As of , there are 226 properties listed for sale in the city of Alton and 226 properties listed for sale in the ZIP code 62002. Those 226 Alton properties include 224 single family homes and 2 condos. This single family residential home located at 109 Serenity Dr in 62002 was last listed for $189,500. This is 137% above the median of $79,900 for that ZIP code and 137% above the current median price of $79,900 for Alton. 109 Serenity Dr is roughly 1,316 square feet, which is 0.4% above the Alton median of 1,311 and 0.4% above the 62002 ZIP code median of 1,311. This property's price per square foot was $144, which is 118% above the current median price in 62002 of $66 and 118% above the Alton median of $66 per square foot.