Downlink Weather offline address data

Source: U.S. Census Bureau, 2025 TIGER/Line Address Range Feature county files
https://www2.census.gov/geo/tiger/TIGER2025/ADDRFEAT/
Documentation: https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2025/TGRSHP2025_TechDoc.pdf

The separate nationwide data pack covers 50 states, D.C., and Puerto Rico.
Guam, Northern Mariana Islands, American Samoa, and USVI are deferred.
Source coverage and supported address formats are incomplete even in included areas.

Public-domain U.S. Government materials, adapted by Downlink Weather.
TIGER/Line is a registered Census Bureau trademark identifying the source.
This application and its derived address index are not Census products.
Per-source URLs, SHA-256 hashes, counts and conversion settings are recorded
in the metadata table of each state SQLite database.

Addresses are interpolated along Census street ranges, not verified building
locations. Ranges describe potential numbers, including structures that may
not exist. Missing, overlapping and incorrect ranges are possible. Coordinates
are not rooftop or parcel locations, postal-delivery validation, or suitable
for emergency navigation. No accuracy or completeness guarantee is made.
NAD83 geometry is transformed to WGS84 offline; all vertices are retained and
rounded to six decimal places. This precision does not establish accuracy.

The app never downloads this data at runtime and never contacts a geocoder.