Zillow & Zestimates Accuracy
The Zestimate’s accuracy depends on location and the availability of data in an area. For off-market homes, the median error rate is 7.52%. Source: Zillow’s website, frequently asked questions, How accurate is the Zestimate?
Let’s think about this for a minute. Nationwide 7.52% error rate. If you have a $500,000 home the Zillow Nationwide error rate would equal $37,600. It could be $37,600 High or low.
Keep in mind that this is an automated value system that doesn’t consider the condition or location of properties. Here is an extreme example: Home 1 has $150,000 worth of recent upgrades plus a pool located on an extra-large cud-de-sac lot and they are comparing to Home 2, a bank owned foreclosure located on a main street that has been vandalized with roof damage plus the electric and plumbing ripped out. The Zestimate is going to have a huge error rate in this example.
On the other hand, if there is 10 homes that recently sold in the same neighborhood and all of them were similar in condition, size and location then the Zestimate may be pretty accurate.
This is why should never rely on automated value systems. We advise having a Realtor (Us) show you supporting comparable sold, pending and listed properties and give you their opinion of value along with the supporting data.
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Based on information from California Regional Multiple Listing Service, Inc. as of September 21, 2026 5:03 PM UTC This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.
Greater Antelope Valley Association of Realtors®: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless.
Tehachapi Area Association of REALTORS;reg& All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may