Natrona County Detention Center is an ICE Enforcement and Removal Operations (ERO) detention facility located in Casper, Wyoming. It falls under the Denver Field Office ERO field office area of responsibility.

Facility quick reference

ItemDetail
Facility nameNatrona County Detention Center
Street address1100 Bruce Lane
City, State, ZIPCasper, WY 82601
Mailing address for detainee letters201 N David, 2nd Floor, Casper, WY 82601
Detainee information line(307) 235-9521 (8 a.m.–5 p.m.)
Facility main phone(307) 235-9521
ERO field office main phone(720) 873-2899
ERO field officeDenver Field Office
ICE detainee locatorlocator.ice.gov
Official ICE pageice.gov/detain/detention-facilities/natrona-county-detention-center
Last verified2026-09-10
ICE detention statistics — fiscal year 2026
8
average daily population (FY2026)
9.4
average days length of stay (FY2026)

ADP = average daily population; ALOS = average length of stay, both FY2026 averages (not a same-day count). Source: ICE Detention Management, FY2026 (released 2026-07-20).

How to locate or contact a detainee

To locate someone in ICE custody, use the ICE Online Detainee Locator System at locator.ice.gov. You will need the person’s A-number (Alien Registration Number) and country of birth, or their full name, country of birth, and date of birth.

To ask whether someone is held here, and to leave an urgent message for a detainee, ICE publishes one number: (307) 235-9521. Give the detainee’s full name, alien registration number (A-number), your name, and a telephone number where you can be reached; ICE says the detainee will be given your message. Detainees cannot receive incoming calls — they place outgoing calls themselves. Have the person’s biographical information ready when you call (full legal name and any aliases, date of birth, and country of birth). ICE says the detainee-information line can be called between 8 a.m. and 5 p.m. (checked October 16, 2026). This facility does not allow in-person visits by friends and family — see Visiting in person below.

Visiting in person

Per ICE’s page for this facility (checked October 16, 2026):

  • No in-person visits by friends and family: ICE says the Natrona County Sheriff’s Office “does not allow in-person friends and family visitation at the facility” and contracts all communication with inmates through NCIC Correctional Services. The visiting restrictions on the same page also state that “All family or other social visits are non-contact.”
  • Tablets and messages: ICE says the facility has tablets. Instructions for sending a non-confidential message are on Natrona County’s “Video Visitation” page, which ICE’s page points to.
  • Consular officials may meet with their detained nationals at any time. ICE asks that they make prior arrangements, to the extent possible, with the ICE Supervisory Deportation Officer at (307) 462-1602, and that they bring appropriate credentials.
  • Clergy may visit at any time but must make prior arrangements with the Chaplain’s Office.
  • Searches: everyone requesting admittance to the facility or the visitation area is subject to a pat-down search, an inspection of belongings and a metal scan. Anyone who refuses a reasonable search is not admitted.
  • Banned items: no firearms or weapons of any kind, and no electronic devices (cell phones, pagers, radios, etc.) in the secure areas.
  • Visitor conduct: a visitor who is or appears to be intoxicated is not allowed to visit. Visitors may not pass items to detainees or carry any items into the visitation area.
  • Parking: ICE says free public parking is available at the facility.

Sending mail, commissary funds, and personal items

ICE lists each facility’s format on that facility’s page at ice.gov. This facility’s own ICE page says incoming mail “is not read upon opening, only inspected by the delivering officer”. ICE’s 2019 national standard allows more than that. Under ICE’s National Detention Standards, Revised 2019, §5.1(E) — cited here for comparison only, because ICE’s Office of Detention Oversight inspected this facility in July 2025 under the Federal Performance-Based Detention Standards (FPBDS, May 2025) instead (inspection report), and we have not reviewed that standard’s mail rules — incoming general mail is opened and inspected for contraband, and outgoing general mail may be inspected and read if it is addressed to another detainee or staff have reason to believe it threatens the facility’s security or order, endangers someone, or could facilitate criminal activity. Only special correspondence — mail to or from attorneys and other legal representatives, courts and judges, government attorneys, embassies and consulates, the President and Vice President of the United States, members of Congress, the Department of Justice (including the immigration courts), DHS (including ICE/ERO, IHSC, CRCL and the DHS Inspector General), grievance administrators, and the news media — may not be read or copied by staff. Incoming special correspondence is inspected for contraband in the detainee’s presence; outgoing special correspondence is not opened, inspected or read, and if a need exists, any inspection takes place in the detainee’s presence. The standard limits any inspection to detecting physical contraband and confirming that enclosures qualify as special correspondence. Mail counts as special correspondence only if the envelope unambiguously identifies the title and office of the sender (incoming mail) or of the addressee (outgoing mail). Rules for commissary (account) deposits and permitted personal items vary by facility, and so does the number that handles them — ICE names a separate facility mail clerk on some facility pages. This facility’s deposit route, accepted form of payment and contacts are in the Sending Items to Detainees section of its own ICE page (linked above).

