States in the West and along the Pacific Coast are adding residents at the fastest pace in the nation, while Northeastern and Rust Belt states continue losing people, according to new Census Bureau estimates.

The yearly population estimates show Utah is growing at a faster rate than any other state in the nation. Between July 2015 and July 2016, the Beehive State added 61,000 new residents, a growth rate of 2.03 percent, the Census Bureau said. Utah's population crossed the 3 million mark for the first time over this period.

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Eight of the 10 fastest-growing states in America are in the Mountain West or the West Coast, including Nevada, Idaho, Washington, Oregon, Colorado, Arizona and Texas. Florida and South Carolina, both Sun Belt states, were the fourth- and 10th-fastest growing states in the nation, respectively.

The District of Columbia added 11,000 new residents in the past year, or 1.6 percent growth, which would put it in ninth.

Eight states saw their populations decline over the last year, most of which are Northeastern and Rust Belt states that have suffered long-term declines in manufacturing, commodity and industrial jobs.

West Virginia lost about 10,000 residents in the last year, or about half of 1 percent of its population. Illinois, Vermont, Connecticut, Pennsylvania and New York also suffered losses of less than half a percent.

Wyoming, where coal companies have closed operations as global commodity prices have plunged, lost about 1,000 residents in the last year. Mississippi's population also declined.

The new numbers continue a long-term trend of Americans moving west and south. Among the 10 fastest-growing states since the last official Census in 2010, nine were in the Mountain West, on the West Coast or along the Sun Belt.

The lone exception is North Dakota, where the exploding hydraulic fracturing industry has sent population numbers skyrocketing. Since 2010, North Dakota's population has boomed by more than 80,000 residents, or about 12 percent.

Washington, D.C., has grown by 76,000 residents in the same six-year period, slightly faster than North Dakota's growth rate.

Texas's population has grown by 10 percent, or about 2.7 million residents, since the last official Census. Utah's has grown nearly 10 percent as well.

Four states have lost residents since 2010: Connecticut, Vermont, Illinois and West Virginia.

As a whole, the United States added an estimated 2.2 million residents between 2015 and 2016, up 0.7 percent to 323 million residents. Since the last Census, the national population has grown by almost 4.5 percent, from 309 million.