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