Below are a list of the cities located in Jefferson County, KY. There are 73 total unique zip codes in Jefferson County, Kentucky. The time zone for Jefferson County is the Time zone and they follow daylight savings time. The Federal Information Processing System (FIPS) Code for echo $county.' County, '.$state_abbrev ?> is 21111.
The population in Jefferson County, KY is currently 777,874. That is an increase of 4.86% vs the population of 741,096 in 2010.
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