Clubs of the Maryland South Delaware Optimist District
Zone 1
- Cumberland Valley Optimist Club, Maryland
- Frederick Optimist Club, Maryland
- Carroll County-Freedom District, Maryland
- Westminister-Gamber-Smallwood, Maryland
- Reisterstown-Owings Mills, Maryland
Zone 2
- Ocean City-Berlin Optimist Club, Maryland
- Salisbury Optimist Club, Maryland
- Easton-Talbot Optimist Club, Maryland
- Kent Island Optimist Club of Queen Anne’s County, Maryland
- Optimist Club of Sussex County, Delaware
Zone 3
- Dundalk, Maryland
- Fort Smallwood Optimist Club, Maryland
- Annapolis Optimist Club, Maryland
- Cherry Hill Optimist Club, Maryland
Zone 4
- Optimist Club of Calvert-Prince Frederick, Maryland
- Mechanicsville Optimist Club, Maryland
- Lexington Park-St. Maries Optimist Club, Maryland
- 7th District Optimist Club, Maryland
- Optimist Club of Solomons, Maryland
- Hollywood-Leonardtown Optimist Club, Maryland
- Optimist Club of St. Charles Waldorf, Maryland
- Huntingtown Optimist Club, Maryland
Zone 5
- Hereford Optimist Club, Maryland
- Cockeysville, Maryland
- The Greater Jacksonville Optimist Club, Inc., Maryland
- Loch Raven Optimist Club, Maryland
- Timonium Optimist Club, Maryland