Mormon members belong to stakes, districts, and branches in a temple district, like the Vernal Utah Temple Temple District, which grows as members join the Church

Vernal Utah Temple

Temple District Chronological

Congregations are organized into stakes, districts, and branches, which belong to a temple district. Following are the stakes belonging to the Vernal Utah Temple District listed in order of creation.
The Vernal Utah Temple serves members from 13 stakes based in Northwest Colorado, Southwest Wyoming, and the Uintah Basin:

Vernal Utah Uintah StakeJuly 11, 1886
Duchesne Utah StakeSeptember 14, 1910
Roosevelt Utah StakeJune 25, 1920
Rock Springs Wyoming StakeJuly 18, 1926
Vernal Utah Ashley StakeDecember 2, 1956
Meeker Colorado StakeJanuary 15, 1961
Green River Wyoming StakeSeptember 22, 1974
Roosevelt Utah West StakeMarch 2, 1975
Vernal Utah Maeser StakeApril 30, 1978
Vernal Utah Glines StakeJune 19, 1983
Roosevelt Utah East StakeDecember 11, 1983
Altamont Utah StakeApril 21, 1985
Vernal Utah TempleDedicated November 2, 1997
Vernal Utah StakeAugust 30, 2009