Western and Eastern Recruiting Regions
All enlisted recruits begin their journey in the Corps by coming into contact with one of the Marine Corps Recruiting Districts. The Corps manages the recruiting districts by dividing the country in half using the Mississippi River as a marker. Generally, all areas west of the Mississippi River are covered by the Western Recruiting Region, and all areas east are covered by the Eastern Recruiting Region.
USMC Recruiting District and Recruiting Stations
Each recruiting region is divided into three districts. Then, each district is divided yet again into multiple recruiting stations in cities or populated areas and recruiting sub-stations in smaller less populated areas.
There are estimates that there about 48 recruiting stations in the nation and about 575 recruiting sub-stations. The USMC must cover all areas of the continental US, Hawaii, Alaska, and various US republics like Puerto Rico and Guam.
Check out this Marine Corps Recruiting District Map to see which area of the map your recruiting district is in: