McLean County 1,184 sq mi
what is the largest county in size measuring square miles in illinios
The largest county in Illinois is McLean County with 1,184 square miles.
McLean County which is larger than Rhode Island in total land acres. Its County Seat is Bloomington a city of about 75,000 and is the largest producer of both corn and soybeans of any US County. McLean County is about 1,184 square miles in size.
The largest county in square miles in Kansas is Sedgwick County, with an area of approximately 998 square miles.
The largest is Berkeley County with 1,228 square miles.
Shelby County is the largest county in Tennessee by square miles, covering an area of approximately 784 square miles.
The largest is Nye County with 18,147 square miles.
Osage County is the largest county in Oklahoma, measuring approximately 2,304 square miles.
Cook County, Illinois, USA - 1,635 square miles.
Johnson County, Illinois, USA - 349 square miles.
It is Ware County with 903 square miles.
Keweenaw County - 5,966 square miles.