A new U.S. Census Bureau data shows big differences in home values, incomes and ownership costs across the North State. Tehama County had the lowest average home value at $314,900. Shasta County followed at $366,400, Butte County had the highest average home values, at $410,700. The census data also found homeowners in Tehama County generally faced the lowest monthly ownership costs, while Butte County residents paid the most. Tehama and Shasta counties also had the highest homeownership rates, suggesting more residents in those counties have been able to move from renting to owning.