Kentucky Population By County (2018)
Updated on February 23, 2020.

According to the US Census Bureau population estimates, there were 4,468,402 people living in Kentucky in 2018. Jefferson County was the most populated county with 771K residents. Another highly populated county was Fayette County which had 324K residents.

Hover over the counties to see the population of each county. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

Hover/Click on the counties to see the values.
Source: US Census Bureau (2018 Census).
Kentucky Population By County (2018)
Table of
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