Robertson County
Gallatin County, with a population of 8,589, is the least populated county in Kentucky. The county was founded in 1798 and named for Albert Gallatin, the Secretary of the Treasury under President Thomas Jefferson.
Jefferson County, located in Northern Kentucky, is the largest county in the state, with a population of 741,096. Louisville, located in Jefferson County, is the largest city in Kentucky, with a population of 597,337.
Tyrrell County is the smallest by population. The population of the county is 4.247.
Pickett County. The population was 4,945. It has the smallest population of any county in Tennessee according to the 2000 census
McCormick County is the county with the smallest population. The county has a total area of 394 square miles. The population is approximately 9960 residents.
The smallest county by population in Wyoming is Niobrara County with 2,484 people (2010 US Census).
Smallest county population wise in Ireland is Leitrim 27-28 thousand.
As of 2021, the estimated population of Jefferson County, Kentucky is around 771,158 people.
Pike County is the largest county in Kentucky when referring to land size. When referring to population Jefferson County (Louisville) is largest.
Clark County is Idaho's smallest county based on population with a population of 982 as of the 2010 Census. Payette County is Idaho's smallest county based on area with 408 square miles.
The largest county in Kenya is Turkana County, while the smallest county is Mombasa County.
Lake of the Woods County in Minnesota has the smallest population, with an estimated population of around 3,900 people.