Assessor: Dan Schlueter 107 S. Roop St Susanville, CA 96130 Phone: (530) 251-8241 Fax: (530) 251-8245 Website
QUICK FACTS: -Lassen County is a county in the northeastern portion of the U.S. state of California. As of the 2010 census, the population was 34,895. The county seat and only incorporated city is Susanville. Lassen County comprises the Susanville, California, micropolitan statistical area.