| Official Name: | Lake Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Newton |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 39.79 |
| Area Land Sq Mi: | 39.78 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2020 |
| Population Total: | 2349 |
| Population Density Sq Mi: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Footnotes: | [1] |
| Elevation M: | 199 |
| Elevation Ft: | 653 |
| Coordinates: | 41.1303°N -87.4631°W |
| Area Code: | 219 |
| Blank Name: | FIPS code |
| Blank Info: | 18-40968[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453537 |
Lake Township is one of ten townships in Newton County, Indiana. As of the 2020 census, its population was 2,349 and it contained 1,020 housing units.[3]
According to the 2010 census, the township has a total area of, all land.[4]
(This list is based on USGS data and may include former settlements.)