Population:

Colusa County is centrally located in Northern California and its 1,150 square miles are home to nearly 21,500 people. Between 1996 and 2006, the population increased 16 percent in Colusa County. This large increase in population may be a result of a high home prices in the Sacramento area pushing people further north in search of affordable housing, especially along interstate 5. Colusa County has a projected population of 23,565 by 2015.

Of the two incorporated cities in Colusa County, the city of Colusa was the populous, with 5,582 people in 2005. However, the city of Williams was the fastest growing city in the county, with an average population increase of 4 percent between 1995 and 2005. The city of Colusa saw an annual average increase of 0.7 percent during the same time.

Population   -  Age Distribution  -  Race & Ethnicity - Income
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