Mchenry County

Algonquin
Bull Valley
Cary
Crystal Lake
Fox River Grove
Greenwood
Harvard
Hebron
Holiday Hills
Huntley
Johnsburg
Lake In The Hills
Lakemoor
Lakewood
Marengo
McCullom Lake
McHenry
Oakwood Hills
Pistakee Highlands
Prairie Grove
Richmond
Ringwood
Spring Grove
Trout Valley
Union
Wonder Lake
Woodstock
HASC code :US-IL-MY
FIPS 6-4 code :17111
Capital :Woodstock
Largest city :Crystal Lake
Elevation :High : Harvard 966 ft
Low : Lakewood 0 ft
Population :260,077
Land Area :604 sq mi
(1,564 km²)
Density :430.59/sq mi
(166.25/km²)
Time zone :UTC -6
Website :http://www.co.mchenry.il.us