On March 25, 1918, the growing town surpassed a population of 2,000, allowing then-governor of New Mexico Washington Ellsworth Lindsey to proclaim Carlsbad a city.
25. ožujka 1918. broj stanovnika ovog grada prešao je 2000, što je ondašnjem guverneru Novog Meksika Washingtonu Ellsworthu Lindseyu dopustilo proglasiti Carlsbad gradom.