FCI Lompoc I is a low-security federal prison for male inmates and one of the institutions within the larger Lompoc Federal Correctional Complex in Santa Barbara County, California, near Vandenberg Space Force Base. It generally houses inmates serving sentences of roughly one to fifteen years, most of them for drug offenses or other non-violent crimes, with a population in the range of 800 to 900 in recent counts. Housing at the facility includes both dormitory-style and room-based units spread across several general housing buildings, and like other low-security institutions it offers a fairly standard slate of vocational training, education, counseling, and pre-release programming. Much of Lompoc I's institutional identity is tied up with the broader complex it belongs to — the site's roots trace back to a former military disciplinary barracks at Camp Cooke that predates the current civilian prison system there — but detailed facility-specific history distinct from the rest of the Lompoc complex is limited in public sources. For families, the main things to know are its low-security classification and its role as one part of a multi-facility complex rather than a freestanding prison.