Mormon congregations are geographically organized into stakes, districts, and branches that belong to one Mormon temple like the Washington D.C. Temple

Washington D.C. Temple

Temple District Map

Congregations are organized into stakes, districts, and branches, which belong to a temple district. Following are the locations of the stake and district buildings belonging to the Washington D.C. Temple District.
The Washington D.C. Temple serves members from 41 stakes and 1 district based in Virginia, Pennsylvania, Maryland, West Virginia, Delaware, District of Columbia, and New Jersey: