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.
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).
According to zip-codes.com, Vinton County is the county in Ohio with the lowest population at 12,806.
Smallest county population wise in Ireland is Leitrim 27-28 thousand.
Robertson County
According to census.gov, the population of Pickaway County Ohio is 53,606.
According to census.gov, the 2007 population estimate for Lorain County, Ohio is 302,260.
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.
In terms of population the largest is Nairobi, the smallest Lamu county. In terms of size the largest is Turkana County about 77000 km2 the smallest Mombasa