| Official Name: | Illyria Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Fayette |
| Area Total Km2: | 95.45 |
| Area Land Km2: | 95.44 |
| Area Water Km2: | 0.01 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.86 |
| Area Land Sq Mi: | 36.85 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.01 |
| Population As Of: | 2010 |
| Population Total: | 532 |
| Population Density Km2: | auto |
| Elevation M: | 324 |
| Elevation Ft: | 1063 |
| Coordinates: | 42.8708°N -91.6656°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 50606, 52141, 52142, 52169, 52175 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468063 |
Illyria Township is one of twenty townships in Fayette County, Iowa, United States. As of the 2010 census, its population was 532.[1]
According to the United States Census Bureau, Illyria Township covers an area of 36.86 square miles (95.45 square kilometers); of this, 36.85 square miles (95.44 square kilometers, 99.99 percent) is land and 0.01 square miles (0.01 square kilometers, 0.01 percent) is water.
(This list is based on USGS data and may include former settlements.)
The township contains these three cemeteries: Illyria-Highland, Saint Josephs and Wadena.