Plymouth information on the site is deemed reliable, but not guaranteed. Our Plymouth stats, Plymouth census, and Plymouth information is aggregated from many different sources and may be dated. Currently, we have two Plymouth foreclosures of nine thousand eight hundred eighty Plymouth, Iowa housing units housing units, of which nine thousand three hundred seventy-two are occupied, seven thousand two hundred sixty are owner occupied, two thousand one hundred twelve are rented, five hundred eight are vacant, and three thousand thirty-four have mortgages. has nine thousand three hundred seventy-two households, and twenty-four thousand eight hundred forty-nine citizens.