What ICE publishes for this facility’s mail, money, and packages

Per ICE’s page for this facility (checked October 16, 2026; the page shows “Updated: 08/06/2026”):

  • Mailing address: this is not the 1100 Bruce Lane street address.
[Detainee's full name]
Natrona County Detention Center
201 N David, 2nd Floor
Casper, WY 82601
  • Letters must include the last four digits of the detainee’s A-number (File Number), plus the sender’s name and address. Incoming mail is screened for contraband. Detainees may seal their outgoing letters, and outgoing mail is routed to the post office within 24 hours of receipt by facility staff.
  • Not accepted through the mail: packages, obscene or pornographic materials, personal checks, cashier’s checks, postage stamps or stamped envelopes, any type of food, and periodicals not sent directly from the publisher.
  • Money: ICE’s page gives no deposit method of its own. It refers readers to Natrona County’s “Sending Money Policy/Account Hours” page.
  • Items for travel or release: a detainee may receive items determined necessary solely for travel or release from custody, with approval of the ICE Deportation Officer. Before sending one, contact the Casper, WY Sub-Office at wyomingero@ice.dhs.gov or (307) 462-5025.
  • Luggage for removal: one small piece is allowed. If the person has none, luggage can be sent or delivered after approval from the Supervisory Deportation Officer. No electronic devices (cell phones, electric razors, laptop computers, radios, etc.) are accepted.
  • Stamps: detainees may buy them. Indigent detainees (no means of financial support and no funds in their facility account) get a postage allowance at government expense.
  • Transfers and departures: only legal mail is forwarded. General correspondence is endorsed “Return to Sender.”

Detainees have the right to speak with an attorney, and attorney–client visits and calls are confidential. For information about a case before the immigration court (EOIR), EOIR’s automated line 1-800-898-7180 (toll-free, 24 hours a day, English and Spanish) gives the next hearing date and case status; callers enter the 9 digits of the A-number, without the letter A (EOIR, checked October 24, 2026). For a matter before the Board of Immigration Appeals (BIA), the main line of EOIR (the Justice Department agency the BIA belongs to) is (703) 305-0289. Applications for relief from removal must be filed directly with the immigration court handling the case. If you cannot afford an attorney, the immigration court can provide a list of pro bono legal service providers — see the related resources below.

Per ICE’s page for this facility (checked October 16, 2026):

  • G-28s can be submitted through ERO eFile. Facility staff do not have access to it, so ICE says legal representatives should download copies of their submitted G-28 for any in-person or remote legal visit.
  • In-person attorney visits: legal representatives are authorized to visit clients in person by calling the Natrona County Jail at (307) 235-9521 and scheduling an appointment.
  • Legal calls can be scheduled through NCIC Correctional Services.
  • Case information: requests can be sent to wyomingero@ice.dhs.gov. ICE says this mailbox does not accept applications for Stay of Removal or Case Appeals.
  • Identifying the client’s Deportation Officer: call the Casper, WY Sub-Office at (307) 462-5025. A G-28 must be on file for any information to be disclosed.
  • Pro bono list: the list of pro bono (free) legal organizations is posted in all detainee housing units and other appropriate areas and is updated quarterly. Contacting an organization for an appointment is the detainee’s responsibility.

ICE says legal representatives can email legal correspondence to wyomingero@ice.dhs.gov. The email must:

  • state in the subject line that it is legal correspondence/mail;
  • attach the documents ERO is to deliver;
  • include the following information in the email body and on the attachment cover sheet: the detainee’s full name, A-number, the sender’s return fax number, the total number of pages, and the notation “Legal Mail.”

The documents are inspected for contraband but not read, then delivered. Requests are processed Monday through Friday, 8 a.m. to 4 p.m., excluding holidays. When timely communication through the mail is not possible, the ERO office may, in its discretion, allow a reasonable amount of electronic written communication between the detainee and the designated legal representative.

Feedback, complaints, and oversight

To report a concern about conditions at this facility or the conduct of an ICE or contract employee, contact the ERO Denver Field Office that oversees this facility, or file a complaint with the DHS Office for Civil Rights and Civil Liberties (CRCL). On its own Make a Civil Rights Complaint page DHS publishes one channel — the online portal at engage.dhs.gov/crcl-complaint; CBP additionally publishes, for the same office, the e-mail address CRCL@dhs.gov, fax (202) 401-4708, and the postal address DHS/CRCL, Compliance Branch, 2707 Martin Luther King Jr Ave SE, Mail Stop #0190, Washington, DC 20528-0190. The DHS Office of Inspector General (OIG) hotline is 1-800-323-8603.

This facility’s own ICE page adds these channels (checked October 16, 2026):

  • Comments on service, or a misconduct complaint to the field office: Field Office Director, Enforcement and Removal Operations, U.S. Immigration and Customs Enforcement, 12445 E. Caley Avenue, Centennial, CO 80111; phone 720-873-2899.
  • ICE Office of Professional Responsibility (by mail): Director, Office of Professional Responsibility, U.S. Immigration and Customs Enforcement, 500 12th Street, SW, Suite 1049, Mailstop 5099, Washington, DC 20536-5005.
  • ICE OPR Integrity Coordination Center: 1-833-4ICE-OPR or ICEOPRIntake@ice.dhs.gov.
  • DHS OIG in writing, as listed on ICE’s page: DHS Office of Inspector General, Attn: Office of Investigations - Hotline, 245 Murray Drive, Building 410 Stop: 2600, Washington, DC 20528; fax (202) 245-5217; DHSOIGHOTLINE@DHS.GOV.

A news reporter who wants to interview someone held here must apply in writing to the Denver Field Office, Office of Enforcement and Removal Operations, indicating familiarity with and agreement to comply with the facility rules and regulations provided by staff. ICE says a detainee has the right not to be interviewed, photographed or recorded by the media, and the reporter must first obtain the detainee’s written permission. Media inquiries about ICE go to ICEMedia@ice.dhs.gov.

ICE inspection record

ICE’s Office of Detention Oversight (ODO), part of ICE’s Office of Professional Responsibility, issued Inspection 2025-006-048, dated July 31, 2025 (ODO report). Per ICE’s July 2025 inspection report:

  • Facility name: the report is titled for the Natrona County Jail, Casper, Wyoming.
  • Field office: the report lists the facility under ERO Denver.
  • Standard: ODO organized its findings by the Federal Performance-Based Detention Standards (May 2025).