New Mexico, while small, is a state of great diversity in terms of size, growth, and Hispanic concentration of population. Data from the 1980 census indicate New Mexico is the 37th largest state with slightly more than 1.3 million persons and is ninth among the states in percentage of population growth. Growth comes from two demographic sources: migration of people moving into an area and natural increase (more births than deaths over the decade). While New Mexico ranks first in percentage of Hispanic population, it ranks seventh in total Hispanic population. New Mexico counties with high proportions of Hispanic population are Mora, Guadalupe, San Miguel, Rio Arriba, Taos, and Santa Fe. Bernalillo, Dona Ana, San Juan, Santa Fe, and Valencia counties have the largest Hispanic population. Majority concentrations of Hispanics occur in Albuquerque, Santa Fe, Las Cruces, Las Vegas, and Espanola. Ten tables of data show the rank of: the 50 states and the District of Columbia by population size, growth, percentage of Hispanics, and Hispanic population size; New Mexico counties by population size, growth, and percentage and size of Hispanic population; and New Mexico cities by population size, and size and percentage of Hispanic population. (NQA)