Hamilton, OH
Hamilton County in Ohio has 5 FEMA disaster declarations on record covering 1968–2018, most recently Severe Storms, Landslides, and Mudslides on Apr 17, 2018 (DR-4360). Its flood risk grade is A (Low risk), ranking #2973 of 3,277 U.S. counties, with 68 NFIP flood insurance claims totaling $2,395,683 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Hamilton County
The 5 most recent federally declared disasters affecting Hamilton County, OH (1968–2018). Total declarations on record: 5.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Apr 17, 2018 | Flood | Severe Storms, Landslides, and Mudslides | DR-4360 |
| Sep 13, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3250 |
| Jun 24, 1996 | Flood | Flooding | DR-1122 |
| Jan 27, 1996 | Flood | Severe Storms and Flooding | DR-1097 |
| Jun 5, 1968 | Flood | Heavy Rains & Flooding | DR-243 |
Score Breakdown
The composite score of 8 is calculated from four weighted factors. See our methodology for details.
Other Counties in Ohio
More Counties in Ohio
Frequently Asked Questions
How many FEMA disaster declarations does Hamilton County, OH have?
Hamilton County, OH has 5 federal disaster declarations on FEMA record (1968–2018). The 5 most recent are: Severe Storms, Landslides, and Mudslides (declared Apr 17, 2018, DR-4360); Hurricane Katrina Evacuation (declared Sep 13, 2005, DR-3250); Flooding (declared Jun 24, 1996, DR-1122); Severe Storms and Flooding (declared Jan 27, 1996, DR-1097); Heavy Rains & Flooding (declared Jun 5, 1968, DR-243). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Hamilton County, OH?
Hamilton County is graded A (composite score 8/100, low risk). It ranks #2973 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 Hamilton County?
68 NFIP flood insurance claims have been filed in Hamilton County, OH, totaling $2,395,683 in payouts. The average claim is $35,231. Source: FEMA FimaNfipClaims v2 dataset.
Has Hamilton County, OH had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Hamilton County was Severe Storms, Landslides, and Mudslides on Apr 17, 2018 (DR-4360). The county has 5 declared disasters in the OpenFEMA record covering 1968–2018.
this entity is one of the data points covered by this site’s U.S. flood risk, NFIP claims, and disaster declarations dataset. The detail above comes directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the context that follows situates the headline numbers against the broader distribution across U.S. ZIPs, counties, and states.
The methodology behind every numeric value on this page is publicly documented on the FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FEMA OpenFEMA datasets, 2026.