Livermore (formerly Livermorès, Livermore Ranch, and Nottingham) with a population of 87,955 based on the 2020 Census. Livermore is the most populous city in the Tri-Valley, giving its name to the Livermore Valley. Livermore was platted and registered on November 4, 1869, as a railroad town by William Mendenhall and named for Robert Livermore, Mendenhall’s friend and a local rancher who settled in the area in the 1840s.
It is the home of the Lawrence Livermore National Laboratory, for which the chemical element (116) Livermorium is named (and thus, placing the city's name in the periodic table). It is also the California site of Sandia National Laboratories.
Livermore is a vibrant community with a warm and welcoming downtown and it is also home to over 60 wineries on the south side of the city.