In 1997, President Bill Clinton visited Northbrook to congratulate the 8th-grade students of Northfield Township (which is mainly Northbrook) for getting the highest score on a world science test, and for getting the second-highest score on a world math test. Between 1950 and 1980, the town's population rose from 3,319 to 30,735. Northbrook was the first community not bordering Lake Michigan to filter Lake Michigan water for public use. Owing to the suburbanization of the community, the last working farm in Northbrook, the Wayside Farm, was sold and closed in 1987. Geography Northbrook is located at (42.129226, −87.840715). According to the 2021 census gazetteer files, Northbrook has a total area of , of which (or 99.51%) is land and (or 0.49%) is water. Northbrook is generally considered to be a part of the Chicago North Shore. Demographics As of the 2020 census there were 35,222 people, 12,749 households, and 9,347 families residing in the village. The population density was . There were 14,209 housing units at an average density of . The racial makeup of the village was 77.53% White, 0.76% African American, 0.07% Native American, 16.35% Asian, 0.01% Pacific Islander, 0.80% from other races, and 4.49% from two or more races. Hispanic or Latino of any race were 3.41% of the population. There were 12,749 households, out of which 53.66% had children under the age of 18 living with them, 66.61% were married couples living together, 5.79% had a female householder with no husband present, and 26.68% were non-families. 24.98% of all households were made up of individuals, and 17.31% had someone living alone who was 65 years of age or older. The average household size was 3.06 and the average family size was 2.55. The village's age distribution consisted of 20.8% under the age of 18, 5.5% from 18 to 24, 17.5% from 25 to 44, 30.5% from 45 to 64, and 25.6% who were 65 years of age or older. The median age was 49.7 years. For every 100 females, there were 90.0 males. For every 100 females age 18 and over, there were 93.0 males. The median income for a household in the village was $128,883, and the median income for a family was $173,545. Males had a median income of $105,262 versus $53,061 for females. The per capita income for the village was $72,969. About 1.7% of families and 3.3% of the population were below