Sheridan at 2441 square miles.
The smallest county in Indiana by both area and population is Ohio County. It occupies 87 square miles, with an estimated population of only 6128 in 2010. It was split off from Dearborn County in 1844.
The total area of Indiana is 36,418 square miles.
The largest county in Delaware by area is Sussex County. It covers approximately 1,196 square miles and is known for its beaches, farmland, and vibrant communities. Sussex County is also popular for tourism, particularly along the Delaware coast.
The state of Indiana has a total land and water area of 23,307,520 acres.
The largest county is Allen (657sq. mi., 1,702 km²)
Clark County, Indiana covers approximately 375 square miles in total.
The largest is Berkeley County with 1,228 square miles.
The largest county in square miles in Kansas is Sedgwick County, with an area of approximately 998 square miles.
Marion County has the largest county population in Indiana.
Shelby County is the largest county in Tennessee by square miles, covering an area of approximately 784 square miles.
The county of Allen in Indiana is 660 square miles in size. The county has a population of just over 350,000 people as of 2014.
The largest is Nye County with 18,147 square miles.
Osage County is the largest county in Oklahoma, measuring approximately 2,304 square miles.
Posey County, Indiana consists of 419 square miles.
It is Ware County with 903 square miles.
Keweenaw County - 5,966 square miles.