Lake County is situated in the northeastern corner of the U.S. state of Illinois, along the shores of Lake Michigan. As of the 2020 census, it has a population of 714,342, making it the third-most populous county in Illinois. Its county seat is Waukegan, the tenth-largest city in Illinois. The county is primarily suburban, with some urban areas and some rural areas. Due to its location, immediately north of Cook County, Lake County is one of the collar counties of the Chicago metropolitan area. Its northern boundary is the Wisconsin state line.
Arlington Heights is a municipality in Cook County in the U.S. state of Illinois. A suburb of Chicago, it lies about 25 miles (40 km) northwest of the city's downtown. Per the 2020 Census, the population was 77,676. Per the 2010 Census, it is the most populous community in the United States that is incorporated as a "village", and is the 13th most populous municipality in Illinois, although it is not far ahead of its nearby Illinois neighboring villages of Schaumburg and adjacent Palatine.
Brookfield is a village in Cook County, Illinois, United States, located 13 miles (21 km) west of downtown Chicago. Per the 2020 census, the population was 19,476. The city is home to the Brookfield Zoo.
Evergreen Park is a village in Cook County, Illinois, United States. In 2020, the population was 19,943.
Franklin Park is a village in Cook County, Illinois, United States. The population was 18,467 at the 2020 census, up from 18,333 at the 2010 census. It was named for real estate broker Lesser Franklin who bought acres of the area when it was a majority of farming fields.
Hazel Crest is a village in Cook County, Illinois, United States. The population was 13,382 at the 2020 census.
Prospect Heights is a city in Cook County, Illinois, United States and is a suburb of Chicago. Per the 2020 census, the population was 16,058.
Wheeling is a village in Cook and Lake counties in the U.S. state of Illinois. A suburb of Chicago, it is primarily in Cook County, approximately 23 mi (37 km) northwest of downtown Chicago. Per the 2020 census, the population was 39,137. Wheeling is named for Wheeling, West Virginia.
Algonquin is a village in McHenry and Kane counties, Illinois, in the United States. It is a suburb of Chicago, located approximately 40 miles (64 km) northwest of the Loop. As of the 2020 census, the village's population was 29,700.
Kildeer is a village in southwestern Lake County, Illinois, United States, and a suburb of Chicago. Per the 2020 census, the population was 4,091. It has limited development to custom houses on large lots, and has worked to preserve natural features and open space.
Lake Forest is a city located in Lake County, Illinois, United States. Per the 2020 census, the population was 19,367. The city is along the shore of Lake Michigan, and is a part of the Chicago metropolitan area and the North Shore. Lake Forest was founded with Lake Forest College and was laid out as a town in 1857, a stop for travelers making their way south to Chicago. The Lake Forest City Hall, designed by Charles Sumner Frost, was completed in 1898. It originally housed the fire department, the Lake Forest Library, and city offices.
Lake Villa is a village in Lake County, Illinois United States. Per the 2020 census, the population was 8,741. Lake Villa lies within Lake Villa Township and about 50 miles north of Chicago and is part of the United States Census Bureau's Chicago combined statistical area (CSA).
Lake Zurich is a village in Lake County, Illinois, United States, a northwest suburb of Chicago. Per the 2020 census, the population was 19,759. The village is named after a body of water named "Lake Zurich," which is completely located inside the village.
North Barrington is a village in Lake County, Illinois, United States. Per the 2020 census, the population was 3,171.
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.
The Chicago metropolitan area, also colloquially referred to as Chicagoland, is a metropolitan area in the Midwestern United States. Encompassing 10,286 sq mi, the metropolitan area includes the city of Chicago, its suburbs and hinterland, spanning 14 counties in northeast Illinois, northwest Indiana, and southeast Wisconsin. The MSA had a 2020 census population of 9,618,502 and the combined statistical area which spans up to 19 counties had a population of nearly 10 million people. The Chicago area is the fifth largest metropolitan area in North America, the fourth-largest metropolitan area in the United States, the largest within the entire Midwest, and the largest in the Great Lakes megalopolis. Its urban area is one of the forty largest in the world.
The North Shore consists of many affluent suburbs north of Chicago, Illinois, bordering the shore of Lake Michigan. These communities form part of Cook and Lake Counties. Exactly which communities comprise the "North Shore" is often a topic of debate, and some definitions include suburbs which do not border Lake Michigan. In general, Evanston, Wilmette, Kenilworth, Winnetka, Glencoe, Highland Park, Northfield, Highwood, Lake Forest, Northbrook, Deerfield, Glenview, and Lake Bluff are recognized as part of the North Shore.
Lake Zurich High School, LZHS, or Lake Zurich Senior High School is a public four-year high school located in Lake Zurich, Illinois, a northwest suburb of Chicago, in the United States. It is part of Community Unit School District 95, which is home to five elementary schools and two middle schools, primarily taking students from Lake Zurich Middle School North and Lake Zurich Middle School South, but it also takes students from local parochial schools such St. Francis de Sales. Students from most of Lake Zurich, Hawthorn Woods portions of Kildeer, Deer Park, North Barrington and unincorporated areas such as Forest Lake and Echo Lake attend Lake Zurich High School.
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).
Palatine Community Consolidated School District 15, often initialized CCSD15, is a school district in the suburbs of Chicago, Illinois with its headquarters in the Joseph M. Kiszka Educational Service Center in Palatine. It is the second-largest elementary-only school district and 19th-largest in Illinois by student enrollment. It serves all or portions of Palatine, Rolling Meadows, Hoffman Estates, Arlington Heights, Inverness, Schaumburg, and South Barrington.
