K
- (Baxter County) Knowles Crossroads
- (Ashley County) Kings Croft
- (Baxter County) Kings Crossroads
- (Baxter County) Kings Grant
- (Baxter County) Kings Second Addition
- (Ashley County) Kinston Acres
- (Ashley County) Kirkwood Gardens
- (Arkansas County) Kitts Hummock
- (Ashley County) Klair Estate
- (Ashley County) Keeney
- (Ashley County) Kimberly Chase
- (Arkansas County) Kentbourne II
- (Arkansas County) Knotts Landing
- (Ashley County) Kirkwood
- (Ashley County) Kentmere
- (Baxter County) Keen-Wik
- (Baxter County) Keenwik Sound
- (Baxter County) Keenwik West
- (Arkansas County) Kelly Island
- (Baxter County) Kenmore Park
- (Arkansas County) Kent Island
- (Baxter County) Kawan Acres
- (Baxter County) Kerseys Evergreen Acres
- (Ashley County) Kershaw Acres
- (Ashley County) Keystone
- (Ashley County) Kiamensi
- (Ashley County) Kiamensi Gardens
- (Ashley County) Kiamensi Heights
- (Arkansas County) Kings Cliff Mobile Home Park
- (Arkansas County) Kenton