Fairfield County is the southwestern-most and most populous
county of the
U.S. state of
Connecticut. As of the
2010 census, the county's population was 916,829, estimated to have increased by 3.1% to 945,438 in 2014. The county contains four of the state's largest cities (
Bridgeport (1st),
Stamford (3rd),
Norwalk (6th) and
Danbury (7th)), whose combined population of 433,368 is almost half the county's.