Located in the western south-central US, Arkansas ranks 27th in size among the 50 states.
The total area of Arkansas is 53,187 sq mi (137,754 sq km), of which land takes up 52,078 sq mi (134,882 sq km); and inland water, 1,109 sq mi (2,872 sq km). Arkansas extends about 275 mi (443 km) E-W and 240 mi (386 km) N-S.
Arkansas is bordered on the N by Missouri; on the E by Missouri, Tennessee, and Mississippi (with part of the line passing through the St. Francis and Mississippi rivers); on the S by Louisiana; on the SW by Texas (with part of the line formed by the Red River), and on the W by Oklahoma. The total boundary length of Arkansas is 1,168 mi (1,880 km). The state's geographic center is in Pulaski County, 12 mi (19 km) NW of Little Rock.