McCullom Lake is a village in McHenry County, Illinois, United States. Per the 2020 census, the population was 988. Geography McCullom Lake is located at (42.3686295, -88.2968581). According to the 2010 census, McCullom Lake has a total area of , all land. McHenry occupies the southeast shore. The Lake is well known locally for excellent ice fishing. Shallow weeds in the late summer time at the McCullom Lake beach, (not McHenry's beach) make its beach dangerous (drownings have occurred) and have limited game fishing. Major streets McCullom Lake Road Demographics 2020 census 2000 Census As of the census of 2000, there were 1,038 people, 382 households, and 273 families residing in the village. The population density was . There were 418 housing units at an average density of . The racial makeup of the village was 96.44% White, 0.87% African American, 0.48% Native American, 0.29% Asian, 0.10% Pacific Islander, 1.25% from other races, and 0.58% from two or more races. Hispanic or Latino of any race were 4.24% of the population. There were 382 households, out of which 38.0% had children under the age of 18 living with them, 56.3% were married couples living together, 9.4% had a female householder with no husband present, and 28.5% were non-families. 22.8% of all households were made up of individuals, and 5.2% had someone living alone who was 65 years of age or older. The average household size was 2.72 and the average family size was 3.22. In the village, the population was spread out, with 28.0% under the age of 18, 9.0% from 18 to 24, 35.9% from 25 to 44, 19.7% from 45 to 64, and 7.4% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 100.0 males. For every 100 females age 18 and over, there were 104.1 males. The median income for a household in the village was $54,500, and the median income for a family was $59,423. Males had a median income of $40,238 versus $26,100 for females. The per capita income for the village was $20,350. About 5.2% of families and 5.5% of the population were below the poverty line, including 8.1% of those under age 18 and 1.8% of those age 65 or over. Class action lawsuit In April 2006, three former next-door neighbors who contracted brain cancer filed a class action lawsuit against several