Year
Dissolved
Dissolved
Year
Formed
Formed
Alabama
Birmingham
Huntsville
1964
Arizona
Arizona
Arkansas
Arkansas
California
Los Angeles
Northern California
1956
San Diego
1960
Colorado
Colorado
District of Columbia
District of Columbia
Florida
Florida
Southeast Florida
1990
Georgia
Atlanta
Idaho
Eastern Idaho
Idaho
Illinois
Central Illinois
Chicago
1957
Indiana
Southern Indiana
Iowa
Iowa
Iowa-Nebraska
1977
1987
Kansas
Mid-Kansas
Witchita
1971
Louisiana
Louisiana
Massachusetts
Northeastern
Michigan
Southeastern
Minnesota
Upper Midwest
Mississippi
Mississippi
Missouri
Central/Eastern
Missouri-Kansas
1967
Nebraska
Nebraska
Nevada
Nevada
New Jersey
Northern New Jersey
New Mexico
Carlsbad
Trinity
1961
New York
Long Island
Metropolitan
1956
Niagara-Finger Lakes
1962
Northeastern NY
1957
North Carolina
Eastern Carolinas
Piedmont Carolinas
1973
Ohio
Northern Ohio
Ohio Section
2002
Southwest
1958
2000
Oklahoma
Oklahoma
Oregon
Oregon
Pennsylvania
Central Pennsylvania
Delaware Valley
1958
Northern Pennsylvania
1984
Pittsburgh
1956
South Carolina
Columbia
Savannah River
1978
Tennessee
Chattanooga
Oak Ridge
1957
Texas
North Texas
South Texas
1973
Virginia
Virginia
Washington
Eastern Washington
Puget Sound
1977
Richland
1958
Wisconsin
Wisconsin
Asia
Japan
Korea
1982
Taiwan
1979
Europe
Austria
Belgium
1970
Central
1970
France
1970
Italy
1971
Swiss
1985
Latin America
Latin AmericanLast updated June 1, 2012, 12:15pm CDT.
