| State: | AR |
| Type: | AR |
| Route: | 4 |
| Map: | Arkansas 4.png |
| Established: | 1926 |
| Length Mi1: | 2.99 |
| Length Ref1: | [1] |
| Direction A1: | West |
| Direction B1: | East |
| Terminus A1: | at the Oklahoma state line |
| Terminus B1: | at Cove |
| Length Mi2: | 22.1 |
| Direction A2: | West |
| Direction B2: | East |
| Terminus A2: | in McGehee |
| Terminus B2: | at Rohwer |
| Previous Type: | AR 1926 |
| Previous Route: | 3 |
| Next Type: | AR |
| Next Route: | 5 |
| Counties: | Polk, Desha |
Arkansas Highway 4 (AR 4) is a designation for two state highways in Arkansas. One segment of 2.99miles runs from the Oklahoma state line east to US 59/US 71 at Cove.[2] A second segment of 22.1miles runs from US 278 in McGehee east to Highway 1 at Rohwer.[3] The two routes were formerly connected until a portion of approximately 230miles was redesignated US 278 in 1998. The eastern segment is part of the Great River Road.
Highway 4 begins at the Oklahoma state line as a continuation of OK-4 and runs east to Cove. The route then meets US 59/US 71 and ends.[2] Highway 4 formerly continued along US 59/US 71 south to Wickes, then across the state along present US 278.
The route begins east of McGehee at US 65/US 165/US 278. Highway 4 winds east past the Delta Country Club and Trippe Holly Grove Cemetery before curving due east toward Arkansas City. The route runs east to Arkansas City. At Arkansas City, the route has its only spur route, which serves the historic part of town, while Highway 4 turns north. The highway runs along the Mississippi River briefly before terminating at Highway 1.[3]
| State: | AR |
| Route: | 4 |
| Type: | AR-Spur |
| Length Mi: | 1.04 |
| Length Round: | 2 |
| Location: | Arkansas City |
Arkansas Highway 4 Spur is a spur of 1.04miles in Arkansas City.[3]
| State: | AR |
| Route: | 4 |
| Type: | AR-Bus |
| Length Mi: | 6.1 |
| Length Round: | 1 |
| Deleted: | 1998 |
| Formed: | May 28, 1976[4] |
| Location: | Camden |
Arkansas Highway 4 Business was a business route of 2.97miles in Camden; it was renamed US 278B in the 1998 redesignation. The route began on Washington Street near the Camden Country Club and terminated at US 79B.[5]
Arkansas Highway 4 Spur was a spur route in Camden, following the under-construction bypass. The route was redesignated as Highway 4 in 1976.
| State: | AR |
| Route: | 4 |
| Type: | AR-Bus |
| Length Mi: | 3.8 |
| Length Round: | 1 |
| Deleted: | 1998 |
| Location: | Warren |
Arkansas Highway 4 Business was a business route of 3.78miles in Warren; it was renamed US 278B in the 1998 redesignation.