How county population in Connecticut has changed over time

Print More
Population change in Connecticut counties for the last 5 years
County20102011201220132014Trend line5 year difference
New Haven863,367864,049864,031863,016861,277-2,090
New London274,102274,056274,544273,976273,676-426
U.S. Census Bureau

The U.S. Census recently released new figures for Connecticut that shows all counties except Fairfield and Hartford have declined in population between 2010 and 2014.

However, Hartford County’s population dropped in 2014 after growing from 2010 to 2013.

Over in the northwest part of Connecticut, Litchfield has had the most dramatic decrease in population, with almost 5,000 residents leaving.

Setting aside natural population growth figures like births per county, the influx of international residents after 2010 has helped offset domestic residents leaving Connecticut only a bit. Only Fairfield has a net gain in migration because more international residents have replaced the domestic residents who have left.

Cumulative Estimates of the Components of Population Change
Between April 1, 2010 to July 1, 2014
County International migration Domestic migration Total migration
Fairfield 25,079 -11,089 13,990
Hartford 19,558 -21,940 -2,382
Litchfield 653 -4,311 -3,658
Middlesex 1,645 -2,190 -545
New Haven 15,263 -22,099 -6,836
New London 5,269 -7,408 -2,139
Tolland 1,358 -3,295 -1,937
Windham 1,166 -3,520 -2,354
U.S. Census

We got curious to see how these recent numbers reflect on Connecticut’s population over time, so we gathered the data stretching back to 1900. The charts below show that Connecticut has always been growing except for a significant dip between 1980 and 1990. After 1990, growth continued in all counties until 2010 when the population leveled off or dropped — but not as much as it did between 1980 and 1990. Then again, that drop was measured after 10 years. We still have five more years to go until 2020, when we can compare population figures over the same time span.

What do you think?

  • MyOpinion

    I think these graphs and population trends are an immediate sign to get this state back on track, and that means getting rid of the old cronies running it! Fixing the Business’s reasons for leaving, and the families that follow.