Sweetwater County Detention Center

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

Facility quick reference

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, call the numbers ICE publishes for detainee information: (307) 352-4900 or (307) 352-4935. ICE’s page for this facility publishes no separate urgent-message line — ask this number how to get a message to the person. 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). Confirm current hours on the official ICE page linked above.

Sending mail, commissary funds, and personal items

ICE lists each facility’s format on that facility’s page at ice.gov. Under ICE’s National Detention Standards, Revised 2019, §5.1(E), 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; confirm the current procedure and any approved vendor on the official ICE page linked above before sending money or items.

Facility-specific rules (checked October 16, 2026)

• ICE says all personal mail must be routed through NCIC Correctional Services and refers readers to NCIC.com; ICE also says the facility accepts no personal property by mail or drop-off. Source.
• ICE gives this legal-mail address: Sweetwater County Detention Center, 50140 US Highway 191 South, Rock Springs, WY 82901. Source.

Legal access, attorneys, and immigration court information

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.

Facility-specific rules (checked October 16, 2026)

• ICE says case-information requests for people held at the Sweetwater County Jail may be sent to wyomingero@ice.dhs.gov, and that this mailbox does not accept applications for a stay of removal or case appeals. Source.

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.

ICE inspection record

ICE’s Office of Detention Oversight (ODO) inspected this facility, which its report calls the Sweetwater County Jail in Rock Springs, through an ODO-assisted self-inspection (OASIP) from April 9 to May 8, 2025 (ODO report, Inspection 2025-006-021). It was ODO’s first compliance inspection of the jail and the most recent report for it on ICE’s ODO facility inspections page when we checked on October 15, 2026. What the report says:

• Who runs it: the jail opened in 2005 and is owned and operated by Sweetwater County; ERO began housing detainees there in 2006 under ERO Denver. ICE uses it under a U.S. Marshals Service intergovernmental agreement that does not specify an ICE detention standard, so ODO inspected it against the National Detention Standards (NDS) 2019. It holds male and female detainees of low through high security classification for periods longer than 72 hours. Summit Correctional Services provides food and commissary, Kennon Tubbs MD, LLC provides medical care, and the jail holds no outside accreditations.
• Findings: compliant with 8 of 10 standards reviewed; 2 deficiencies, both priority components: in 1 of 4 medical files reviewed, a detainee’s tuberculosis screening came 10 days after arrival instead of within 72 hours; and the jail gave detainees two pairs of socks and no underwear at intake, so detainees had to buy underwear through the commissary. ODO also recorded an area of concern: the jail did not inventory detainees’ funds and personal property on arrival.
• Rating: Acceptable.

ODO redacts bed-capacity and population counts in the published report; for population, see the ICE statistics box above.

287(g) agreements in Sweetwater County

This facility is in Sweetwater County, Wyoming (per the U.S. Census Bureau geocoder for the address ICE publishes). ICE's 287(g) participating-agencies workbook, dated October 9, 2026, records 3 agreements with agencies in that county:

Source: ICE, 287(g) program (participating-agencies workbook). A 287(g) agreement is between ICE and the law-enforcement agency; on its own it says nothing about this facility. What each model means · all agreements by state.

Related procedural resources

• Know Your Rights — what to do if ICE detains you
• EOIR immigration court schedules and procedures
• BIA-recognized legal-aid organizations in Wyoming
• Other ICE detention facilities in Wyoming
• All facilities under the Denver Field Office