Iowa County in Iowa covers approximately 588 square miles, which is equivalent to around 376,320 acres.
San Bernardino County covers approximately 20,105 square miles, which is equivalent to 12,868,912 acres.
Tazewell County, Illinois covers approximately 650 square miles, which is equivalent to around 416,000 acres.
Jackson County in Oregon has a total area of approximately 2,797 square miles, which is equivalent to around 1,786,080 acres.
Georgetown County, SC, has a land area of approximately 815 square miles. One square mile equals 640 acres, so Georgetown County consists of roughly 521,600 acres of land.
Hamilton County, Ohio has a total land area of approximately 529 square miles, which is equivalent to around 338,560 acres.
1643 acres to be exact
Lake Red Rock in Marion County is the major lake in Iowa. Its surface area is approximately 15,000 acres.
Chippewa County's area is 645,120 acres.
Pike County, IL's area is 543,380 acres.
The area of Mendocino County, CA is 2,481,900 acres.
Winnebago County, Wisconsin has a total area of 370,560 acres.
Vernon County, Wisconsin's area is 522,240 acres.
Fauquier County, VA covers 416,640 acres.
Jay County, IN covers a total of 245,760 acres.
Somerset County, Maine covers 2,620,160 acres.
Jersey County, IL's area is 241,170 acres.
Charles County, MD's area is 293,120 acres.