|Iowa State Senate District 12|
| Assumed office|
| Current term ends|
Schoenjahn earned his BA in Social Science from the University of Northern Iowa. He went on to earn his MA in Political Science from the University of Northern Iowa.
Schoenjahn was a teacher for Starmont Community Schools from 1972 to 2005.
- Appropriations Committee, Iowa Senate
- Education Committee, Iowa Senate
- Judiciary Committee, Iowa Senate
- Local Government Committee, Iowa Senate
- Natural Resources Committee, Iowa Senate
On November 4, 2008, Schoenjahn was re-elected to the 12th District Seat in the Iowa State Senate, defeating Rebecca Wearmouth (R). Schoenjahn raised $126,771 for his campaign, while Wearmouth raised $5,074. 
|Iowa State Senate, District 12 (2008)|
|Brian Schoenjahn (D)||17,402|
|Rebecca Wearmouth (R)||9,641|
Schoenjahn and his wife, Barbara, have one child.
- Official Iowa State Senate website of Brian Schoenjan
- Project Vote Smart biography
- Campaign Contributions: 2008, 2006, 2004