Mississippi Creates Database of Illegal Immigrants as Federal Government Fails on Border
Mississippi launches a state-run database of illegal immigrants and criminalizes unauthorized entry starting July 1, joining over 100 state immigration enforcement measures enacted nationwide amid federal border security failures.
Mississippi's new immigration enforcement law takes effect July 1, authorizing a state database of illegal immigrants and criminalizing unauthorized entry. The measure arrives as Mississippi joins a wave of more than 100 state immigration laws enacted nationwide this year. State officials frame it as a direct response to federal failure on border security.
The Department of Public Safety will compile names, addresses, country of origin, criminal history, deportation status, and age classification for all undocumented immigrants living in Mississippi. The two-year database effort mirrors Florida's Executive Order 21-223, which directed similar record-keeping by state law enforcement.
State Auditor Shad White's August 2024 report estimated 22,000 illegal immigrants cost Mississippi taxpayers over $100 million annually. The breakdown includes $25 million for K-12 education, $77 million for healthcare, and $1.7 million for incarceration. White called the figure "a very, very conservative estimate" and noted the money could fund "massive teacher pay increases" or eliminate the grocery tax entirely.
The legislation makes unauthorized entry a misdemeanor carrying at least six months imprisonment. Enhanced penalties apply to repeat offenders, with prison sentences of not less than five years for violent crimes or sex offenses. Courts may issue written orders requiring individuals without legal permission to return to their country of origin.
Mississippi's 287(g) agreements with ICE doubled from 11 at the end of 2025 to 22 in the first four months of 2026. By October 1, every county law enforcement agency operating a detention facility must make a "reasonable attempt" to execute a written 287(g) agreement with federal authorities.
More than 100 immigration-related laws passed nationwide in 2026 as Republican-led states built enforcement frameworks where Washington has faltered. Mississippi's HB 538, which prohibits sanctuary policies and mandates compliance with ICE requests, passed the House 77-40. Democratic-led states have pushed back by banning cooperative ICE pacts and restricting federal enforcement tactics.
Sen. Angela Hill (R-Picayune), sponsor of SB 2114, called the database "commonsense" and stressed the need to "understand the magnitude of the problem" before addressing it. Jessica Vaughan of the Center for Immigration Studies said the law "makes a lot of sense" and "raises the likelihood that someone's illegal presence is going to come to the attention of federal authorities."
The ACLU of Mississippi warned the law "could undermine trust between police and residents." The National Immigration Law Center called it "practically unworkable" and "eerily reminiscent of other countries that have created lists of certain groups of people." The law authorizes only "reasonable lawful investigative means" and does not compel police to enforce federal immigration law, requiring merely "reasonable attempts" to sign 287(g) agreements.
Hill stated the legislation aligns state law with federal statutes. "We're making it a crime for a person to come into Mississippi, not through a proper port of entry, but to come into Mississippi directly from another country," she said during legislative debate.
White's office reported that Mississippi's illegal immigration problem "is spiraling out of control and is costing taxpayers millions." The auditor emphasized his $100 million estimate represents "the lower bound of what that number could be" given population changes since the 2024 analysis.
The American Immigration Council estimates Mississippi has fewer than 28,000 illegal immigrants, representing less than 1 percent of its population. ICE made approximately 26,600 arrests nationally in fiscal year 2025, with about half involving individuals without criminal convictions.
Similar state-level immigration enforcement measures in Texas and Oklahoma face federal court challenges based on preemption arguments. The Supreme Court has held that federal laws generally preempt state laws on immigration, though states retain some enforcement authority.
Mississippi's approach contrasts sharply with sanctuary jurisdictions that limit cooperation with federal immigration authorities. The state's legislation requires all agencies to comply with ICE detainer requests and provide information on immigrants when federal authorities ask.
Supporters argue the database represents necessary fiscal responsibility. "When people see the $100 million cost, I think people think, 'What else could we be using that for?'" White said. "It could be used for massive teacher pay increases. We could be well on the way to eliminating the grocery tax completely."
Critics including immigration attorney Brandon Riches warn that "authorizing state and local authorities to enforce immigration laws without proper instruction risks inviting wrongful arrests and detainments." He added that "this just creates a huge rift between law enforcement and communities."
The database compilation begins July 1 as Mississippi joins a growing coalition of states implementing immigration enforcement measures absent federal action. The law's provisions will face practical implementation challenges and likely legal scrutiny in coming months.