The Porter Ranch, CA map has 2 places to visit. That adds up to 2 wineries. Use the map to see where each one sits.
Porter Valley Winery
11434 Twin Hills Ave, Porter Ranch, CA 91326
(818) 917-3403
portervalleywinery.com
The Vineyards At Porter Ranch
20000 Rinaldi St, Porter Ranch, CA 91326
thevineyards.com