Cass Township, Sullivan County, Indiana
Cass Township  | |
|---|---|
Location in Sullivan County  | |
| Coordinates: 39°05′07″N 87°17′40″W / 39.08528°N 87.29444°W | |
| Country | United States | 
| State | Indiana | 
| County | Sullivan | 
| Government | |
| • Type | Indiana township | 
| Area | |
 • Total  | 39.46 sq mi (102.2 km2) | 
| • Land | 37.8 sq mi (98 km2) | 
| • Water | 1.67 sq mi (4.3 km2) 4.23% | 
| Elevation | 531 ft (162 m) | 
| Population  (2020)  | |
 • Total  | 1,856 | 
| • Density | 47/sq mi (18/km2) | 
| ZIP codes | 47438, 47848, 47882  | 
| GNIS feature ID | 453168 | 
Cass Township is one of nine townships in Sullivan County, Indiana, USA. As of the 2020 census, its population was 1,856 and it contained 923 housing units.
| Census | Pop. | Note | %± | 
|---|---|---|---|
| 1890 | 2,356 | — | |
| 1900 | 2,819 | 19.7% | |
| 1910 | 4,759 | 68.8% | |
| 1920 | 5,488 | 15.3% | |
| 1930 | 4,304 | −21.6% | |
| 1940 | 4,044 | −6.0% | |
| 1950 | 3,063 | −24.3% | |
| 1960 | 2,443 | −20.2% | |
| 1970 | 2,263 | −7.4% | |
| 1980 | 2,454 | 8.4% | |
| 1990 | 1,912 | −22.1% | |
| 2000 | 1,932 | 1.0% | |
| 2010 | 2,074 | 7.3% | |
| 2020 | 1,856 | −10.5% | |
| Source: US Decennial Census | |||