Download Newport County (partial RI municipal aggregate: Newport, Portsmouth, Tiverton), Rhode Island GIS parcel data - 26,612 parcels with owner names, site & mailing addresses, acreage, land use, and sale values. Instant delivery in Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. $100 per county.
Data freshness: Town of Portsmouth RI 2025 Real Property Tax Roll; last loaded into LandAI on 2026-05-25.
Every purchase includes all five export formats (Shapefile, FileGDB, GeoPackage, GeoJSON & CSV), standardized to the LandAI parcel schema with WGS84 (EPSG:4326) geometry. After checkout you choose which formats to generate and download them for 45 days.
Field completeness measured across 26,612 active parcels (Town of Portsmouth RI 2025 Real Property Tax Roll; last loaded into LandAI on 2026-05-25):
| Field | Coverage |
|---|---|
| Owner names | 97.7% |
| Site addresses | 98.3% |
| Owner mailing addresses | 96.9% |
| Deeded acres | 61.2% |
| Calculated (GIS) acres | 100% |
| Land use | 31.1% |
| Last sale price | 38.8% |
| Sale / transfer date | 38.8% |
| Market total value | 58.9% |
| Building square footage | 61.2% |
| Legal description | 31.1% |
These are 11 of the 48 standardized fields in the LandAI parcel schema. Live per-field completeness for every field is shown on this page's interactive view.
Newport County (partial RI municipal aggregate: Newport, Portsmouth, Tiverton), Rhode Island has 26,612 active parcels in the LandAI dataset (source data as of 2026-05-21).
Every parcel includes the standardized LandAI schema: parcel ID and geometry plus owner names (97.7%), site addresses (98.3%), owner mailing addresses (96.9%), deeded acres (61.2%), calculated (GIS) acres (100%), land use (31.1%), last sale price (38.8%), sale / transfer date (38.8%), and more.
Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. Every $100 county purchase includes all five formats; you choose which to generate after checkout and can re-download for 45 days.
Town of Portsmouth RI 2025 Real Property Tax Roll; last loaded into LandAI on 2026-05-25.
Yes - 97.7% of Newport County (partial RI municipal aggregate: Newport, Portsmouth, Tiverton) parcels include a normalized owner name, along with owner mailing addresses where the county provides them.
View Newport County (partial RI municipal aggregate: Newport, Portsmouth, Tiverton) pricing & coverage | All Rhode Island counties | Browse the LandAI Data Store