| Jersey Mike's Subs | 105 Drury Drive
La Plata, MD 20646 | (240) 901-8021 | |
| Jillian's Fare | Various Locations in Charles County
La Plata, MD 20646 | | |
| Jimmy Johns Gourmet Sandwiches | 2481 Crain Highway
Waldorf, MD 20603 | (240) 210-8227 | |
| John Hanson Middle School | 12350 Vivian Adams Drive
Waldorf, MD 20601 | | |
| Joson's Fine Jewelry | 113 La Grange Ave
La Plata, MD 20646 | (301) 934-7188 | |
| Joyful Studio | 115 La Grange Ave Suite A
La Plata, MD 20646 | | |
| Judy's Food Express | Various Locations
La Plata, MD 20646 | | |
| Julito's Peruvian Chicken | 3380 Middletown Road Suite 103
Waldorf, MD 20603 | (301) 235-9813 | |
| K&T Kettle Corn and Produce | La Plata Farmer's Market
La Plata, MD 20646 | | |
| Kabob BQ | 2246 Crain Hwy
Wal, MD 20601 | (240) 518-8835 | |
| Kanto Games and Collectibles | 6 Saint Mary's Ave Suite 100A
La Plata, MD 20646 | | |
| Kaow Thai Restaurant | 68 Drury Drive
La Plata, MD 20646 | (240) 901-2910 | |
| Ka'Ribbean Fire | 13 Shining Willow Way
La Plata, MD 20646 | | |
| Ka'Ribbean Fire | 13 Shining Willow Way
La Plata, MD 20646 | | |
| KFC, Bryans Road | 302 Canberra Way
Bryans Road, MD 20616 | (301) 375-6186 | |
| KFC, La Plata | 6665 Crain Highway
La Plata, MD 20646 | (301) 934-0374 | |
| KFC, Waldorf | 2180 Crain Highway
Waldorf, MD 20601 | (301) 645-7300 | |
| Kobe Bar & Grill Restaurant | 171 Smallwood Village Center
Waldorf, MD 20603 | (301) 932-3888 | |
| Kodori Japanese Restaurant | 2792 Crain Highway
Waldorf, MD 20601 | (301) 374-9955 | |
| Kona Ice | Various Locations in Charles County
La Plata, MD 20646 | | |