County and city rates are only the base. Incorporated towns can add their own real-estate levy, and insurance, HOA dues, commuting, and utilities can change the monthly picture.
Read sparse data honestly
Lancaster County, Northumberland County, Richmond County, Westmoreland County currently relies on assessed-value signals, not a clean sale median. Treat those cards as directional until enough arms-length sales sync.
Use this page as a starting point, then open the area guides for the underlying numbers and source notes.