Natural Disaster Risk in Johnson County

Natural Hazard Profile: Johnson County, Kansas

Johnson County is located in the United States in Kansas, home to roughly 609,569 residents. The county experiences hot summers, cold winters, and exposure at the heart of Tornado Alley, with one of the most intense tornado seasons in the world, peaking in May and June shaping the natural hazards faced by its communities. FEMA assesses risk at this county level, providing the baseline for every city and ZIP code within its boundaries.

According to FEMA's National Risk Index, Johnson County carries an overall risk score of 7.2/10, placing it in the high category. The area faces significant winter hazard exposure, with nor'easters, ice storms, or blizzards regularly challenging transportation networks and power infrastructure. The area also faces notable exposure to hail and heat.

Johnson County's risk score, considerably above the 5.2/10 state average and well above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Johnson County, the highest-scoring are winter, hail, and heat. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

With a high natural disaster risk rating, Johnson County residents benefit from taking preparedness seriously. Reviewing insurance coverage for winter and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.