In order to compare the performance of one community against any other, the Center has utilized a single commercially-available data set, provided by CoreLogic. CoreLogic is a commercial firm which collects local data records from both public and private entities to provide a uniform picture into the market values, assessed values, and a range of descriptive information for more than 99% of all residential properties in America… almost 40 million sales in total. For an evaluation of assessments nationwide, click here to review our Nationwide Report. To see how property assessments in your community compare with other communities throughout the nation, please select your major metro region from the drop down list below. Or you can zoom into your community using the map below for a visual comparison of your city, county, or state.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.