Map of Penngrove CDP

Penngrove is a census-designated place (CDP) in Sonoma County, California, United States, situated between the cities of Petaluma and Cotati, at the foot of the western flank of Sonoma Mountain. It is part of the North Bay subregion of the San Francisco Bay Area. The population was 2,522 at the 2010 census.

The area is the site of a historic grove called Penn’s Grove; it was formerly a freight station on the Northwestern Pacific Railroad and a center of egg and chicken farming.

Penngrove CDP overview:
Name:	Penngrove CDP
LSAD Code:	57
LSAD Description:	CDP (suffix)
State:	California
County:	Sonoma County
Elevation:	85 ft (26 m)
Total Area:	4.024 sq mi (10.423 km²)
Land Area:	4.024 sq mi (10.423 km²)
Water Area:	0 sq mi (0 km²) 0%
Total Population:	2,522
Population Density:	630/sq mi (240/km²)
ZIP code:	94951
Area code:	707
FIPS code:	0656476

Online Interactive Map

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Penngrove online map. Source: Basemap layers from Google Map, Open Street Map (OSM), Arcgisonline, Wmflabs. Boundary Data from Database of Global Administrative Areas.

Penngrove location map. Where is Penngrove CDP?

Penngrove location on the U.S. Map. Where is Penngrove CDP. — Penngrove location on the U.S. Map.

Penngrove location on the California map. Where is Penngrove CDP. — Location of Penngrove in California.

History

The Mexican government granted Rancho Cotate to Captain Juan Castaneda in July 1844 for his military services in the region. The grant encompassed present-day Penngrove, Cotati and Rohnert Park. Cotate Rancho is a part of Vallejo Township which encompasses the plain between Sonoma Mountain and Petaluma Creek, San Pablo Bay, with an east–west line dividing the tract from Santa Rosa Township.”

Rancho Cotate was sold in 1849 to Dr. Thomas S. Page of Cotati, and eventually broken up and sold off piecemeal to incoming settlers.

The first European settlers in the Penngrove area were David Wharff, W.J. Hardin, and J.M. Palmer, who arrived in 1852.

In October 1870, the San Francisco and North Pacific Railroad completed the first railroad from Petaluma to Santa Rosa, running through Penngrove.

Penngrove Road Map

Penngrove city Satellite Map

Geography

Penngrove’s downtown consists of Main Street, a 0.3-mile (0.48 km) street linking Old Redwood Highway to Adobe Road. Penngrove School is located at the corner of Adobe Road, where Main Street becomes Petaluma Hill Road.

Lichau Creek flows southward through the town, paralleling the railway. The creek feeds into the Petaluma River, which flows to San Pablo Bay.

Due to the Sonoma Mountain’s ancient volcanism, Penngrove is rich with obsidian and petrified wood. Its soil is unique, composed mainly of clay-like adobe, which has been used for centuries as building material. A prime example of adobe architecture is the Rancho Petaluma Adobe, a State Historic Park in nearby Petaluma.

Penngrove enjoys a mild Mediterranean climate.

According to the United States Census Bureau, the CDP covers an area of 4 square miles (10.4 km), all of it land.