| Official Name: | Westphalia, Indiana |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Westphalia |
| Coordinates: | 38.8628°N -87.2256°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Type3: | Township |
| Subdivision Name1: | Indiana |
| Subdivision Name2: | Knox |
| Subdivision Name3: | Vigo |
| Established Date: | December, 1881 |
| Named For: | Westphalia |
| Area Total Km2: | 5.34 |
| Area Land Km2: | 5.34 |
| Elevation Footnotes: | [1] |
| Elevation Ft: | 466 |
| Population Total: | 181 |
| Population As Of: | 2020 |
| Population Density Km2: | 33.89 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47596 |
| Timezone: | EST |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Blank Name: | FIPS code |
| Blank Info: | 18-83204[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 445855 |
| Unit Pref: | Imperial |
| Area Footnotes: | [3] |
| Area Total Sq Mi: | 2.06 |
| Area Water Km2: | 0.00 |
| Area Land Sq Mi: | 2.06 |
| Area Water Sq Mi: | 0.00 |
| Population Density Sq Mi: | 87.78 |
Westphalia is an unincorporated community and census-designated place (CDP) in Vigo Township, Knox County, Indiana. As of the 2010 census it had a population of 202.[4]
Westphalia was laid out in 1881, and it was originally built up chiefly by Germans.[5] It was named after the region of Westphalia in Germany.[6] The Westphalia post office was established in 1881.[7] Many businesses have existed over the history of Westphalia including a variety store, antique store, hotel, blacksmith, elevator, photo studio, mine supply and the Westphalia elementary school.
Westphalia is located in northeastern Knox County at 38.8628°N -87.2256°W. Indiana State Road 67 passes through the center of the community, leading northeast 3miles to Sandborn and southwest 4miles to Edwardsport and to Vincennes, the Knox county seat. Indiana State Road 58 joins SR 67 northeast out of Westphalia but leads west 5miles to Freelandville.
According to the U.S. Census Bureau, the Westphalia CDP has an area of 5.34sqkm, all of it land.[4]
Westphalia has a playground, a church (Salem United Church of Christ), low income senior apartments and a post office. Westphalia is a rural community.