| State: | AR |
| Type: | AR |
| Route: | 231 |
| Length Mi1: | 5.79 |
| Length Ref1: | [1] |
| Direction A1: | South |
| Direction B1: | North |
| Length Mi2: | 3.02 |
| Direction A2: | South |
| Direction B2: | North |
| Terminus A2: | near O'Kean |
| Terminus B2: | at Sharum |
| Length Mi3: | 6.12 |
| Direction A3: | South |
| Direction B3: | North |
| Counties: | Lawrence, Randolph |
| Previous Type: | AR |
| Previous Route: | 230 |
| Next Type: | AR |
| Next Route: | 232 |
Highway 231 (AR 231, Ark. 231, and Hwy. 231) is a designation for three north–south state highways in northeast Arkansas. All three segments serve rural, agricultural areas in the Arkansas Delta. One segment of 5.79miles runs north from U.S. Route 412 (US 412) to Highway 34.[2] A second route of 3.02miles begins at Highway 90 near O'Kean and runs north to Highway 304 at Sharum. A third segment of 6.12miles begins at Highway 251 and runs to Highway 93.[3] All routes are maintained by the Arkansas State Highway and Transportation Department (AHTD).
The highway begins at U.S. Route 412 (US 412) east of Walnut Ridge near the Cache River and the Green County line. Highway 231 runs north through an agricultural area before turning northwest and intersecting the Union Pacific Railroad line, which parallels Highway 34 through the region. Shortly after this at-grade crossing, Highway 231 terminates at Highway 34.
Highway 231 begins in the southeast corner of Randolph County near the city of O'Kean at an intersection with Highway 90. The minor connector route runs due north along a section line to Highway 304, where it terminates near the unincorporated community of Sharum. The highway serves an agricultural area near the Black River.
Highway 231 begins at Highway 251 several miles northwest of Pocahontas near the Missouri state line. Odd-numbered Arkansas state highways are traditionally north–south routes, and as a result, are usually signed north–south even if the actual roadway alignment is east–west. This segment of Highway 231 runs west, passing through the unincorporated community of Hamil, to Highway 93, where it terminates.
|-| colspan= 6 align=center | Highway 231 begins near O'Kean|-| colspan= 5 align=center | Highway 231 begins in northern Randolph County
The segment between O'Kean and Sharum was adopted as a state highway by the Arkansas State Highway Commission on March 28, 1973.[4] A section between Warm Springs and Middlebrook was also created at the same meeting.[5] A section near College City between US 67 and the Walnut Ridge Industrial Park was added as a state highway on April 9, 1980.[6] The section between Warm Springs and Middlebrook was swapped for the section between Highway 251 and Highway 93 at the request of the Randolph County Judge on November 6, 1980.[7]
| State: | AR |
| Route: | 231 |
| Type: | AR |
| Length Mi: | 7.5 |
| Length Round: | 1 |
| Formed: | March 28, 1973 |
| Deleted: | November 6, 1980 |
| Location: | Middlebrook to Warm Springs |
Highway 231 (AR 231, Ark. 231, and Hwy. 231) is a former state highway in Randolph County, Arkansas. Created in 1973 and deleted in 1980, the route was approximately 7.5miles in length. The highway ran from Highway 115 near Middlebrook west to Highway 251 at Warm Springs.[5]
| State: | AR |
| Route: | 231 |
| Type: | AR |
| Length Mi: | 1.02 |
| Length Round: | 2 |
| Deleted: | yes |
| Location: | College City |
Highway 231 (AR 231, Ark. 231, and Hwy. 231) is a former state highway in Lawrence County, Arkansas. Created in 1980, the route was approximately 1.02miles in length.[6] The highway ran from US 67 near College City to the Walnut Ridge Industrial Park.[5]