people were hit at grade crossings. In 1995 the C&NW was merged into the Union Pacific. Only Metra trains are operated on this track now; freight operations ended in the late 1980s. Winnetka has three Metra stations: Hubbard Woods, Winnetka, and Indian Hill. The Chicago, North Shore and Milwaukee electric interurban was built through Winnetka and the North Shore in the first decade of the 1900s, and the line through Winnetka was removed in 1955. This is now the Green Bay Trail bicycle path. In 1904, the Winnetka Park District was established, making it the fourth oldest park district in the state of Illinois. Today, the park district maintains and operates 27 parks, five beaches, and golf, tennis, ice skating/hockey, and paddle tennis facilities. The Crow Island School, designed by Eliel & Eero Saarinen and the architectural firm Perkins, Wheeler & Will, was declared a National Historical Landmark in 1990. It was declared 12th among all buildings and the best architectural design of all schools. Ten thousand people attended the opening in 1938. In 1965, Martin Luther King Jr. spoke in Winnetka. A plaque dedicated to him is on the Village Green, a park in the town, where he spoke. As a result of Dr. King's open housing campaign and the North Shore Summer Project, the nonprofit now known as Open Communities was founded. Geography According to the 2010 census, Winnetka has a total area of , of which (or 97.87%) is land and (or 2.13%) is water. Demographics As of the 2020 census there were 12,744 people, 4,204 households, and 3,461 families residing in the village. The population density was . There were 4,459 housing units at an average density of . The racial makeup of the village was 89.17% White, 0.25% African American, 0.04% Native American, 3.52% Asian, 0.02% Pacific Islander, 0.71% from other races, and 6.28% from two or more races. Hispanic or Latino of any race were 4.01% of the population. There were 4,204 households, out of which 94.31% had children under the age of 18 living with them, 77.88% were married couples living together, 3.50% had a female householder with no husband present, and 17.67% were non-families. 16.34% of all households were made up of individuals, and 8.44% had someone living alone who was 65 years of age or older. The average household size was 3.31 and the average family size was 2.94. The village's