Interactive Maps

To see how property assessments in your community compare with other communities throughout the nation, please zoom into your community using the map below for a visual comparison of your city, county, or state. 


Dot Density Map of Over and Under Assessed Properties

In this map, properties are classified as over or under-assessed relative to the county median assessment ratio. For instance, if the median property in a county was assessed at 100% of its sale price, any property assessed at more than 100% of its sale price would be classified as over-assessed and any property assessed at less than 100% of its sale price would be classified as under-assessed. Blue dots represent under-assessed properties and red dots represent over-assessed properties. Each dot represents 20 properties. The dots are randomly scattered within the census tract in which the properties are located. The map is designed to show spatial clustering of over- and under-assessed properties. Zooming in to small geographies can reveal localized patterns within and across neighborhoods. The map does NOT show the exact location of any individual property. 

County Level Regressivity Statistics

Click on a state or zoom in to see county level detail. Click on individual counties to access county reports.


Note that for some counties (shaded black or clear above) sales were either unavailable or too infrequent for analysis.

What does this map show?

Map colors reflect the ratio of assessments for high- and low-priced homes. Values above 1 indicate that low-priced homes are assessed at higher levels than high-priced homes. Specifically, the map shows the ratio of the assessment level in the top decile (highest priced homes) relative to the bottom decile (lowest priced homes). For example, if the average home in the top decile were assessed at 60% of its sale price and the average home in the bottom decile were assessed at 120% of its sale price, the ratio would be 2.