Arizona has some of the largest and oldest ICE detention facilities in the country, including the Eloy Detention Center and the Florence Service Processing Center, plus expanded holding operations that have drawn federal oversight and state litigation. Our firm files federal habeas corpus petitions in the District of Arizona when bond is denied, detention drags on, or immigration court review is not enough.
Arizona is one of the busiest ICE detention states in the country. Its position on the U.S.-Mexico border, longstanding federal facilities in Florence and Eloy, and recent expansion of holding operations in Mesa and Surprise all feed a large and growing detention system. When bond is denied, when custody stretches past what the law allows, or when a facility's remote location cuts off access to counsel, a federal habeas corpus petition may be the fastest path to meaningful review for someone detained by ICE in Arizona.
Enforcement across Arizona is coordinated by the Phoenix Field Office. As of mid-2026, six active facilities hold ICE detainees, most located in Pinal County between Phoenix and Tucson. The active detention footprint includes:
Arizona has also become a focus of proposed detention expansion. In April 2026, the Arizona Attorney General filed suit against the federal government to block conversion of a warehouse in Surprise into an ICE detention facility, arguing that its location across from a hazardous chemical storage site made it inappropriate under federal law. The planned capacity was later reduced from 1,500 to 542.
Most habeas petitions we file for people detained by ICE in Arizona fall into a few recurring patterns:
Each is a distinct fact pattern where a federal habeas petition under 28 U.S.C. § 2241 may reset the review process. Which one fits depends on the specific timeline and record.
Arizona sits within the Ninth Circuit Court of Appeals, based in San Francisco. The Ninth Circuit has historically been one of the more receptive circuits for immigration detention challenges, ruling on prolonged detention, mandatory detention limits under INA § 236(c), and the availability of bond hearings after extended custody. The District of Arizona has developed one of the most active immigration detention dockets in the country given the concentration of large facilities in Pinal County. See our overview of prolonged detention challenges for how these arguments are typically framed.
Ninth Circuit precedent means Arizona habeas petitions can often draw on a well-developed body of case law, but timing still matters. ICE sometimes transfers detainees from Arizona to Texas or Louisiana, moving cases into the Fifth Circuit where the case law is less favorable. Filing quickly can preserve Ninth Circuit jurisdiction when it counts.
An immigration court bond hearing and a federal habeas petition are two different tools. Bond hearings happen inside the immigration system before an immigration judge and address only whether the person can be released. Habeas petitions are filed in federal district court under 28 U.S.C. § 2241 and ask an Article III judge to review whether the immigration detention itself is constitutional and statutorily authorized.
The two tracks often work in sequence. When ICE argues that a person is subject to mandatory detention with no right to a bond hearing, habeas is frequently the only remaining avenue. When bond has been denied and detention has already stretched for months, habeas can force a second look under a different legal standard. Our guide comparing habeas corpus and immigration bond hearings walks through when each tool tends to fit for someone detained by ICE in Arizona.
The first hours after an Arizona ICE arrest or transfer set the tone for everything that follows. Concrete steps:
Eloy, AZ
Contract Detention FacilityFlorence, AZ
Service Processing CenterFlorence, AZ
Contract Detention FacilityFlorence, AZ
IGSASan Luis, AZ
Contract Detention FacilityMesa, AZ
Field Office / Holding SiteIf your loved one is detained by ICE in Arizona, a federal habeas corpus petition may be the most effective legal tool available. Unlike immigration court proceedings, habeas petitions are filed in U.S. District Court before an independent federal judge — not a government employee.
We handle complex cases, including:
Arizona has a single federal judicial district, the United States District Court for the District of Arizona, with courthouses in Phoenix, Tucson, Flagstaff, Prescott, and Yuma. Because all major ICE facilities in Arizona sit within one district, the District of Arizona handles the overwhelming majority of Arizona habeas litigation.
The Phoenix Division covers Maricopa, Pinal, and surrounding counties, including Eloy, Florence, and Mesa. Because Pinal County holds the state's largest ICE facilities, the Phoenix Division sees the largest share of ICE detention habeas cases.
The Tucson Division covers southern Arizona, including Pima, Cochise, and Santa Cruz counties. It handles habeas petitions related to border-region enforcement.
The Yuma Division covers Yuma and La Paz counties, including the San Luis Regional Detention Center.
The District of Arizona falls under the Ninth Circuit Court of Appeals, based in San Francisco, whose immigration detention case law has been particularly influential and generally more favorable to detainees than some other circuits. Filing procedures for the District of Arizona are published on the ICE Detention Facility Locator and on the district's court website.
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