| Official Name: | Persifer Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Knox County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Knox County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Knox |
| Established Title: | Established |
| Established Date: | November 2, 1852 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.57 |
| Area Land Sq Mi: | 34.72 |
| Area Water Sq Mi: | 0.85 |
| Area Water Percent: | 2.39 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 28.2 |
| Elevation M: | 182 |
| Elevation Ft: | 597 |
| Coordinates: | 40.9331°N -90.1556°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 61428, 61436, 61448, 61485 |
| Blank Name: | FIPS code |
| Blank Info: | 17-095-59221 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 954 |
Persifer Township is one of twenty-one townships in Knox County, Illinois, USA. As of the 2010 census, its population was 980 and it contained 835 housing units.[2]
According to the 2010 census, the township has a total area of, of which (or 97.61%) is land and (or 2.39%) is water.[2]
(This list is based on USGS data and may include former settlements.)
The township contains these three cemeteries: Bradford, Myers and Trenton.