Yuba County is located in the northern corridor of the California capitol region. Marysville, the County seat and one of the first seven charter cities in California, is located midway between the fast growing metropolitan areas of Sacramento and Chico. Considered the northwestern corner of the Central Valley, Yuba County's economic base continues to offer abundant agricultural crops in a rural setting. Fifty seven miles in length and 22 miles at its widest point, the County is 640 square miles and bounded by Sutter County to the south and west, Butte and Plumas counties to the north, and Sierra, Nevada, and Placer counties to the east. Incorporated February 18, 1850, Yuba County is one of the original 28 counties established in California.

The County has a varied geography, including the confluence of the Feather, Yuba and Bear rivers, wooded mountains, streams, lakes and agricultural croplands that vary from orchards to vineyards. Elevations range from 20 feet above sea level to nearly 4,820 feet in the northern part of the County. Weather in Marysville is typically mild, wet winters and hot summers. The average maximum January temperature in January is 54 degrees and the average maximum July temperature is 96.3 degrees with an annual precipitation of 22.8 inches.

Major transportation corridors include the north-south Highways 70 and 65 and the east-west 20, providing easy access to Sacramento's International Airport, deep-water port, and Interstates 5 and 80. The Yuba County Airport offers a 6,006-foot main runway for local flying opportunities and features an annual air show. The County is served by the Union Pacific Railroad and the agricultural industries rely heavily on truck fleets.

Home to the Yuba Community College District, the County is also within 50 miles of major universities. A Small Business Development Center (SBDC) and a One-Stop Center, located in Marysville, provide business with practical solutions and assistance. The Yuba-Sutter Economic Development Corporation and Chamber of Commerce serve the region. There is a well-established medical community that includes Rideout Memorial Hospital, a state-of-the-art cancer facility and a leading-edge cardiac center. Active local theater and art groups thrive, service and social groups abound, and unlimited recreational opportunities enhance the historic gateway to the goldfields.

The Sleep Train Amphitheater features outdoor concerts. A minor league baseball team, the Yuba-Sutter Gold Sox, plays in Marysville. Golf courses include the Peach Tree Country Club and Plumas Lake Golf Course. Regional parks, including Beckworth Riverfront Park and Ellis Lake in Marysville, offer venues for sports-related tournaments and cultural events and fairs.

Yuba County features recreational areas such as Bullards's Bar dam and reservoir, Collins Lake, Lake Francis and over 25,00 acres of wildlife area and National Forest land. Numerous duck and pheasant hunting clubs can be found in the County. Marysville, population 12,300 and Wheatland, population 2,340 are the two incorporated towns in the County. Other historic communities include Timbuctoo, Camptonville, Camp Far West, and Strawberry Valley.