Johnston Iowa About
Johnston Iowa has a zip code of 50131. The current date and time in Johnston is April 27, 2024, 3:57 pm and it has a population of 8,970 people. Johnston Iowa lies at an elevation of 805 feet.
Johnston Iowa has a zip code of 50131. The current date and time in Johnston is April 27, 2024, 3:57 pm and it has a population of 8,970 people. Johnston Iowa lies at an elevation of 805 feet.