Zillow's hottest ZIP codes in the Philadelphia region

Zillow has gathered data to show the most popular ZIP codes in the Greater Philadelphia area.

• The real estate marketplace determines the hottest areas by analyzing viewership data on its listings to find the median number of views per ZIP code.

The intrigue: The majority of these areas are in Delaware's New Castle County. Also, no South Jersey ZIP codes made the list.

By the numbers: Here are the top five ZIP codes in the area with highest number of median views:

• 19001: Abington and Willow Grove is the only ZIP code in Pennsylvania that made the list.
• Median price: $349,000
• 19702: Christiana and Bear, Delaware
• Median price: $283,815
• 19707: Hockessin, Pike Creek and North Star, Delaware
• Median price: $489,592
• 19803: Wilmington, Delaware
• Median price: $411,865
• 19711: Newark, Delaware
• Median price: $342,896

Of note: The typical home value in Philadelphia proper is $225,677, a 12.7% increase compared to last year.