• Ballou Channing
  Southeastern Massachusetts and Rhode Island
   
• Central Midwest
  Illinois, southwest Michigan, upper Michigan, eastern Missouri, eastern Wisconsin, and upper western Indiana
   
• Clara Barton
  Connecticut, and western and central Massachusetts
   
• Florida
  Florida (excluding the panhandle), southern Georgia, Puerto Rico, and the U.S. Virgin Islands
   
• Joseph Priestley
  Delaware, the District of Columbia, Maryland, New Jersey, eastern Pennsylvania, and northern Virginia
   
• Massachusetts Bay
  Northeastern Massachusetts
   
• Metro New York
  New York state from Long Island to Kingston, including metropolitan New York City, northern New Jersey, and southwestern Connecticut, plus two congregations in Pennsylvania
   
• Mid-South
  Alabama, northwestern and central Georgia, Mississippi, the panhandle of Florida, and First Unitarian Universalist Church in Nashville, TN
   
• Mountain Desert
  Colorado, eastern Idaho, Montana, western Nebraska, New Mexico, western Texas, Utah, and Wyoming
   
• Northern New England
  Maine, New Hampshire, and Vermont
   
• Ohio Meadville
  Most of Ohio, western Pennsylvania, and West Virginia
   
• Pacific Central
  Northern California, Hawaii, and northern Nevada
   
• Pacific Northwest
   Alaska, Idaho, Oregon, and Washington
   
• Pacific Southwest
  Arizona, southern California, and southern Nevada
   
• St. Lawrence
  New York (except New York City and Kingston to Long Island)
   
• Southeast
  North Carolina, South Carolina, Eastern Georgia, Eastern and Central Tennessee, and most of Virginia
   
• Southwestern
  Arkansas, Louisiana, southwestern Missouri, Oklahoma, western Tennessee, Texas, and the Republic of Mexico