| Official Name: | Harrison Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Vigo |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 23.54 |
| Area Land Sq Mi: | 23.03 |
| Area Water Sq Mi: | 0.51 |
| Area Water Percent: | 2.17 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 48920 |
| Population Density Sq Mi: | 2226.4 |
| Elevation M: | 149 |
| Elevation Ft: | 489 |
| Coordinates: | 39.4756°N -87.3886°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 47802, 47803, 47804, 47805, 47807 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 453398 |
Harrison Township is one of twelve townships in Vigo County, Indiana, United States. As of the 2010 census, its population was 51,272 and it contained 22,940 housing units.[2] It is entirely contained in Terre Haute's city limits, thus explaining why it is both the most densely populated and the most populated overall.
According to the 2010 census, the township has a total area of, of which (or 97.83%) is land and (or 2.17%) is water.[2]
The boundaries consist of the following streets or features:
The township contains these four cemeteries: Calvary, Grandview, Rogers and New Harmony.
As of the census[3] of 2000, there were 51,898 people and 20,618 households residing in the township. The population density was 2,262/mi2. The racial makeup of the township was 86.8% White, 9.3% Black or African American, 0.3% Native American, 1.0% Asian, less than 0.1% Pacific Islander, 0.5% from other races, and 2.0% from two or more races. 1.2% of the population were Hispanic or Latino of any race.
The average household size was 2.29 and the average family size was 2.96.The median age was 31.6 years. For every 100 females, there were 89 males.
The median income for a household in the township was $26,705, and the median income for a family was $35,135. The per capita income for the township was $14,540. 20.6% of the population and 16.4% of families were below the poverty line.
This township is served by the Vigo County School Corporation. Several schools are located in this township: