McHenry County is a county located in the U.S. state of Illinois. According to the 2020 Census, it had a population of 310,229, making it the sixth-most populous county in Illinois. Its county seat is Woodstock. McHenry County is one of the five collar counties of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area. Long known as a center of recreation along with agriculture in the western portion, it has more recently experienced rapid rates of suburbanization, exurbanization and urbanization, but the western portions of the county remain primarily agricultural and rural.
Crystal Lake is a city in McHenry County in the U.S. state of Illinois. Named after a lake 1.6 miles (2.6 km) southwest of the city's downtown, Crystal Lake is 45 miles northwest of Chicago. The population is 40,269 as of the 2020 Census, a 1.2% decrease from 2010. Crystal Lake is the largest city in McHenry County, part of the Chicago metropolitan area.
Crystal Lake South High School, often referred to as "South" or "CLS," is one of three high schools in Crystal Lake, Illinois, and currently has a body of roughly 1916 students. As Crystal Lake's second oldest school, it was constructed from 1976 to 1978 and opened in September 1978 after Crystal Lake Community High School, now Crystal Lake Central High School, split into two schools due to the pressures of the population growth in the communities it served, Crystal Lake, a part of Lake in the Hills and a small portion of Algonquin. South graduated its first class in 1979 - this class consisted of approximately 250 seniors who were transferred from Crystal Lake Central High School. South graduated its first class who attended all four years in 1982.
Area codes 847 and 224 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Illinois. The numbering plan area (NPA) comprises the northeastern part of Illinois and many northern suburbs of Chicago. This includes most of Lake County, the northern part of Cook County, the northern part of Kane County, and a small part of McHenry County.
Cary-Grove High School is a high school in Cary, Illinois, a northwest suburb of Chicago, USA; it is part of Community High School District 155. In 1995, it was the subject of much media attention after the Fox River Grove level crossing accident that killed seven students. In 2006, on the anniversary of the accident, another Cary-Grove student, Justin Glassmyer, was killed at the same crossing.
The Oregon School Activities Association (OSAA) is a non-profit, board-governed organization that regulates high school athletics and competitive activities via athletic conferences in the U.S. state of Oregon, providing equitable competition among its members, both public and private. The OSAA is based in Wilsonville.
The North Suburban Conference (NSC) is an extra-curricular conference of eight high schools located in Lake County, Illinois, in the northern suburbs of Chicago. All of the schools are members of the Illinois High School Association (IHSA).
Huntley High School is a public high school in Huntley, Illinois, United States. The catchment area includes Consolidated School District 158, which includes all of Huntley as well as parts of Lake in the Hills, Algonquin, and other surrounding communities and rural areas.
Prairie Ridge High School, often referred to as "PR," is the newest public high school in Community High School District 155 in Crystal Lake, Illinois, United States. The other three high school in the area include Crystal Lake Central, Crystal Lake South, and Cary-Grove. Prairie Ridge High school opened in 1997 to address the overpopulation of the three area high schools.
Dundee-Crown High School is a high school located in Carpentersville, Illinois, United States, a northwest suburb of Chicago.
Grayslake North High School is a public high school located in Grayslake, Illinois and is part of Grayslake Community High School District 127. The school's enrollment is 1,530.
Johnsburg High School is a public secondary school in Johnsburg, Illinois; it serves grades 9–12 for the Johnsburg Community Unit School District #12.
The Big Northern Conference (BNC) is an organization of ten high schools in northern Illinois. These high schools are members of the Illinois High School Association.
The Three Rivers Conference, also known as the TRAC-8, is a high school conference in northwest Illinois. The conference participates in athletics and activities in the Illinois High School Association. The conference comprises small public, and two private, high schools with enrollments between 200-600 students in portions of Bureau, Henry, Lee, Rock Island, and Whiteside counties.
The West Central Conference is a high school conference in western central Illinois. The conference participates in athletics and activities in the Illinois High School Association. The conference comprises 11 small public high schools and 1 private high school with enrollments between 120-590 students in Adams, Hancock, McDonough, Pike, and Warren counties.
The Little 7 Conference was a high school athletic conference in Illinois. It was officially organized in October 1921 for 1921–1922 school year.
The Kishwaukee River Conference (KRC) is an organization of eight high schools in northern Illinois. These high schools are members of the Illinois High School Association.
The SHARK Conference was a high school conference in north central Illinois and south central Wisconsin. The conference participated in athletics and activities in the Illinois High School Association (IHSA) and the Wisconsin Interscholastic Athletic Association (WIAA). The conference included private and public high schools with enrollments between 75-2,000 students in Boone, DeKalb, Lee, McHenry, Stephenson and Winnebago counties in Illinois and Rock in Wisconsin.
The Northern Lake County Conference (NLCC) is an organization of eight high schools in northern Illinois. These high schools are members of the Illinois High School Association.
The Northwest Suburban Conference (NWSC) was a high school athletic conference in the northwestern suburbs of Chicago, primarily centered around western Lake County and northwestern Cook County. All of the schools were members of the Illinois High School Association (IHSA).
