Plymouth County Jail
Plymouth County Jail
County Jail / Adult Detention FacilityMailing Address
[Inmate Full Legal / Booked Name] — [Inmate / Booking Number if known]
Plymouth County Jail
451 14th Avenue NE, Le Mars, IA 51031
Plymouth County Jail
451 14th Avenue NE, Le Mars, IA 51031
Physical Address
451 14th Avenue NE, Le Mars, IA 51031
Phone
Governing Agency
Plymouth 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 booked/legal name and send to Plymouth County Jail, 451 14th Avenue NE, Le Mars, IA 51031. Include the sender's complete name and return address.
Source: Official sourceLast verified: September 27, 2026
Confirm the jail's current photograph size, quantity and content restrictions before mailing. Do not send irreplaceable originals.
Source: Official sourceLast verified: September 27, 2026
Confirm the jail's current publisher/vendor, binding and package rules before ordering books, magazines, newspapers or parcels.
Source: Official sourceLast verified: September 27, 2026
Plymouth County's published inmate-mail guidelines allow certified checks or money orders by mail for inmates; personal checks are not accepted.
Source: Official sourceLast verified: September 27, 2026
Verify current custody, visitor registration or approval 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 Plymouth County Jail before mailing. Use the inmate's full booked/legal name and inmate or booking number when known. Mail to: Plymouth County Jail, 451 14th Avenue NE, Le Mars, IA 51031. Include a complete sender return address.
About Plymouth County Jail
Plymouth County Jail is the current county jail / adult detention facility serving Plymouth County, Iowa.