knowledge Overview
Mason County is a county of Illinois, United States (FIPS il125), with a population of about 13,565[1].
Geography
- Coordinates: 40.2396, -89.9168
- Time zone: America/Chicago
Places · place_us_il_mason_county
Mason County
Mason County is a county of Illinois, United States.
Profile
- Place kind
- County
- Admin area
- United States · Illinois · Mason County
- Coordinates
- 40.23965, -89.91678