Mason County

United States (US) · ADM2 · pop 13,565

Mason County is an administrative area in United States, IL. Coordinates: 40.2396, -89.9168. Timezone: America/Chicago. Elevation: 151 m. Population (last census): 13,565.

This place is indexed in the SENTINEL Places database, which contains over 850,000 populated places and administrative areas worldwide, sourced from the GeoNames public dataset under CC-BY 4.0. SENTINEL is a unified open-web intelligence platform by Oblivion Technologies LLC — discover websites, ask questions, automate workflows, and explore the world.