Lanark 61046 Real EstateLanark is located in Illinois. Lanark, Illinois 61046has a population of 1,630. Lanark 61046 is more family-centric than the surrounding county with 27.28% of the households containing married families with children. The county average for households married with children is 25.28%. The median household income in Lanark, Illinois 61046 is $48,542. The median household income for the surrounding county is $50,555 compared to the national median of $57,652. The median age of people living in Lanark 61046 is 42 years. Lanark WeatherThe average high temperature in July is 84.6 degrees, with an average low temperature in January of 11.7 degrees. The average rainfall is approximately 37.1 inches per year, with 30.4 inches of snow per year. Lanark MapReal estate near LanarkNearby CitiesNearby Cities Homes for Sale |