what county is camp gruber, ok located in
Camp Gruber - Cultural Feature (Locale) in Muskogee County. Camp Gruber is a cultural feature (locale) in Muskogee County. The primary coordinates for Camp Gruber places it within the OK 74403 ZIP Code delivery area. In the Maps and Aerial Photos section below, you'll find links to: (1) Local area photos around Camp Gruber, (2) A listing of the nearest hotels to Camp Gruber and (3) Driving Directions to Camp Gruber from almost anywhere.