Using Zillow Housing Data and GIS, I analyzed changes in home values across Illinois at the zip-code level. The dataset leverages the Zillow Home Value Index (ZHVI), which measures the typical home value for properties in the 35th to 65th percentile range, encompassing single-family homes, condos, and co-ops. The figures are seasonally adjusted and smoothed to provide a clearer long-term trend.

The data reveals a steady increase in home values since 2000, with a particularly sharp rise beginning around 2020 as the housing crisis intensified. One striking observation is the disparity in home values between the Southside of Chicago and its inner southern suburbs compared to surrounding zip codes, highlighting persistent economic inequities.

Additionally, I explored the percent change in home values by zip code to identify potential spatial patterns—whether certain areas experienced disproportionately high or low growth over time. This analysis could uncover deeper insights into regional housing market dynamics and socioeconomic trends.