S
- (Baxter County) Sheppards Island
- (Ashley County) Sheridan Square
- (Arkansas County) Sherwood
- (Baxter County) Sherwood Acres
- (Ashley County) Sherwood Forest
- (Baxter County) Sherwood Forest Mobile Home Park
- (Ashley County) Sherwood Park
- (Ashley County) Shenandoah
- (Ashley County) Shingle Landing
- (Ashley County) Shipley Heights
- (Ashley County) Shipley Ridge
- (Ashley County) Shipley Woods
- (Baxter County) Shockley Manor
- (Baxter County) Shockley Heights
- (Arkansas County) Shorts Corner
- (Baxter County) Shortly
- (Baxter County) Shuffelt Acres
- (Ashley County) Silver Brook
- (Arkansas County) Shorts Landing
- (Ashley County) Silver Springs
- (Baxter County) Silver View Farm
- (Ashley County) Silverbrook
- (Ashley County) Silverbrook Gardens
- (Ashley County) Silverside
- (Ashley County) Silverside Heights
- (Ashley County) Silview
- (Ashley County) Simonds Gardens
- (Arkansas County) Six Forks
- (Ashley County) Skyline Crest
- (Ashley County) Skyline Orchard