Grantsburg is an unincorporated community in Johnson County, Illinois, United States. Grantsburg is located on Illinois Route 146 near the Shawnee National Forest, east of Vienna. Grantsburg has a post office, with the ZIP code 62943.[2]
Grantsburg, Illinois | |
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Unincorporated community | |
![]() ![]() Grantsburg ![]() ![]() Grantsburg | |
Coordinates: 37°23′27″N 88°44′49″W | |
Country | United States |
State | Illinois |
County | Johnson |
Elevation | 377 ft (115 m) |
Time zone | UTC-6 (Central (CST)) |
• Summer (DST) | UTC-5 (CDT) |
ZIP code | 62943 |
Area code(s) | 618 |
GNIS feature ID | 409314[1] |
Municipalities and communities of Johnson County, Illinois, United States | ||
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County seat: Vienna | ||
Cities |
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Villages | ||
Precincts |
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Unincorporated communities | ||
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