Jacksonville, colloquially nicknamed Jax, is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of northeastern Florida. It is the seat of government of Duval County, with which the city consolidated in 1968. It is the tenth-most populous U.S. city and the largest city in the Southeast, with a population of 949,611 at the 2020 U.S. census. The Jacksonville metropolitan area, at over 1.76 million residents, is the fourth-largest metropolitan area in Florida and 38th-largest in the United States. City-county consolidation greatly increased Jacksonville's official population and extended its boundaries, placing most of Duval County's population within the new municipal limits; Jacksonville grew to 900 square miles. It is the largest city by total area, land and water, in the contiguous United States.

Country: United States
State: Florida
County: Duval
Founded: June 15, 1822
Incorporated: February 09, 1832
Consolidated: October 01, 1968
Named for: Andrew Jackson
Type: Strong Mayor–Council
Body: Jacksonville City Council
Mayor: Donna Deegan (D)
Water: 13.34%
Population (2020): 949,611
Estimate (2025): 1,017,689
Rank: 31st in North America, 10th in the United States, 1st in Florida
Urban: 1,247,374 (US: 40th)
Metro: 1,733,937 (US: 38th)
Time zone: Eastern (EST) (UTC−5)
Summer (DST): EDT (UTC−4)
ZIP Codes: 32099, 32201–32212, 32214–32241, 32244–32247, 32250, 32254–32260, 32266, 32267, 32277, 32290
FIPS code: 12-35000
GNIS feature ID: 2404783
Website: City of Jacksonville
Wikidata description: city in Duval County, and largest city in State of Florida, United States
Wikidata id: Q16568
Wikidata aliases: Array
Source
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