District 11, Southern Region’s membership includes 1441 members are organized into 9 Divisions further organized into a total of 55 flotillas. D11SR covers the Pacific southwest region of the United States.
- Division 1: San Diego Area
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- Flotilla 1-1: San Diego Harbor
- Flotilla 1-3: Bahia Mission
- Flotilla 1-4: San Diego
- Flotilla 1-5: Mission Bay
- Flotilla 1-6: Oceanside Harbor
- Flotilla 1-9: Coronado
- Flotilla 1-10: San Diego North County
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- Division 4: San Fernando Valley Area
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- Flotilla 4-1: Northridge
- Flotilla 4-3: Santa Clarita Valley
- Flotilla 4-5: Burbank
- Flotilla 4-6: Mid San Fernando Valley
- Flotilla 4-9: West Valley
- Flotilla 4-10: Bakersfield
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- Division 5: Los Angeles Harbors & South Bay Area
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- Flotilla 5-5: Huntington Beach
- Flotilla 5-9: San Pedro – Port Of Los Angeles
- Flotilla 5-10: Los Angeles / Long Beach Mariners
- Flotilla 5-12: Shoreline Marina
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- Division 6: Orange County Area
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- Flotilla 6-1: Newport Harbor
- Flotilla 6-2: Huntington Harbour
- Flotilla 6-3: Orange Coast
- Flotilla 6-6: North Orange County
- Flotilla 6-8: Dana Point
- Flotilla 6-10: Seal Beach
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- Division 7: Ventura & Santa Barbara Counties Area
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- Flotilla 7-1: Santa Barbara
- Flotilla 7-2: Channel Islands Harbor
- Flotilla 7-3: The Islands
- Flotilla 7-4: Oxnard Maritime
- Flotilla 7-7: Channel Islands Radio
- Flotilla 7-61: Morro Bay Flotilla
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- Division 9: Colorado River ( Ariz, Nev, & Calif.) Area
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- Flotilla 9-2: Lake Havasu City
- Flotilla 9-4: Bullhead City
- Flotilla 9-5: Metro Las Vegas
- Flotilla 9-6: Central Las Vegas
- Flotilla 9-8: Kingman
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- Division 10: Greater Arizona Area
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- Flotilla 10-1: Tucson
- Flotilla 10-2: Page Lake Powell
- Flotilla 10-3: Arizona Band
- Flotilla 10-7: Metro Phoenix
- Flotilla 10-8: East Valley
- Flotilla 10-10: Prescott
- Flotilla 10-11: Desert Lakes
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- Division 11: Riverside & San Bernardino Counties Area
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- Flotilla 11-2: Ontario
- Flotilla 11-5: Tri Lakes
- Flotilla 11-7: Chino Hills
- Flotilla 11-11: Inland Empire
- Flotilla 11-12: Big Bear Lake
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- Division 12: Santa Monica Bay Area
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- Flotilla 12-4: Los Angeles
- Flotilla 12-5: Beach Cities
- Flotilla 12-7: Marina Del Rey
- Flotilla 12-42: Santa Monica Bay
- Flotilla 12-76: Los Angeles Band Flotilla
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