Free parcel data in Indiana

Yes. Indiana publishes a free statewide parcel layer: Parcel Boundaries of Indiana Current, from Indiana Geographic Information Office (IndianaMap / GIS Data Harvest Program). Coverage: All 92 counties (3,682,675 parcels). It's a public ArcGIS REST service with no API key or login.

The layer

Layer	Parcel Boundaries of Indiana Current
Publisher	Indiana Geographic Information Office (IndianaMap / GIS Data Harvest Program)
Coverage	All 92 counties (3,682,675 parcels)
Data vintage	Annual data harvest; loaddate 2025-07-31 to 2025-10-27
Terms	Public; citation requested (not required): Indiana GIS Data Harvest Program, parcels maintained by Indiana counties
Fields	parcel number (parcel_id, state_parcel_id, local_id); site address (prop_add)
Not published	owner names, deed references, plat references
REST endpoint	`https://gisdata.in.gov/server/rest/services/Hosted/Parcel_Boundaries_of_Indiana_Current/FeatureServer/0`
Last verified	2026-10-19 with a live point and parcel-number query

Notes for GIS users

parcel_id is the dashed 18-digit state format (49-11-02-251-104.000-101); state_parcel_id is the same without punctuation; local_id is the county's own key. county_fips is 5-digit (18097); county_id is the 2-digit Indiana county number.

How to use it

QGIS: Layer > Data Source Manager > ArcGIS REST Server, add a connection with the service URL (the endpoint above without the final /0), then add the layer. Filter to your area before exporting.
ArcGIS Pro: Add Data > Data From Path, paste the endpoint.
Direct query: append /query?geometry=LON,LAT&geometryType=esriGeometryPoint&inSR=4326&spatialRel=esriSpatialRelIntersects&outFields=*&f=geojson to get the parcel at a point.
CAD: see getting a parcel into AutoCAD or Civil 3D.

Assessor parcel lines are for taxation and are often 5 to 50 ft off the legal boundary. Why.

Basesheet uses this to draw the parcel line on a base plan for any Indiana address, with LiDAR contours, soils, flood zones and wetlands.

Build a base plan