Broadband Map's availability estimates are based on the census boundaries
of Fairfax. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Data Sourcing
Broadband Map's listings of business internet providers in Fairfax rely primarily on the November 2025 release from the FCC's Broadband Data Collection program (representing Fairfax ISPs' availability as of June 2025).
