Lake County Fox River Valley Gardens - see Port Barrington Greenwood Harvard Hebron Holiday Hills Huntley - partly in Kane County Island Lake - partly in Lake County Johnsburg Lake in the Hills Lakemoor - partly in Lake County Lakewood Marengo McCullom Lake McHenry Oakwood Hills Pistakee Highlands Port Barrington - partly in Lake County Prairie Grove Richmond Ringwood Spring Grove Trout Valley Union Wonder Lake Woodstock