Harvard is a city located in McHenry County in the northeastern corner of the U.S. state of Illinois, approximately 7 miles (11 km) south of the Illinois/Wisconsin border. The population was 7,996 at the 2000 census. The city is 63 miles (101 km) from the Chicago Loop, and it is the last stop on the Union Pacific/Northwest Line.
As of the census of 2000, there were 7,996 people, 2,610 households, and 1,853 families residing in the city. The population density was 1,498.2 people per square mile (578.1/km²). There were 2,723 housing units at an average density of 510.2 per square mile (196.9/km²). The racial makeup of the city was 76.25% White, 0.85% African American, 0.38% Native American, 1.43% Asian, 0.01% Pacific Islander, 18.76% from other races, and 2.33% from two or more races. Hispanic or Latino of any race were 37.81% of the population.
There were 2,610 households out of which 39.7% had children under the age of 18 living with them, 53.8% were married couples living together, 11.1% had a female householder with no husband present, and 29.0% were non-families. 24.0% of all households were made up of individuals and 10.1% had someone living alone who was 65 years of age or older. The average household size was 3.05 and the average family size was 3.56.