S
- (Arkansas County) Sabarto East
- (Ashley County) Saienni Farms
- (Baxter County) Saint George
- (Ashley County) Saint Georges Heights
- (Baxter County) Saint Johnstown
- (Ashley County) Salem Village
- (Ashley County) Salem Woods
- (Baxter County) Sand Dunes Village
- (Baxter County) Sand Hill
- (Baxter County) Sand Island
- (Baxter County) Sandy Beach
- (Baxter County) Sandy Brae
- (Arkansas County) Sandtown
- (Baxter County) Sandy Fork
- (Baxter County) Sandy Landing
- (Baxter County) Sassafras Landing
- (Baxter County) Saulsbury Switch
- (Baxter County) Savannah Place
- (Arkansas County) Schoolview
- (Arkansas County) Schultie Crossroads
- (Baxter County) Scotts Corner
- (Baxter County) Scottsdale Park Mobile Home Park
- (Arkansas County) Scrap Tavern Crossroads
- (Baxter County) Sea Air Mobile Home Park
- (Baxter County) Sea Colony
- (Baxter County) Sea Colony East
- (Baxter County) Sea Del Estates
- (Baxter County) Sea Dunes
- (Baxter County) Sea Farers Village
- (Baxter County) Sea Spray Village