[Ed. Note: A more recent blog post on this topic (published December 26, 2017) can be found here: How Accurate is Zillow’s Zestimate?]
I’m frequently asked what is the accuracy of Zillow’s Zestimates. Yesterday, I sat in at a seminar presented by some guys from Zillow. They stated that their Zestimates have a median error rate of ±8.5 percent nationally. However, the accuracy rate varies greatly by County.
Did you know, that Zillow monitors and tracks the accuracy of their Zestimates constantly, and reports these numbers for areas across the country? Check out Zillow’s About Zestimates link and drill down to the state, county, or metro area of your choice.
For example, I looked up Washoe County, Nevada and found that the error rate of Zillow’s Zestimates for Washoe County to be ±5.9 percent.