This choropleth map displays median home prices by county across New York State for 2023. The visualization immediately reveals the stark regional disparities in housing costs, from high-priced counties like Nassau and Westchester to more affordable northern regions. The map uses a quantile color scale created with `d3.scaleQuantile` and rendered through `d3.geoPath`, with New York-specific county boundaries extracted from TopoJSON data. County polygons are colored from the `d3.schemeBlues` palette. Hovering over a county reveals a tooltip with its exact median price and sales count, drawing from the provided CSV housing dataset.