| Helvetia Township | |
| Township | |
| Country | United States |
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| State | Illinois |
| County | Madison |
| Elevation | 489 ft (149 m) |
| Coordinates | |
| Area | 36.2 sq mi (93.8 km2) |
| - land | 36.1 sq mi (93 km2) |
| - water | 0.1 sq mi (0 km2) |
| Population | 8,145 (2000) |
| Settled | November 2, 1875 |
| Timezone | CST (UTC-6) |
| - summer (DST) | CDT (UTC-5) |
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Location in Madison County
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Location of Helvetia Township in Illinois
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Location of Illinois in the United States
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Helvetia Township is located in Madison County, Illinois. The population was 8,145 at the 2000 census.
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