Thanks for mentioning Quandl, @a_lifters_life! As someone who works at Quandl, I wanted to point out that we do have some free real estate data: The Zillow da

Thanks for mentioning Quandl, @a_lifters_life! As someone who works at Quandl, I wanted to point out that we do have some free real estate data: The Zillow database shows home prices and rents by size, type and tier, housing supply, demand and sales etc: https://www.quandl.com/data/ZILL https://www.quandl.com/data/ZILL The National Association of Realtors database shows average and median home prices by area and dwelling type: https://www.quandl.com/data/NAR https://www.quandl.com/data/NAR The Freddie Mac database shows house price indexes for various American cities as well as historical mortgage rates: https://www.quandl.com/data/FMAC https://www.quandl.com/data/FMAC Hope this helps! I don't believe these show house prices by zip code, but they are divided by area.