Below are a list of the cities located in Clayton County, IA. There are 15 total unique zip codes in Clayton County, Iowa. The time zone for Clayton 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 19043.
The population in Clayton County, IA is currently 16,998. That is a decrease of -11.11% vs the population of 18,129 in 2010.
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