CASPER, Wyo. (AP) — Wyoming grew more slowly than all but a couple states from 2010 to 2020 and remains the least-populated state in U.S. Census figures released Thursday. 

Only Michigan and Connecticut grew slower than Wyoming. 

Ohio grew at the same rate. Three states — Illinois, Mississippi and West Virginia — lost population. 

The Casper Star-Tribune reports that although Wyoming’s population grew 2.4% to about 577,000 people, only nine of the state’s 23 counties grew. 

Teton and Laramie counties lead Wyoming, both with population growth of 9.6%. 

Once-booming Sublette County in western Wyoming's gas patch had the state's steepest population decline of 15%.

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 </figure>CASPER, Wyo. (AP) — Wyoming grew more slowly than all but a couple states from 2010 to 2020 and remains the least-populated state in U.S. Census figures released Thursday. Only Michigan and Connecticut grew slower than Wyoming. Ohio grew at the same rate. Three states — Illinois, Mississippi and West Virginia — lost population. The Casper Star-Tribune reports that although Wyoming’s population grew 2.4% to about 577,000 people, only nine of the state’s 23 counties grew. Teton and Laramie counties lead Wyoming, both with population growth of 9.6%. Once-booming Sublette County in western Wyoming's gas patch had the state's steepest population decline of 15%.

Census: Wyoming grew slowly and remains US' smallest state