Boone is the only county in Indiana that grew at least as fast in the last three years as it had in the previous decade.
The county’s population grew at an estimated 2.5 percent per year, topped only by Hamilton County’s 4.1 percent annual rate, said Matt Kinghorn, state demographer for the Indiana Business Research Center.
Hendricks County’s population increased at the third-fastest rate, at 2 percent annually, followed by Johnson County, at 1.6 percent.
The figures are based on population as of July 1, 2010, and estimates as of July 1, 2013.
Indiana’s population growth reversed a six-year downward trend over those three years, expanding at .51 percent in 2013. Kinghorn said Indiana was the 30th fastest-growing state in the nation.
Of Boone County’s seven municipalities, four increased in population between 2010 and 2013, the IBRC said.
Lebanon is the only city; Advance, Jamestown, Thorntown, Ulen, Whitestown and Zionsville are classified as towns. A community’s size does not affect the city or town designation; it is instead an indicator of the type of government. Cities have a mayor and common council, while towns have a town council.
Whitestown grew at 36.5 percent, with a 2013 estimated population of 3,950; the town had the highest growth rate in Indiana.
Zionsville’s 7.5 percent growth made it the 15th-fastest. It added 1,742 residents, reaching an estimated 25,115. The town’s geographic area includes what were Eagle and Union townships before the three governments merged functions.
Lebanon Mayor Huck Lewis was skeptical of the IBRC’s estimate that the city lost 22 residents between 2010 and 2013.“We get all sorts of different numbers,” Lewis said. “I usually tell people we’re around 16,000.”The IBRC’s estimate of 15,781 is probably low, he said.“Until a census comes out, you really don’t know,” Lewis said. “The census is the most scientific way, but it’s still not ‘accurate accurate,’” he said.
The IBRC estimated that Jamestown and Thorntown lost population, shrinking by 14 and 32 residents respectively. Ulen, which is an incorporated town although it is now surrounded by Lebanon, added eight residents, reaching 125.