Prairie Ridge High School

Terra Cotta is an unincorporated community in McHenry County, in the U.S. state of Illinois.

Crystal Lake is one of two stations on Metra's Union Pacific Northwest Line located in Crystal Lake, Illinois. The station is two stops away from the line's terminus at Harvard, and most of the trains on the Northwest Line only run as far as Crystal Lake. A large coach yard is adjacent to the station and has additional storage tracks to store Metra trains overnight, and on holidays and weekends. A Union Pacific maintenance facility and office, some storage tracks for local freight trains and maintenance of way equipment as well as a junction are also located just southeast of here. The branch line to McHenry splits off at this junction. The station is 43.3 miles (69.7 km) away from Ogilvie Transportation Center. Parking is available at the station. As of 2018, Crystal Lake is the 36th busiest of the 236 non-downtown stations in the Metra system, with an average of 1,138 weekday boardings.As of May 30, 2023, Crystal Lake is served by 52 trains (27 inbound, 25 outbound) on weekdays, by 30 trains (15 in each direction) on Saturdays, and by 20 trains (nine inbound, all 11 outbound) on Sundays. On weekdays, 13 inbound trains originate from Crystal Lake and 12 trains terminate here, with five inbound trains originating and five outbound trains terminating here on Saturdays, and two inbound trains originating and three outbound trains terminating here on Sundays.

The Col. Gustavus A. Palmer House is a historic residence in Crystal Lake, Illinois.

Crystal Lake Central High School, often referred to as "Central" or "CLC," is the oldest of the three high schools in Crystal Lake, Illinois, United States.

Faith Lutheran High School, commonly referred to as Faith or FLHS, was a private high school located in Crystal Lake, Illinois. It was affiliated with the Lutheran Church–Missouri Synod and served students of McHenry County, Illinois. The school opened in 2004 and closed in 2019. The school's colors were black and red and its mascot was the Saints.

Nunda Township is located in McHenry County, Illinois. As of the 2010 census, its population was 38,245 and it contained 14,492 housing units. Nunda Township changed its name from Brooklyn Township on December 28, 1850. Nunda Township shares the distinction with McHenry Township as being the two largest townships by land area in McHenry County, at 48.3 square miles (130 km2) each. Nunda is pronounced locally NUN-duh.

Pingree Road is one of two commuter railroad stations on Metra's Union Pacific Northwest Line in the city of Crystal Lake, Illinois. The station is officially located at 570 Congress Parkway at Pingree Road, and is 41.7 miles (67.1 km) from Ogilvie Transportation Center in Chicago. In Metra's zone-based fare system, Pingree Road is in zone 4. As of 2018, Pingree Road is the 73rd busiest of the 236 non-downtown stations in the Metra system, with an average of 707 weekday boardings.As of May 30, 2023, Pingree Road is served by 58 trains (30 inbound, 28 outbound) on weekdays, by 30 trains (15 in each direction) on Saturdays, and by 20 trains (nine inbound, all 11 outbound) on Sundays. Pingree Road station is the newest station to be constructed on the UP-NW Line, opening on September 7, 2005. It serves as the southern terminus of the McHenry Branch of the UP-NW line. The actual junction between the main branch and McHenry branch is 0.8 miles (1.3 km) northwest of the station. West of the station, the Main Branch becomes the Harvard Branch. Currently, no bus connections are available at this station.

Prairie Grove is a village in McHenry County, Illinois, United States, first incorporated in 1973. Per the 2020 census, the population was 1,963.

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.Ridgefield hosts a small number of antique shops in a small crossroads business district. Ridgefield also has a large grain storage facility and a retail hardware store. Metra commuter trains pass through Ridgefield on their way to Chicago from Woodstock, Illinois without stopping, though there are currently shelved plans to build a station here.

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 George Stickney House or simply Stickney House or Stickney Mansion is located in rural McHenry County, Illinois, in the small village of Bull Valley. The Stickney House is currently the Bull Valley Police Headquarters since 1985. The structure has been listed on the National Register of Historic Places since 1979. The house is widely considered bizarre due to its design, which was based, in part, on George and Sylvia Stickney's belief in Spiritualism. This house continues to be the subject of several ghostlore stories.

WAIT (850 kHz) was an AM radio station licensed to Crystal Lake, Illinois, and serving the Chicago metropolitan area. It was licensed by the Federal Communications Commission (FCC) as a Class D station and broadcast only during daytime hours, signing off at sunset to protect KOA in Denver, the clear-channel station on 850 kHz. The station had a highly directional pattern, with nulls to the northeast and southwest, to protect WGVS in Muskegon, Michigan, and KFUO in Clayton, Missouri. Because of its northwest suburban location and directional pattern, WAIT could be heard in Rockford, Illinois, and Janesville, Wisconsin, in addition to the Chicago media market.