Monroe Correctional Complex
| Aerial view of the complex | |
| Location | Monroe | 
|---|---|
| Coordinates | 47°50′37″N 122°0′7″W / 47.84361°N 122.00194°W | 
| Status | Operational | 
| Security class | Level 2 (Minimum 2/Camp), Level 3 (Minimum 3/Long Term, Medium), Level 4 (Close), Level 5 (Maximum, ITU) | 
| Capacity | 3,100 | 
| Population | 1,497 (as of October, 2024) | 
| Opened | 1910 (Washington State Reformatory) | 
| Former name | Washington State Reformatory, Twin Rivers Corrections Center, Special Offender Center | 
| Managed by | Washington State Department of Corrections | 
| Director | Superintendent Jack Warner | 
| Street address | 16550 177th Avenue SE | 
| City | Monroe | 
| County | Snohomish County | 
| State/province | Washington | 
| Postal code | P. O. Box 777 (WSR/IMU) P. O. Box 7001 (MSU) P. O. Box 514 (SRTC) P. O. Box 888 (TRU) | 
| Country | United States | 
| Website | www | 
The Monroe Correctional Complex is a Washington State Department of Corrections men's prison located in Monroe, Washington, United States. With a bed capacity of over 3,100, it is the largest prison in the state.