Lenawee County Airport (IATA: ADG, ICAO: KADG, FAA LID: ADG) is a county-owned public-use airport located three miles (5 km) southwest of the central business district of Adrian, a city in Lenawee County, Michigan, United States.

LCA's arrival and departure process is centrally located between Ann Arbor and Jackson, Michigan, and Toledo, Ohio.

The taxiway's repaving began in the summer of 2021 and was finished mid-fall, while the runway expected to receive work in the spring of 2022.

[4][5] The airport received additional funding in 2022 as part of the Infrastructure Investment and Jobs Act signed by President Joe Biden.

[6] For the 12-month period ending December 31, 2021, the airport had 18,000 aircraft operations per year, an average of 49 per day, composed entirely of general aviation.