California Jen Web Logo


U S Jen Web Logo




If you would like to learn more about becoming a County Coordinator and a part of The CAGenWeb Project, or if you have any other questions relating to this county, please read our Policies & Procedures and then contact our State Coordinator.

This county has a volunteer available to perform lookups! Please contact the volunteer below for more information:

Peggy B. Perazzo

The CAGenWeb Project sincerely thanks the dedicated volunteers who devoted time and effort toward making this site a successful one:

Roger Peeples, County Coordinator 1996-1999
Peggy B. Perazzo, County Coordinator 1999-2006 and 2007-2012
Pat Perazzo, Webmaster 1999-2006 and 2007-2012
Nathan Zipfel, County Coordinator 2006-2007
Jeff Beasley 2014-2017

Special thanks to Peggy B. Perazzo and to Shirley J. Parsons for their long-term commitment to this project by being lookup volunteers.

State Coordinator: Elizabeth E. Bullard
Assistant State Coordinator: Marc Irish
Assistant State Coordinator: Bob Jenkins



A Little Bit About Yolo County:

California Map with Yolo Highlighted

Yolo County is north west of Sacramento County and is known for its fertile soil. The County’s entire eastern boundary is the Sacramento River and its western boundary is a chain of coastal mountains. The plain in between contains rich soil that has built up from centuries of winter run off and flooding from the Sacramento River. 

The name Yolo is derived from the Patwin Indian word Yoloy, which means place of the rushes. The entire west bank of the Sacramento River once had great fields of tule rushes and the county abounded with swamplands, marshes, and sloughs. 

The California Gold Rushes of 1848 and 1850 brought an increase in population in Yolo County. Some immigrants to the county prospected for gold, but most realized early on that any fortune to be made in Yolo County would be through farming and ranching.

Yolo was one of the original counties when California became a state on September 9, 1850. The town of Fremont, south of present-day Knights Landing on the Sacramento River, was named the county seat, as it was the only organized town in Yolo County at the time. Fremont suffered from severe flood damage and, in 1851, the county seat was moved to the town of Washington (later called Broderick) across the river from Sacramento.

By 1857, the population in Yolo had grown and a more centrally located county seat was desired. A small community on Cache Creek called Huttons’, (named for James Hutton, who had built a large house there) was finally laid out and named as the county seat. It was named Cacheville at that time, but later came to be known as the Town of Yolo.

In 1860, the county seat was moved back to Washington, but the 1862 floods in Washington prompted voters to move the county seat to the newly organized town of Woodland. Woodland was centrally located in the county. It has remained the county seat ever since.


Project Links:

The CAGenWeb Project
CAGenWeb Brochure (pdf file)
The USGenWeb Project
USGenWeb Special Projects
The WorldGenWeb Project


County Message Board (
County Forum (


Send requests to Peggy B. Perazzo



Neighboring Counties:

Neighbor Map

Colusa (north)
Sutter (northeast)
Sacramento (east and south)
Solano (south)
Napa (west-southwest)
Lake (west-northwest)






This site was updated last on 14-Jan-2019 12:55