Salts and minerals that can conduct electrical impulses in the body. Common human electrolytes are sodium chloride, potassium, calcium, and sodium bicarbonate.
Louisville Population 2017. Lousiville's estimated 2016 population is around 620,000. The most recent census estimates released put the population at 615,366 in 2015, up from 596,823 in 2010. Louisville is the largest city in Kentucky and the 27th most populous city in the United States.
Middletown, Kentucky. Middletown is an independent, home rule-class city in Jefferson County, Kentucky, United States, and a former neighborhood of Louisville. The population was 7,218 at the 2010 census. Eastern High School is located in Middletown. The city is also home to the main campus of the largest church in the state, the Southeast Christian Church.