Apartments For Rent In Morningside Sioux City . Compare rentals, see map views and save your favorite apartments. 301 21st street, sioux city, ia 51104. Indian Hills Apartments Rentals Sioux City, IA from www.apartments.com 714 noltze dr, sioux city, ia 51103. Compare rentals, see map views and save your favorite apartments. 18 apartments rental listings are currently available.