Miami-Dade County
County
Left to right from top down: Downtown Miami; Biscayne National Park; Ocean Drive in Miami Beach; Kaseya Center; Anhinga Trail boardwalk in Everglades National Park
Flag Seal Logo
Nickname(s):  "Dade County", "Dade", "Metro-Dade", "Greater Miami"
Motto:  Delivering Excellence Every Day
Miami-Dade County Location within the United States
Coordinates: 25°36′38″N 80°29′50″W / 25.61058°N 80.497099°W / 25.61058; -80.497099[1]
Country	United States
State	Florida
Region	South Florida
Metro area	Miami
Founded	January 18, 1836
Named for	Francis L. Dade and Miami, derived from the Miami River, and ultimately derived from Mayaimi
County seat and largest city	Miami
Incorporated municipalities	34
Area
• Total	2,431 sq mi (6,297 km2)
• Land	1,899 sq mi (4,918 km2)
• Water	532 sq mi (1,379 km2)  21.9%
Highest elevation [2] (Miami Rock Ridge)	20−25 ft (6–8 m)
Lowest elevation (Atlantic Ocean)	0 ft (0 m)
Population  (2020)[3]
• Total	2,701,767
• Rank	7th in the United States 1st in Florida
• Density	1,408/sq mi (544/km2)
Time zone	UTC−5 (Eastern Time Zone)
• Summer (DST)	UTC−4 (Eastern Daylight Time)
Area codes	305, 786, 645
FIPS code	12086
GNIS feature ID	295755
GDP	$155 billion[4]
Primary Airport	Miami International Airport (MIA)
Website	www.miamidade.gov

Miami-Dade County (formerly known as Dade County and many times referred to as simply Miami or Dade) is a county in the southeastern part of the state of Florida. At the 2020 census, about 2.7 million people lived in the county.^[3] That is more than any other county in Florida. Among all United States counties, it is in seventh place. The county seat is the city of Miami.

• Miami-Dade County Government

• Miami-Dade Public Library System
• Miami-Dade Police Department
• Public Health Trust of Miami-Dade County Archived 2011-09-06 at the Wayback Machine Jackson Memorial Hospital
• Miami-Dade Aviation Department Miami International Airport
• Miami-Dade Water and Sewer Department Archived 2007-12-17 at the Wayback Machine

• Miami-Dade County Public Schools (MDCPS) is the 4th largest school district in the United States. The Miami-Dade School Board is a nine-member publicly elected body responsible for overseeing the administration of the (MDCPS).
• South Florida Water Management District

• Miami-Dade Clerk of Courts
• Miami-Dade Public Defender, 11th Judicial Circuit
• Miami-Dade State Attorney's Office, 11th Judicial Circuit
• Circuit and County Court, 11th Judicial Circuit of Florida Archived 2007-12-11 at the Wayback Machine

• Greater Miami Convention and Visitors Bureau

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