Free public GIS
Counties and states publish parcel geometry and attributes as open data where available.
How it works
Public GIS in, parcel lines out.
Landlines does not invent boundaries. Free county and state GIS is resolved into map-ready parcels — then the app draws the lines.
Thin resolver
Our API looks up parcels for the map view. No secret warehouse of private surveys — public record only.
App draws lines
On device: boundaries, GPS accuracy ring, and owner/sale context when the source provides it.
Not a survey.GPS is approximate (often ~3–10 m).Public record from county/state sources where available.Lines can lag real-world changes in the source data.