  arroyo gardens-la tina ranch is a census-designated place (cdp) in cameron county, texas, united states. the population was 732 at the 2000 census. it is part of the brownsville&ndash;harlingen metropolitan statistical area. ==geography== arroyo gardens-la tina ranch is located at  (26.216092, -97.496506). according to the united states census bureau, the cdp has a total area of , of which,
Census-designated_places_in_Cameron_County,_Texas Census-designated_places_in_Texas