ISO classifies communities from 1 (the best) to 10 (the worst) based on how well they score on the ISO Fire Suppression Rating Schedule, which grades such features as water distribution, fire department equipment and manpower and fire alarm facilities. ISO field representatives use the schedule when surveying a community's fire protection capability. The score that is determined from applying the Fire Suppression Rating Schedule is translated into a public protection classification. A perfect score in Texas is 106.5. It consists of 50 points for fire department capabilities, 40 points for water supply and distribution, 10 points for receiving and handling fire alarms and 6.5 points for a "Texas Addendum" that grades fire safety education, building code enforcement, fire prevention code enforcement and fire investigation capabilities.
The current rating inside the city is a 2. Outside the city, but less than 1000 feet from a fire hydrant and less than 5 miles from a fire station is also a 2. Outside the city and more than 1000 ft from a fire hydrant, but less than 5 miles from a fire station is a 9. For more information on ISO rating's from the State Fire Marshal's Office, please visit the State Fire Marshal's Office website at the following link.State Fire Marshal's Office