Grapora — Wine Grape Intelligence
Our data
Grapora is built on public data. Here's where the prices, maps and business records you see come from.
Grape prices
CDFA Grape Crush Report
Prices on Grapora come from the California Grape Crush Report, published each year by USDA NASS for the California Department of Food and Agriculture (CDFA). We show what grapes sold for by CDFA district, variety and year, for every year from 2000 through 2025. The latest edition we use is the 2025 Final report.
These figures are a reference for what comparable fruit sold for, not a price recommendation.
Wineries
TTB permits
Wineries in our directory and on the map come from the list of permitted wine producers published by the Alcohol and Tobacco Tax and Trade Bureau (TTB). On a bulk wine listing, “TTB permit on file” means the seller's permit number matches that list.
Vineyard records
State wine licenses
License cards on vineyard profiles come from state alcohol license records in California, Oregon, Washington, New York, Texas, Virginia, Michigan, Missouri and Ohio.
CSWA and other certification directories
Certified rows on vineyard profiles come from public member directories: the California Sustainable Winegrowing Alliance (CSWA), SIP Certified, LIVE and Salmon-Safe. Each row shows the directory and the month we checked it.
County parcel data
Parcel totals on vineyard profiles (parcel count, acreage and zoning) come from county assessor records. We show totals only.
Soil
USDA NRCS Soil Survey (SSURGO)
“Soil at a spot” on the map, and soil on vineyard pages and listings, come from the USDA NRCS Soil Survey. They show mapped soil, not a site test.
Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Soil Survey Geographic (SSURGO) Database. Available online at https://sdmdataaccess.sc.egov.usda.gov. Accessed October 17, 2026.
ISRIC SoilGrids
The soil pH layer on the map comes from SoilGrids by ISRIC — World Soil Information. It's a regional estimate on a 250 m grid, not a reading for a single vineyard.
Maps
OpenStreetMap
Mapped vineyard outlines on the map come from OpenStreetMap, which volunteers keep up to date. © OpenStreetMap contributors.
Sentinel-2 NDVI
The map's vine vigor layer comes from Sentinel-2 satellite imagery (Copernicus Data Space). It shows how green the canopy looks from space across a region, not fruit quality. Contains modified Copernicus Sentinel data.
Mapbox
Our base maps are provided by Mapbox.
Questions about our data? hello@grapora.com