As of today, , there are 217 properties listed for sale in ZIP code 62002 and 217 properties listed for sale in the city of Alton. Of those 217 properties, there are 215 single family houses and 2 condos. The last known list price for 319 Harriett St was $35,500, which is 56% below the current median price of $79,900 for Alton and 56% below the median of $79,900 for 62002. 319 Harriett St is a single family residential home that is approximately — square feet, which is 100% below the median size in Alton of 1,299 square feet and 100% below the median size in 62002 of 1,299 Sqft. This property's price per Sqft was —, which is 100% below the current median in 62002 of $66 and 100% below the Alton median of $66.