The Regions of Optimist International shall be as follows:

Region 1: Northeast & Great Lakes

New York – New England Ohio

Central Ontario Midwestern Ontario Southwestern Ontario Michigan

Region 2: Southeast

Caribbean GATE

North Florida South Florida South Carolina

Alabama-Mississippi Louisiana

Region 3: Mid-Atlantic Atlantic Central Kentucky-West Virginia

Maryland-South Delaware Capital-Virginia

North Carolina West North Carolina East

Region 4: Middle America

Indiana North Indiana South Illinois Kansas

East Missouri West Missouri

Region 5: Great Plains Dakotas-Manitoba-Minnesota Wisconsin-Upper Michigan Southern Wisconsin

Iowa Nebraska

Alberta-Montana-Saskatchewan

Region 6: Southwest

Colorado-Wyoming

New Mexico-West Texas TennArk

North Texas/Oklahoma South Texas

Region 7: West Coast Pacific Northwest Pacific Central

Pacific Southwest Pacific Southeast California South Arizona

Region 8: St Lawrence Eastern Ontario Quebec West

Quebec Central Quebec South

Quebec East-North Shore Quebec East-Acadia

( Dec 2007, Mar 2009, Jul 2017, Oct 2023, Nov 2023 )