Wilmette is a village in New Trier Township, Cook County, Illinois, United States. It is located 14 miles (23 km) north of Chicago's downtown district (or 3 mi/5 km from Chicago's northern border) and has a population of 27,651. Wilmette is considered a bedroom community in the North Shore district. In 2007, Wilmette was ranked as the seventh best place to raise children in the U.S., according to Business Week.

As of the census of 2000, there were 27,651 people, 10,039 households, and 7,730 families residing in the village. The population density was 5,135.8 people per square mile (1,984.4/km²). There were 10,319 housing units at an average density of 1,916.6/sq mi (740.6/km²). The racial makeup of the village was 89.66% White, 0.56% Black, 0.04% Native American, 8.16% Asian, 0.01% Pacific Islander, 0.42% from other races, and 1.15% from two or more races. Hispanic or Latino of any race were 2.08% of the population.

According to a 2007 estimate, the median income for a household in the village was $120,469, and the median income for a family was $149,104. Males had a median income of $97,143 versus $50,007 for females. The per capita income for the village was $55,611. About 1.3% of families and 2.3% of the population were below the poverty line, including 1.6% of those under age 18 and 4.7% of those age 65 or over.

The village ranks 45th on the list of highest-income places in the United States with a population of over 10,000.