Jefferson County, Alabama

Jefferson County
County
Jefferson County Courthouse in Birmingham
Location within the U.S. state of Alabama
Alabama's location within the U.S.
Coordinates: 33°31′N 86°49′W / 33.52°N 86.81°W / 33.52; -86.81
Country	United States
State	Alabama
Founded	December 13, 1819[1]
Named for	Thomas Jefferson
Seat	Birmingham
Largest city	Birmingham
Area
• Total	1,124 sq mi (2,910 km2)
• Land	1,111 sq mi (2,880 km2)
• Water	13 sq mi (30 km2)  1.1%
Population  (2020)[2]
• Total	674,721
• Density	600/sq mi (230/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Website	jeffconline.jccal.org

Jefferson County is a county in the U.S. state of Alabama.

The county was named after Thomas Jefferson, the third President of the United States. The county has the largest population of any county in Alabama. As of the 2020 U.S. census, 674,721 people lived there.^[2] The largest city in Jefferson County is Birmingham, Alabama.

1. ↑ "Jefferson County Extension Office". Alabama Cooperative Extension System (ACES). Archived from the original on April 16, 2000. Retrieved September 27, 2007.
2. ↑ ^{2.0 2.1} "QuickFacts: Jefferson County, Alabama". United States Census Bureau. Retrieved August 8, 2023.