- Green Castle Kitchens & Flrng
- Green Cow
- Greencastle Antique Mall
- Greencastle Antrim Area Dev Co
- Greencastle Antrim Middle
- Greencastle Antrim Primary Sch
- Greencastle Baptist Church
- Greencastle Beverage Distr
- Greencastle Bible Church
- Greencastle Boro Maintenance
- Greencastle Boro Office
- Greencastle Childcare & Lrnng
- Greencastle Coffee Roasters
- Greencastle Ctr
- Greencastle Exxon
- Greencastle Eye Care Ctr
- Greencastle Family Dental Care
- Greencastle Family Practice
- Greencastle Foursquare Church
- Greencastle Greens Golf Course
- Greencastle Health Svc
- Greencastle Livestock Market
- Greencastle Lock & Hardware Co
- Greencastle Lube Ctr Inc
- Greencastle Notary Svc
- Greencastle Online Auctions
- Greencastle Police Dept
- Greencastle Presbyterian Chr
- Greencastle Self Storage
- Greencastle Sewer Disposal
- Greencastle Sportsman's Assn
- Greencastle True Value Ctr
- Greencastle Veterinary Hosp
- Greencastle-Antrim Chmbr-Cmmrc
- Greencastle-Antrim Elementary
- Greencastle-Antrim High School
- Greencastle-Antrim School Dist