15 Safest Cities In Northern California Pleasanton. Population: 83,164. ... Dublin. Population: 67,368. ... Rocklin. Population: 70,219. ... Daly City. Population: 106,855. ... Hollister. Population: 41,438. ... Morgan Hill. Population: 46,925. ... Elk Grove. Population: 177,331. Violent Crime Rate: 2.2. ... Martinez. Population: 38,543. Violent Crime Rate: 2.0. More items... Feb 18, 2023