A Salt Lake Tribune analysis of recently released 2010 Census data shows that such multigenerational households grew by 50 percent in Utah during the past decade — from 25,673 to 38,852. About one of every 21 households in Utah, or 4.6 percent, has three generations or more living together. That is up from 3.7 percent in 2000.
The rate is much higher in some places. Among communities of at least 5,000 residents, Kearns has the highest rate in the state. One of every 10 households there, or 10.2 percent, is multigenerational. Other communities high on that list include: West Valley City, 9.2 percent of all households; Bluffdale, 8.4 percent; Magna, 8.3 percent; and White City, 7.9 percent. Salt Lake Tribune