10/12/2010 09:09 am ET Updated May 25, 2011

Longmont Sees Most Significant Growth In Foreign-Born Residents

Longmont, Colorado had the highest increase in foreign-born population of any major city in Colorado, according to recently-released data from the Census Bureau's American Community Survey.

An estimated of 17.1 percent of the city's population was foreign-born in 2009, compared to just 10.6% nine years earlier.

Despite a population growth of about 610,000 people from 2000 to 2009, Colorado as a whole actually saw a decrease in the number of immigrant living in the state. The number of foreign-born residents who were not citizens also declined by about 15% in from 2008-2009.

Aurora had the highest immigrant population in 2009, with 21.9% of its roughly 323,000 citizens born in another country. Pueblo had the smallest immigrant population at just 4.7%.

Check out which cities in Colorado have the highest immigrant populations:

15 Colorado Cities' Census Population Data