The address of your house or business plays an important role in helping 911 responders
locate the site of an emergency.
County addressing requirements are set forth in the San Juan County Code, Chapter 15.08 – Uniform Addressing System.
The Address assigned to a building is based on the location of its access (driveway).
The measured distance along the road to the driveway entrance is used to calculate
the address, with 1000 addresses per mile, and even numbers on the right, odd on
If, for example, your address is 500 Main Street, 911 responders can determine just
from the address, that the driveway to your house is located 1/2 mile down Main
St on the right hand side.
Your Fire Chief and Emergency responders greatly appreciate
you posting your address clearly at the driveway entrance and on the structure,
to aid them in locating an emergency call.
***If the access changes (for example, if you change your driveway
location), please contact this office for a revised
Because consistent and accurate addresses are essential to providing rapid response
in emergency situations, an address review is required for all new construction.
Existing addresses will be reviewed for compliance with applicable regulations and
for consistency with surrounding addresses. If no address exists for the new building
site, one will be assigned. New construction is assigned an address as part of the
building permit application process.