The federal population count found that Connecticut gained 499 new residents between July 1, 2016 and July 1, 2017.
Fairfield County’s population gained 730 people for a total of 949,921.
Since 2010, Fairfield County enjoyed a 3.6 percent population gain with 33,075 new residents, the Census found.
Of Connecticut’s eight counties, three - Litchfield, Hartford and New London - lost population.
Hartford is the only other county that has seen a population growth since 2010 with a 0.2 percent increase.
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