Overview
Grundy County is a county of Illinois, United States (FIPS il063), with a population of about 50,063[1].
Geography
- Coordinates: 41.2851, -88.4185
- Time zone: America/Chicago
Places · place_us_il_grundy_county
Grundy County is a county of Illinois, United States.
Grundy County is a county of Illinois, United States (FIPS il063), with a population of about 50,063[1].