Capital Region International Airport, formerly Lansing Capital City Airport, is a public, Class C airport located 3 miles (5 km) northwest of downtown Lansing in a portion of DeWitt Township, Michigan that has been annexed to the City of Lansing via Public Act 425. Small areas of the airport are located in Watertown Township, and Delta Township. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non-hub primary commercial service facility.

Clinton County is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 79,128. The county seat is St. Johns. The county was created in 1831 and organized in 1839. It is named after early American politician DeWitt Clinton. Clinton County is included in the Lansing-East Lansing, MI Metropolitan Statistical Area.