Middlesex Jail & House of Correction
Middlesex Jail & House of Correction
County Jail and House of CorrectionMailing Address
[Incarcerated Individual Full Name] — [ID #]
C/O Securus Digital Mail Center - Middlesex
P.O. Box 25555
Tampa, FL 33622
C/O Securus Digital Mail Center - Middlesex
P.O. Box 25555
Tampa, FL 33622
Physical Address
269 Treble Cove Road, Billerica, MA 01862
Phone
Governing Agency
Middlesex Sheriff's Office
Inmate ID
Inmate ID — Required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Effective August 1, 2024, all personal/nonprivileged mail goes to Securus Digital Mail Center - Middlesex, P.O. Box 25555, Tampa, FL 33622. Legal/privileged mail and approved publications continue to the Billerica facility.
Source: Official sourceLast verified: September 27, 2026
Pictures and drawings may be scanned and delivered digitally if they meet current rules.
Source: Official sourceLast verified: September 27, 2026
Books are accepted only under the current authorized-retailer rules; newspapers/magazines must come from approved direct sources.
Source: Official sourceLast verified: September 27, 2026
Cash, checks and money orders are not accepted through the Securus personal-mail channel. Use approved account funding methods.
Source: Official sourceLast verified: September 27, 2026
Follow Middlesex Sheriff's Office visitor approval and current visiting schedule.
Source: Official sourceLast verified: September 27, 2026
How to Address Your Letter
Effective August 1, 2024, all personal/nonprivileged mail goes to Securus Digital Mail Center - Middlesex, P.O. Box 25555, Tampa, FL 33622. Legal/privileged mail and approved publications continue to the Billerica facility.
About Middlesex Jail & House of Correction
Middlesex Jail & House of Correction is the active Middlesex County correctional facility in Billerica; personal mail is digitally processed off-site.