The San Luis Obispo County Courthouse is located at 1050 Monterey Street, San Luis Obispo, CA 93408; phone: 805‑781‑5143.
The area that would become San Luis Obispo County was explored in 1769 by Don Gaspar de Portola, Governor of Lower California. Father Junipero Serra founded Mission San Luis Obispo in 1772. The county was organized in 1850.
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