Mercer County Regional Airport (ICAO: KHZE, FAA LID: HZE) is a public use airport in Mercer County, North Dakota, United States.

It is located two nautical miles (4 km) east of the central business district of Hazen, North Dakota.

[2] It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.

[4][5] Mercer County Regional Airport covers an area of 200 acres (81 ha) at an elevation of 1,814 feet (553 m) above mean sea level.

[1] For the 12-month period ending July 8, 2011, the airport had 930 aircraft operations, an average of 77 per month: 75% general aviation, 22% air taxi, and 3% military.