06/17/2026
Did you know our community maintains the highest fire protection rating available?
Williamson County ESD #3 (Hutto Fire Rescue) proudly maintains an ISO Public Protection Classification (PPC) of Class 1, the highest rating awarded by the Insurance Services Office (ISO). This elite designation is earned by less than 1% of fire departments nationwide and reflects our community's overall ability to prevent, respond to, and suppress fires.
The ISO evaluates communities using a 100-point scale that measures a community's overall fire protection capabilities. The score is based on four key areas:
🚒 Fire Department Operations (50 points)
💧 Water Supply & Hydrants (40 points)
📞 Emergency Communications (10 points)
🛡️ Community Risk Reduction (up to 5.5 points of additional credit)
Maintaining an ISO Class 1 rating requires much more than having fire trucks and firefighters. It reflects highly trained personnel, strategically located fire stations, strong water infrastructure, reliable emergency communications, fire prevention and public education efforts, and a commitment to continuous improvement.
For residents and business owners, an ISO Class 1 rating can also have a direct financial benefit. Many insurance companies use the PPC rating when determining property insurance premiums, and communities with the highest ratings often qualify for lower insurance costs.
While an ISO Class 1 rating is known for helping to lower insurance costs, its true significance goes far beyond dollars and cents. Maintaining this rating is a reflection of our commitment to protecting what matters most: the people we serve.