| Unit Pref: | Imperial |
| Settlement Type: | Township |
| Official Name: | Linn Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Woodford |
| Leader Title: | Supervisor |
| Established Title: | Established |
| Established Date: | Unknown |
| Area Total Sq Mi: | 36.62 |
| Area Land Sq Mi: | 36.62 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 7.8 |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 289 |
| Blank Name: | FIPS code |
| Blank Info: | 17-203-43835 |
Linn Township is located in Woodford County, Illinois at T28N, R1W. As of the 2010 census, its population was 287 and it contained 117 housing units.[2] Linn Township was formed when it separated from its original township to create two new townships, the other being Clayton Township (T28N, R1E), on an unknown date.
According to the 2010 census, the township has a total area of, all land.[2]