Johnson, KS
Johnson County in Kansas has 3 FEMA disaster declarations on record covering 1977–2005, most recently Hurricane Katrina Evacuation on Sep 10, 2005 (DR-3236). Its flood risk grade is A (Low risk), ranking #435 of 3,277 U.S. counties, with 20 NFIP flood insurance claims totaling $273,286 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Johnson County
The 3 most recent federally declared disasters affecting Johnson County, KS (1977–2005). Total declarations on record: 3.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 10, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3236 |
| Jul 22, 1993 | Flood | Severe Storms & Flooding | DR-1000 |
| Sep 20, 1977 | Flood | Severe Storms & Flooding | DR-539 |
Score Breakdown
The composite score of 17 is calculated from four weighted factors. See our methodology for details.
Other Counties in Kansas
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Sedgwick | A | 17 | 31 | 4 |
| Riley | A | 16 | 15 | 2 |
| Butler | A | 12 | 10 | 5 |
| Atchison | A | 11 | 0 | 6 |
| Doniphan | A | 11 | 2 | 6 |
| Leavenworth | A | 11 | 6 | 6 |
More Counties in Kansas
Frequently Asked Questions
How many FEMA disaster declarations does Johnson County, KS have?
Johnson County, KS has 3 federal disaster declarations on FEMA record (1977–2005). The 3 most recent are: Hurricane Katrina Evacuation (declared Sep 10, 2005, DR-3236); Severe Storms & Flooding (declared Jul 22, 1993, DR-1000); Severe Storms & Flooding (declared Sep 20, 1977, DR-539). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Johnson County, KS?
Johnson County is graded A (composite score 17/100, low risk). It ranks #435 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).
How many NFIP flood insurance claims have been filed in Johnson County?
20 NFIP flood insurance claims have been filed in Johnson County, KS, totaling $273,286 in payouts. The average claim is $13,664. Source: FEMA FimaNfipClaims v2 dataset.
Has Johnson County, KS had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Johnson County was Hurricane Katrina Evacuation on Sep 10, 2005 (DR-3236). The county has 3 declared disasters in the OpenFEMA record covering 1977–2005.
For this entity, the underlying data on this page comes from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FEMA OpenFEMA datasets, 2026.