Measuring disparities in Quality of Life (QOL) can be challenging due to the vast amount of factors to be included. This study attempts to measure disparities in QOL using a newly developed Urban Health Index (UHI). Using 128 census tracts in City of Atlanta in Georgia as an example, this study selects six variables that are related to QOL. Their geometric mean is then used to construct a single numeric value for each census tract. The QOL disparity ratio is then determined by the upper and lower 10% of the data. The slope of disparity is calculated using the remaining 80% of the data. The results show that urban health index may be an affective indicator of QOL in a city.