The Napa & Sonoma Counties Thomas Guide provides the most highly accurate, richly detailed mapping available for the area. Easy-to-read, contiguous street-level maps covers the entire county, with a landscape-style layout and spiral binding for maximum convenience on the go.

Full coverage for all cities & communities.

Easy-to-use Page & Grid System.

Township tier, range, and section numbers.

Fully indexed points of interest.

The Napa & Sonoma Thomas Guide content has been fully updated, and includes ZIP codes, boundaries, and transit nformation, as well as a complete street index.

Communities covered:

American Canyon, Angwin, Bodega Bay, Bridge Haven, Calistoga, Circle Oaks, Cloverdale, Cotati, Forestville, Fort Ross, Geyserville, Guerneville, Healdsburg, Jimtown, Lake Curry, Napa, Petaluma, Rohnert Park, Roseland, Rutherford, Saint Helena, Santa Rosa, Sears Point, Sebastopol, Sonoma, Valley Ford, Windsor, and Yountville.