Grant County, Arkansas

County of Grant
Grant County Courthouse in Sheridan
Location within the U.S. state of Arkansas
Coordinates: 34°17′40″N 92°25′54″W / 34.294444444444°N 92.431666666667°W / 34.294444444444; -92.431666666667
Country United States
State Arkansas
EstablishedFebruary 4, 1869
Named afterUlysses S. Grant
SeatSheridan
Largest citySheridan
Area
 • Total
633 sq mi (1,640 km2)
 • Land632 sq mi (1,640 km2)
 • Water1.1 sq mi (2.8 km2)  0.2%
Population
 (2020)
 • Total
17,958
 • Estimate 
(2024)
18,546
 • Density28.4/sq mi (11.0/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district4th
Websitewww.grantcountyar.com

Grant County, officially the County of Grant, is a county in the U.S. state of Arkansas. Its population was 17,958 at the 2020 United States census. The county seat is Sheridan. Grant County is included in the Little Rock-North Little Rock-Conway metropolitan area. It is an alcohol prohibition or dry county.