Preparing Our 911 Data for Future Demands

Update from 911 GIS MSAG Coordinator and Engineer, Rhonda Parrish

As the newest member of King County’s 911 Program Office, I support the work of our 911 GIS Team, which manages address and road additions and updates in close collaboration with the 41 addressing authorities across the county. Together, we ensure that the GIS data required for accurate emergency call routing is complete, current, and reliable.

With the transition to Next Generation 911 (NG911), the quality of this data has become more critical than ever. Before a call‑taker is involved, calls are routed to the correct Public Safety Answering Point (PSAP) using geographic queries that rely entirely on precise GIS information. When data is incomplete or incorrect, calls can be misrouted—delaying the help that people depend on during emergencies. Maintaining highly accurate, comprehensive GIS data remains a top priority for 911 operations.

As we prepare for the 2026 FIFA World Cup, I have been watching for opportunities to strengthen our data ahead of the increased activity the event will bring. For example, while reviewing permits, I identified a new community park—Legacy Square in the City of Renton—where World Cup viewing events will take place, and ensured its address was added to the 911 database. I am also representing King County in Washington State’s FIFA World Cup 2026 GIS Workgroup, collaborating with partners statewide to determine how our GIS capabilities can best support this major event.

I look forward to continuing this work with all of you and helping ensure King County’s 911 data remains among the strongest, most accurate, and most dependable in the nation.