As of today, , there are 239 properties listed for sale in ZIP code 19720 and 240 properties listed for sale in the city of New Castle. Of those 240 properties, there are 160 single family houses and 80 condos. The last known list price for 9 Denby Ct was $0, which is 100% below the current median price of $159,900 for New Castle and 100% below the median of $159,900 for 19720. 9 Denby Ct is a single family residential home that is approximately — Sqft, which is 100% below the median size in New Castle of 1,435 square feet and 100% below the median size in 19720 of 1,450 Sqft. This property's price per square foot was —, which is 100% below the current median in 19720 of $117 and 100% below the New Castle median of $117.