The Zestimate’s accuracy depends on location and availability of data in an area. Some counties have deeply detailed information on homes such as number of bedrooms, bathrooms and square footage and others do not. The more data available, the more accurate the Zestimate value.
Zillow's accuracy has a median error rate of 5%. This means half of the home values in the area are closer than the error percentage. For example, in Seattle, Zestimate values for half of the homes are within 5% of the selling price, and half are off by more than 5%.
To improve Zestimate accuracy, we allow homeowners to edit their home facts and then they incorporate this information into their Zestimate calculations.
Be aware that in some areas, they might not be able to produce a Zestimate at all, but they do have some basic information on the homes. The tables below show you where they have Zestimates and other home information.
| Bay County | Two Stars | 110.8K | 89.2K | 45.0% | 64.7% | 76.7% | 5.4% |
| Lee County | Four Stars | 517.5K | 344.8K | 58.6% | 79.7% | 92.0% | 3.8% |
| Clay County | Four Stars | 88.3K | 75.8K | 64.5% | 80.1% | 87.8% | 3.0% |
| Gulf County | Two Stars | 16.2K | 9.1K | 16.7% | 24.4% | 30.8% | 18.2% |
| Lake County | Three Stars | 164.8K | 136.2K | 54.7% | 74.5% | 86.7% | 4.2% |
| Leon County | Two Stars | 102.8K | 88.0K | 45.6% | 67.6% | 81.4% | 5.3% |
| Levy County | Two Stars | 39.7K | 17.3K | 22.4% | 37.7% | 50.8% | 12.6% |
| Polk County | Three Stars | 298.4K | 238.8K | 55.3% | 73.6% | 84.5% | 4.2% |
| Baker County | Two Stars | 9.5K | 7.9K | 27.9% | 41.9% | 57.0% | 5.8% |
| Dixie County | Two Stars | 14.6K | 8.0K | 18.4% | 23.7% | 32.9% | 14.3% |
| Duval County | Four Stars | 360.7K | 326.1K | 61.0% | 77.7% | 86.3% | 3.5% |
| Pasco County | Three Stars | 265.6K | 236.1K | 55.8% | 75.0% | 85.4% | 4.2% |
| Union County | Two Stars | 4.5K | 3.6K | 2.2% | 8.9% | 15.6% | 19.6% |
| Citrus County | Two Stars | 139.7K | 75.1K | 43.3% | 64.3% | 77.4% | 5.8% |
| Glades County | Two Stars | 8.4K | 5.2K | 14.3% | 25.4% | 33.3% | 9.4% |
| Hardee County | Two Stars | 9.7K | 7.2K | 11.5% | 15.4% | 25.0% | 15.6% |
| Hendry County | Two Stars | 30.3K | 10.8K | 21.5% | 31.1% | 45.2% | 14.8% |
| Holmes County | Two Stars | 10.0K | 6.2K | 7.9% | 17.5% | 23.8% | 23.0% |
| Marion County | Three Stars | 250.3K | 151.8K | 50.0% | 70.0% | 81.6% | 4.7% |
| Martin County | Three Stars | 77.8K | 71.4K | 46.7% | 68.5% | 84.6% | 5.1% |
| Monroe County | Two Stars | 53.3K | 44.2K | 38.8% | 58.6% | 77.1% | 6.0% |
| Nassau County | Three Stars | 45.4K | 37.1K | 48.0% | 70.3% | 81.9% | 4.4% |
| Orange County | Four Stars | 449.1K | 399.9K | 62.6% | 80.6% | 90.8% | 3.3% |
| Putnam County | Two Stars | 90.2K | 34.6K | 27.0% | 43.1% | 57.9% | 10.6% |
| Sumter County | Three Stars | 72.1K | 64.6K | 46.5% | 71.1% | 85.4% | 5.1% |
| Taylor County | Two Stars | 14.9K | 8.6K | 8.2% | 12.3% | 27.4% | 21.9% |
| Walton County | Two Stars | 78.7K | 49.8K | 40.2% | 58.0% | 76.2% | 6.6% |
| Alachua County | Three Stars | 99.8K | 80.9K | 50.4% | 69.3% | 82.8% | 4.7% |
| Brevard County | Three Stars | 316.9K | 248.2K | 54.6% | 75.6% | 88.2% | 4.3% |
| Broward County | Three Stars | 751.0K | 710.0K | 53.8% | 75.2% | 89.2% | 4.5% |
| Calhoun County | Two Stars | 8.2K | 4.3K | 0.0% | 4.5% | 6.8% | 45.7% |
| Collier County | Three Stars | 227.9K | 199.0K | 50.1% | 73.8% | 88.2% | 4.9% |
| De Soto County | Two Stars | 13.5K | 9.3K | 28.2% | 38.8% | 47.1% | 6.1% |
| Flagler County | Three Stars | 75.9K | 50.0K | 47.9% | 71.6% | 87.2% | 5.0% |
| Gadsden County | Two Stars | 22.3K | 15.8K | 18.3% | 18.3% | 21.7% | 22.4% |
| Jackson County | Two Stars | 28.1K | 13.9K | 7.1% | 12.5% | 23.2% | 17.6% |
| Liberty County | Two Stars | 3.6K | 2.4K | 2.6% | 2.6% | 5.1% | 41.8% |
| Madison County | Two Stars | 10.0K | 6.0K | 8.6% | 13.8% | 25.9% | 14.6% |
