- Where is Chinnock located?
- Chinnock is in Napa Valley, United States (Northern California, Napa County., Napa City Coordinates: 38°17′49.6″ N, 122°17′9.6″ W., Visit Napa Valley, +2, If "Chinnock" refers to a specific winery or vineyard, please verify the spelling for more accurate location details., Napa coordinates - Latitude, Longitude - Time-Ok, California, United States. Latitude, Longitude: 38.2971, -122.286. Elevation: 19 (ft) Napa coordinates in different formats. Format. Latitude, Longitude. Simple..., Time-Ok).