Los Alamos, New Mexico

About This Branch

First National 1870, a division of Sunflower Bank N.A.

Los Alamos, New Mexico is a tight-knit mountain community of about 12,000 located on the mesas of the Pajarito Plateau. We are best known as the home of Los Alamos National Laboratory, whose mission is, “to solve national security challenges through scientific excellence.”

Our bank is proud to have been the repository of funds for the U.S. government as it established its Los Alamos operations, supplied banking facilities to the many contractors who built Los Alamos, and provided payroll for the laboratory personnel throughout its early years. In 1948, we opened a branch here, the first bank branch in Los Alamos.

Today we enjoy lots of great weather, outdoor activities, culture and history, and we are within 45 miles of eight Indian pueblos. First National 1870 is an active member of the Los Alamos Chamber of Commerce, participating in many local activities like Chamberfest and Halloween on Main Street. If you’re in our beautiful area, please stop in and say hello.  

Our Services

  • ATM
  • Mortgage Lender Originator on site
  • Notary on site
  • Safe Deposit Box