| Official Name: | River Junction, Iowa |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Iowa#USA |
| Pushpin Label: | River Junction |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Johnson |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 650 |
| Coordinates: | 41.4906°N -91.4969°W |
| Area Code: | 319 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 460649 |
River Junction is an unincorporated community in Johnson County, Iowa, United States.
The community was named after its location at the confluence of the English and Iowa Rivers. River Junction was founded in 1873.[1] Its population was 42 in 1902.[2] The population was 42 in 1940.[3]