Mississippi County Airport (ICAO: KCHQ, FAA LID: CHQ) is a public use airport in Mississippi County, Missouri, United States.

It is owned by the Mississippi County Commission and located four nautical miles (5 mi, 7 km) south of the central business district of Charleston, Missouri.

[3][4] Mississippi County Airport covers an area of 100 acres (40 ha) at an elevation of 313 feet (95 m) above mean sea level.

It has one runway designated 18/36 with an asphalt surface measuring 3,196 by 60 feet (974 x 18 m).

For the 12-month period ending June 30, 2009, the airport had 1,215 aircraft operations, an average of 101 per month: 99% general aviation and 1% military.