As of , there are 0 properties listed for sale in the city of Mason City and — properties listed for sale in the ZIP code 62664. Those 0 Mason City properties include 0 single family homes and 0 condos. This single family residential home located at 801 S Keefer St in 62664 was last listed for $106,833. This is N/A below the median of $— for that ZIP code and 0% above the current median price of $0 for Mason City. 801 S Keefer St is roughly — square feet, which is N/A below the Mason City median of 0 and N/A below the 62664 ZIP code median of —. This property's price per Sqft was —, which is N/A below the current median price in 62664 of $— and N/A below the Mason City median of $0 per Sqft.