Johnson County, Illinois, USA - 349 square miles.
Idaho County is 8,502 sq miles (22,020 km²).
Harney County, OR is 10,226 sq miles (26,485 km²).
Yuma County, AZ is 5,519 sq miles (14,294 km²).
Tarrant County, TX is 897 sq miles (2,323 km²).
The largest County in Maine is Aroostook, measuring 6,829 square miles.
Cook County, Illinois, USA - 1,635 square miles.
McLean County 1,184 sq mi
There are about 10,000 living in Johnson County.
The Distance between Atlanta (Georgia,Fulton County,US) and Chester (Illinois,Randolph County,US) is :418.71 miles. (673.84 kilometers (km).
320 miles
88 miles between Pontica Illinois and Chicago Illinois.
258.8 miles
194 miles
According to Illinois state, Illinois has 63 miles of coastline along Lake Michigan.
Chicago is a city in Illinois.
It is 13.9 miles according to Google Maps.
It is 27 miles accoording to Google Maps.