New Hampshire Bans ‘Sanctuary’ Cities, Mandates Local Cooperation With Feds

New Hampshire joins a growing list of states that mandate some level of local cooperation with federal immigration enforcement.

U.S. Immigration and Customs Enforcement working with law enforcement partners arrest criminal alien offenders in and around Washington in May 2025. ICE

New Hampshire Gov. Kelly Ayotte signed a pair of bills into law that ban so-called “sanctuary” policies designed to keep local police from cooperating with federal immigration authorities.

“There will be no sanctuary cities in New Hampshire,” Ayotte declared at the bill-signing ceremony, flanked by lawmakers and sheriffs from across the state. “Period. End of story.”