Avenidas or Avenues run East to West and Calles or Streets run North to South. Avenida Central (Avenue Zero) divides the city North/South. Avenues to the North are odd numbered, 1, 3, 5... Avenues South are even numbered, 2, 4, 6.. Similarly, Calle Central divides the city East/West with even numbered streets to the West and odd numbered to the East.

House, building numbers and signs on stores are practically non-existent. There are not many street signs in Costa Rica. Occasionally at an intersection you will find one affixed to the side of a building. Directions are given using the distance in meters from a landmark. One block is considered 100 meters (328'), no matter how long it is.