Will County is a county in the northeastern part of the state of Illinois. According to the 2020 census, it had a population of 696,355, an increase of 2.8% from 677,560 in 2010, making it Illinois's fourth-most populous county. The county seat is Joliet. Will County is one of the five collar counties of the Chicago–Naperville–Elgin, IL–IN–WI Metropolitan Statistical Area. The portion of Will County around Joliet uses area codes 815 and 779, while 630 and 331 are for far northern Will County and 708 is for central and eastern Will County.
Forest Lake is an unincorporated community and census-designated place (CDP) in Ela Township of Lake County, Illinois, United States. It is about 35 miles (56 km) northwest of downtown Chicago. Per the 2020 census, the population was 1,784. The community was founded in 1935 as a vacation community for Chicago residents.
Gages Lake is a census-designated place (CDP) in Warren Township, Lake County, Illinois, United States. The population was 10,637 at the 2020 census.
Grandwood Park is a census-designated place (CDP) in Warren Township, Lake County, Illinois, United States. Per the 2020 census, the population was 5,297.
Lake Catherine is an unincorporated community and census-designated place (CDP) in Lake County, Illinois, United States. Per the 2020 census, the population was 1,279.
Long Lake is an unincorporated community and census-designated place (CDP) in Lake County, Illinois, United States. Per the 2020 census, the population was 3,663.
Seabrook is an unincorporated community and census-designated place (CDP) in Prince George's County, Maryland, United States, located approximately 12 miles (19 km) east of Washington, D.C. Per the 2020 census, the population was 19,627. Prior to 2010, Seabrook was part of the Lanham-Seabrook census-designated place.
Wilton Center is an unincorporated community and census designated place (CDP) in southern Will County, Illinois, United States. It is located on flat land 10 miles northeast of Wilmington, 5 miles south of Manhattan, and 8 miles west of Peotone. It has a population of about 150.
Knollwood is an unincorporated community and census-designated place (CDP) in Lake County, Illinois, United States. Per the 2020 census, the population was 2,221. It is located within Shields Township and Libertyville Township. Knollwood shares a ZIP Code with the neighboring village of Lake Bluff, and children attend Lake Bluff schools. The residents of Knollwood were served by the Knollwood Fire Department until October 2018, after the trustees of the Rockland Fire Protection District ended their relationship with the department. Residents now receive fire protection from the Libertyville and Lake Forest fire departments. Police protection is provided by the Lake County Sheriff's Department.
Naylor is an unincorporated community and census-designated place in Lowndes County, Georgia, United States.
Bogue Chitto is an unincorporated community and census-designated place (CDP) in Lincoln County, Mississippi, United States. As of the 2020 census, it had a population of 437. Bogue Chitto is the only municipal hamlet in the state of Mississippi.
Ritchie is an unincorporated community and census designated place (CDP) in southern Will County, Illinois, United States. It is located along Forked Creek and Illinois Route 102, three miles southeast of the city of Wilmington in Wesley Township.
Greenbackville is a census-designated place (CDP) 4.5 miles (5 km) south of Stockton, Maryland in Accomack County, Virginia, located just south of the Maryland state line. Per the 2020 census, the population was 173.
Chemung, elevation 896 feet, is an unincorporated census-designated place in McHenry County, Illinois, United States. Per the 2020 census, the population was 276.
Solon Mills is an unincorporated community and census-designated place in McHenry County, Illinois, United States. Solon Mills is located on U.S. Route 12, 2 miles (3.2 km) southwest of Spring Grove. Solon Mills is part of ZIP code 60071; it once had its own post office with ZIP code 60080 before it closed on September 28, 2002. It was named a CDP before the 2020 census, at which time it had a population of 133.
Ridgefield is an unincorporated community and census-designated place in McHenry County, Illinois, United States. Ridgefield is 3 miles (4.8 km) northwest of Crystal Lake. It was named a CDP before the 2020 census, at which time it had a population of 210.
Harmony is an unincorporated community and census-designated place in McHenry County, Illinois, United States. Harmony is located on U.S. Route 20, 5 miles (8.0 km) west-southwest of Huntley. It was named a CDP before the 2020 census, at which time it had a population of 20.
Big Foot Prairie is an unincorporated community and census-designated place in McHenry County, Illinois, United States. It was named a CDP for the 2020 census, at which time it had a population of 65. It is located in Chemung Township. Big Foot Prairie is located on U.S. Route 14, 5 miles (8.0 km) north of Harvard. The community extends north into Walworth County, Wisconsin, where there is a CDP of the same name in the town of Walworth.
Lockport Heights is an unincorporated community and census-designated place (CDP) in Will County, Illinois, United States. It is in the northern part of the county and is bordered to the west, south, and east by the city of Lockport. Illinois Route 171 runs along the northwest side of the CDP, leading southwest 3 miles (5 km) to the center of Lockport and northeast 17 miles (27 km) to the western edge of Chicago.
Ridgewood is an unincorporated community and census-designated place (CDP) in Will County, Illinois, United States. It is northwest of the center of the county, bordered to the east and west by the city of Joliet. U.S. Route 30 runs along the southern edge of the CDP, leading west 2 miles (3 km) to the center of Joliet and east 3 miles (5 km) to Interstate 80.
