Adams County, Indiana

Not to be confused with Adams, Indiana or Adams Township, Indiana (disambiguation).

Adams County
County
Adams County courthouse in Decatur
Adams County courthouse in Decatur
Map of Indiana highlighting Adams County
Location within the U.S. state of Indiana
Map of the United States highlighting Indiana
Indiana's location within the U.S.
Coordinates: 40°45′N 84°56′W / 40.75°N 84.94°W / 40.75; -84.94
Country United States
State Indiana
FoundedMarch 1, 1836
Named forJohn Quincy Adams
SeatDecatur
Largest cityDecatur
Area
 • Total
339.97 sq mi (880.5 km2)
 • Land339.03 sq mi (878.1 km2)
 • Water0.94 sq mi (2.4 km2)  0.28%
Population
 (2020)
 • Total
35,809
 • Estimate 
(2023)[1]
36,288 Increase
 • Density110/sq mi (41/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district3rd
Websitewww.co.adams.in.us
FIPS No. 001[2]

Adams County lies in northeastern Indiana in the United States and shares its eastern border with Ohio. It was officially established in 1836. The county seat is Decatur.[3] According to the 2020 census, its population was 35,809, an increase of 4.1% from 34,387 in 2010.[4] The county has four incorporated cities and towns with a total population of over 15,000,[5] as well as many small unincorporated communities. The county is divided into 12 townships which provide local services.[6][7] There are four Indiana state roads in the county, as well as three U.S. Routes and one railroad line.[8][9] In 2017, about a quarter of the county's population (estimated 8,600) was Swiss Amish that settled in the Southern half of the county around Berne.[10]

  1. ^ "QuickFacts: Adams County, Indiana". Census.gov. Retrieved July 7, 2023.
  2. ^ "EPA County FIPS Code Listing". EPA.gov. Retrieved August 12, 2018.
  3. ^ "Find a County – Adams County IN". National Association of Counties. Archived from the original on February 3, 2012. Retrieved October 10, 2011.
  4. ^ "Adams County Census". United States Census Bureau/Indystar. Retrieved October 22, 2021.
  5. ^ Cite error: The named reference census-dp1 was invoked but never defined (see the help page).
  6. ^ "Adams". Indiana Township Association. Archived from the original on March 4, 2016. Retrieved October 10, 2011.
  7. ^ "Duties". United Township Association of Indiana. Retrieved January 6, 2011.
  8. ^ "Indiana Transportation Map 2009–2010" (PDF). Indiana Department of Transportation. 2009. Archived from the original (PDF) on December 15, 2010. Retrieved December 16, 2010.
  9. ^ "State of Indiana 2011 Rail System Map" (PDF). Indiana Department of Transportation. 2011. Archived from the original (PDF) on June 15, 2011. Retrieved June 19, 2011.
  10. ^ Cite error: The named reference update was invoked but never defined (see the help page).