As of , there are 0 properties listed for sale in the city of Mason City and — properties listed for sale in the ZIP code 68855. Those 0 Mason City properties include 0 single family homes and 0 condos. This single family residential home located at 525 Green St in 68855 was last listed for $—. This is N/A below the median of $— for that ZIP code and N/A below the current median price of $0 for Mason City. 525 Green St is roughly 968 Sqft, which is 0% above the Mason City median of 0 and N/A below the 68855 ZIP code median of —. This property's price per square foot was —, which is N/A below the current median price in 68855 of $— and N/A below the Mason City median of $0 per square foot.