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 village in Cook County in the U.S. state of Illinois. A northwestern suburb of Chicago, it lies about 25 miles (40 km) northwest of the city's downtown. As of the 2020 census, the village's population was 77,676, making it the 15th-most-populous municipality in Illinois.
Carol Stream is a village in DuPage County, Illinois, United States, and a suburb of Chicago. Carol Stream was incorporated on January 5, 1959, and named after its founder's daughter. Per the 2020 census, the population was 39,854.
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.
Green Oaks is a village in Libertyville Township, Lake County, Illinois, United States. Per the 2020 census, the population was 4,128.
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.
Libertyville is a village in Lake County, Illinois, United States, and a northern suburb of Chicago. It is located 5 miles (8 km) west of Lake Michigan along the Des Plaines River. The 2020 census population was 20,579. It is part of Libertyville Township, which includes the village, neighboring Green Oaks, and portions of Vernon Hills, Mundelein, unincorporated Waukegan and Lake Forest, and part of Knollwood CDP. Libertyville neighbors these communities as well as Gurnee to the north and Grayslake to the northwest. Libertyville is about 40 miles north of the Chicago Loop and is part of the United States Census Bureau's Chicago combined statistical area (CSA).
Lincolnshire is a village in Vernon Township, Lake County, in the U.S. state of Illinois. The village is a northern suburb of Chicago. Per the 2020 census, the population was 7,940. Lincolnshire was incorporated on August 5, 1957, from the unincorporated Half Day area when land was purchased to build a residential subdivision. The community underwent an aggressive era of expansion from 1983 to the 1990s. The Des Plaines River bisects the village, passing from north to south; Illinois Route 22 also divides the village into two parts, crossing the village from east to west.
Mundelein is a village in Lake County, Illinois, United States and a northern suburb of Chicago. Per the 2020 census, the population was 31,560. It is approximately thirty-five miles northwest of Chicago.
Round Lake is a northern suburb of Chicago in Lake County, Illinois, United States. Per the 2020 census, the population was 18,721.
The Milwaukee District North Line (MD-N) is a Metra commuter rail line in Chicago, Illinois and its northern suburbs, running from Union Station to Fox Lake. Although Metra does not refer to any of its lines by color, the timetable accents for the Milwaukee District North line are pale "Hiawatha Orange" in honor of the Milwaukee Road's Hiawatha passenger trains.
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.
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.
Libertyville High School, or LHS, is a public four-year high school located in Libertyville, Illinois, a northern suburb of Chicago, Illinois, in the United States. Located at the intersection of Park Avenue and Dawes Street, on the shore of Butler Lake, it is part of Community High School District 128, which also includes Vernon Hills High School.
Rondout Valley High School (RVHS) is a public high school located in Accord, New York, United States. Operated by the Rondout Valley School District, the school serves 9th through 12th graders from Marbletown, Rosendale, and Kerhonkson. The high school, which shares its campus with Rondout Valley Middle School, was constructed in 1959. Prior to its opening, high school students in the area attended Kerhonkson High School.
Rondout is an unincorporated community in Lake County, Illinois, United States that first formed around a railroad junction. The area is located within Libertyville Township. As Rondout is an unincorporated community rather than a municipality, it lacks clearly defined borders, and shares postal codes with Lake Bluff, Lake Forest and Libertyville, Illinois. It has its own elementary school which comes under Rondout School District 72. Illinois Route 176 passes east–west through Rondout, serving as the "main street" of the community, where it is also called "Rockland Road".
Community High School District 128 is located in Lake County, Illinois. The district includes Libertyville High School and Vernon Hills High School.
Fox Lake Grade School District 114 is an elementary school district based in unincorporated Lake County, Illinois, east of the village of Spring Grove, and educates students in the northwestern region of Lake County. The communities served by the school district surround Fox Lake. The district is composed of two schools, with one being an elementary school and the other being a middle school.
Wonder Lake is a village in McHenry County, Illinois, United States. It is a commuter village in the Chicago metropolitan area. The population was 3,973 at the 2020 census. However including surrounding unincorporated subdivisions, the population is estimated at 10,000.
