Cass County Jail
Cass County Jail
County Jail / Adult Detention FacilityMailing Address
[Inmate Full Legal / Booked Name] — [Inmate / Booking Number if known]
Cass County Jail
[Inmate Full Name]
5 W. 7th Street
Atlantic, IA 50022
Cass County Jail
[Inmate Full Name]
5 W. 7th Street
Atlantic, IA 50022
Physical Address
5 W. 7th Street, Atlantic, IA 50022
Phone
Governing Agency
Cass County Sheriff's Office
Inmate ID
Inmate / Booking Number — Not required
Last Verified
September 27, 2026
Facility Mailing and Service Information
Use the inmate's full name at Cass County Jail, 5 W. 7th Street, Atlantic, IA 50022, with a complete sender return address.
Source: Official sourceLast verified: September 27, 2026
Confirm the facility's current photograph size, quantity and content restrictions before mailing.
Source: Official sourceLast verified: September 27, 2026
Confirm the facility's current approved publisher/vendor and package rules before ordering books, magazines, newspapers or parcels.
Source: Official sourceLast verified: September 27, 2026
Do not place cash in ordinary correspondence unless specifically authorized. Use the facility's current approved inmate-account deposit method.
Source: Official sourceLast verified: September 27, 2026
Verify current custody, visitor-registration requirements and the current visitation or video-visitation schedule before traveling.
Source: Official sourceLast verified: September 27, 2026
How to Address Your Letter
Verify the person is currently housed at Cass County Jail before mailing. Use the inmate's full booked/legal name and inmate / booking number when known. Mail to: Cass County Jail, [Inmate Full Name], 5 W. 7th Street, Atlantic, IA 50022. Include the sender's complete name and return address.
About Cass County Jail
Cass County Jail is the current county jail at 5 W. 7th Street in Atlantic. The official county page states inmates may receive correspondence at this address.