Below are a list of the cities located in Yankton County, SD. There are 6 total unique zip codes in Yankton County, South Dakota. The time zone for Yankton County is the Central Daylight Time zone and they follow daylight savings time. The Federal Information Processing System (FIPS) Code for echo $county.' County, '.$state_abbrev ?> is 46135.
The population in Yankton County, SD is currently 23,297. That is an increase of 4.55% vs the population of 22,438 in 2010.