   bernalillo county is the most populous county in the u.s. state of new mexico.bernalillo county from the website of the new mexico office of the state historian as of the 2010 census, the population was 662,564.the county seat is albuquerque, which is the most populous city in new mexico. bernalillo county is located within the albuquerque, nm metropolitan statistical area. ==geography== bernalillo county is in central new mexico, and "stretches from the east mountain area (just east of the sandia mountains) to the volcano cliffs on the west mesa."bernalillo county extension office from a new mexico state university website according to the u.s. census bureau, the county has a total area of , of which  is land and  (0.22%) is water. ===adjacent counties=== * sandoval county, new mexico - north * santa fe county, new mexico - east * torrance county, new mexico - east * valencia county, new mexico - south * cibola county, new mexico - west ===national protected areas=== *cibola national forest (part) *el camino real de tierra adentro national historic trail (part) *petroglyph national monument ==communities== a local geographical oddity is that the town of bernalillo, north of albuquerque, is not actually in bernalillo county. it is the county seat of sandoval county. ===cities and towns=== [[file:map of bernalillo count
1852_establishments_in_the_United_States Albuquerque_metropolitan_area Bernalillo_County,_New_Mexico New_Mexico_counties