How accurate is NPDP digital parcel map data?
It varies according to the source data. The accuracy of each database is included in the metadata record that comes with each NPDP countywide parcel map database. As can be seen below, almost 90% of all content is 6 ft or better and getting better with each update. Jurisdiction-specific accuracy levels are included in the price quotes provided in response to Order Form inquiries. npdp accuracy Accuracy (± Feet) # of Jurisdictions Parcels (millions) Percent of Parcels 1-2 102 16 23 2-4 140 26 37 6–10 260 20 29 10 + 78 8 11 Totals 580 70 100% Back to Table of Contents 2.
