A map of the Santa Clara County Fairgrounds is below:
The Fairgrounds is located at 344 Tully Road (at South 7th Street) in San Jose.
VTA’s 26, 66 and 68 bus lines serve the County Fairgrounds area. In fact, the 26 bus stops within a few feed of the main entrance of the Fairgrounds on Tully Road. From VTA light rail, transfer at Curtner light rail station to any Eastridge bound 26 bus and get off at the Fairgrounds entrance on Tully road.
From downtown San Jose to the Fairgrounds, catch a Kaiser San Jose or Gilroy-bound 66 or 68 bus respectively at 2nd & Santa Clara, then get off the bus at Monterey Highway & Tully. Afterward, walk or bike about 1/2 mile east on Tully to the Fairgrounds.