| Manatee County | Four Stars | 186.3K | 161.4K | 57.9% | 76.6% | 87.6% | 3.9% |
| Osceola County | Four Stars | 159.8K | 126.4K | 63.1% | 82.0% | 90.9% | 3.5% |
| Volusia County | Three Stars | 267.2K | 219.4K | 54.8% | 74.9% | 86.8% | 4.2% |
| Wakulla County | Two Stars | 22.0K | 12.9K | 25.7% | 42.9% | 55.2% | 7.3% |
| Bradford County | Two Stars | 12.8K | 9.2K | 21.7% | 41.5% | 51.9% | 8.1% |
| Columbia County | Two Stars | 30.5K | 22.9K | 29.6% | 52.9% | 60.3% | 7.1% |
| Escambia County | Two Stars | 140.3K | 119.4K | 46.7% | 67.6% | 81.2% | 5.3% |
| Franklin County | Two Stars | 16.9K | 7.8K | 10.0% | 23.3% | 33.3% | 10.1% |
| Hamilton County | Two Stars | 9.1K | 4.1K | 5.2% | 10.3% | 20.7% | 22.9% |
| Hernando County | Three Stars | 111.6K | 82.2K | 49.5% | 69.4% | 83.2% | 4.8% |
| Okaloosa County | Three Stars | 99.9K | 86.4K | 52.7% | 74.1% | 85.9% | 4.2% |
| Pinellas County | Three Stars | 431.0K | 389.1K | 53.8% | 74.7% | 88.5% | 4.4% |
| Sarasota County | Four Stars | 290.3K | 230.2K | 57.0% | 76.3% | 87.8% | 3.9% |
| Seminole County | Four Stars | 167.3K | 151.4K | 64.8% | 82.9% | 91.4% | 3.1% |
| Suwannee County | Two Stars | 26.9K | 15.0K | 22.1% | 33.8% | 51.0% | 11.7% |
| Charlotte County | Three Stars | 198.2K | 99.3K | 49.7% | 71.8% | 85.8% | 4.9% |
| Gilchrist County | Two Stars | 10.2K | 5.8K | 22.9% | 31.3% | 43.4% | 8.9% |
| Highlands County | Two Stars | 104.3K | 44.2K | 39.0% | 58.5% | 73.1% | 6.9% |
| Jefferson County | Two Stars | 7.8K | 5.3K | 10.2% | 12.2% | 24.5% | 11.8% |
| Lafayette County | Two Stars | 4.5K | 2.8K | 0.0% | 4.9% | 7.3% | 33.8% |
| Miami-Dade County | Three Stars | 924.2K | 846.2K | 53.8% | 74.5% | 88.4% | 4.4% |
| Okeechobee County | Two Stars | 28.4K | 14.5K | 22.8% | 31.7% | 48.0% | 12.0% |
| Palm Beach County | Three Stars | 634.3K | 602.0K | 52.7% | 74.0% | 88.3% | 4.6% |
| Santa Rosa County | Four Stars | 89.3K | 66.2K | 57.9% | 75.1% | 83.9% | 3.6% |
| Washington County | Two Stars | 38.3K | 9.2K | 17.8% | 26.0% | 42.5% | 11.4% |
| Saint Johns County | Four Stars | 125.4K | 105.8K | 58.5% | 78.1% | 89.5% | 3.9% |
| Saint Lucie County | Four Stars | 158.4K | 126.9K | 57.7% | 78.4% | 89.3% | 3.7% |
| Hillsborough County | Four Stars | 482.3K | 433.0K | 61.0% | 79.7% | 89.8% | 3.6% |
| Indian River County | Two Stars | 86.3K | 71.1K | 45.8% | 67.9% | 84.1% | 5.4% |
- Zestimate Accuracy/Star Rating:
- This rating is tied to the Median Error in an area.
The ratings are as follows:
= Best Zestimate
= Good Zestimate
= Fair Zestimate
= Tax assessor's value, or unable to compute Zestimate accuracy- 0 stars = No valuation
- Homes on Zillow:
- This indicates the percentage of homes for which they have data (e.g., number of bedrooms or bathrooms) in a particular locale. These are the homes you can find via maps or search on Zillow.com.
- Homes With Zestimates:
- They can only calculate Zestimates for homes where we have certain data, including transactions. This column indicates the percentage of homes in an area with Zestimates.
- Within 5% of Sale Price:
- This is the percentage of transactions in a location for which the Zestimate was within 5% of the transaction price. For example, in the Portland area, 61.7% of the time the Zestimate was within 5% of the selling price.
- Within 10% of Sale Price:
- This is the percentage of transactions in a location for which the Zestimate was within 10% of the transaction price.
- Within 20% of Sale Price:
- This is the percentage of transactions in a location for which the Zestimate was within 20% of the transaction price.
- Median Error:
- Half of the Zestimates in an area were closer than the error percentage and half were farther off. For example, in Seattle, Zestimates for half of the homes are within 4.8% of the selling price, and half are off by more than 4.8%.
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