Scott County, IA: Tornado Risk and Shelter Cost
Scott County's tornado history, by the numbers
NOAA's Storm Prediction Center has recorded 64 tornado tracks touching Scott County since 1954 - about one every 1.2 years on average. That puts it in our High band nationally. Against the rest of the country, that is the 94th percentile for frequency. Iowa has 99 counties in this dataset; Scott County ranks 4 of them by frequency.
Has Scott County ever had a violent tornado?
Nothing violent in Scott County's file: 64 tracks total, topping out at significant (EF2-3) strength on 15 of them, zero at EF4-5.
Paying for it, if Scott County's history says you should
A storm shelter or in-residence safe room typically runs $2,890-$13,280 nationally, around $7,645 for a common single-family installation. No state-administered rebate program specific to Iowa was confirmed for this site - FEMA's own Hazard Mitigation Assistance grants fund 75% of an approved safe room nationwide, but only some states currently run a homeowner-facing application on top of that.
The gap a shelter does not cover
Power loss after a tornado outbreak in Iowa often reaches homes the storm itself never touched. A battery-backup unit covers the outage without the fuel and venting a generator needs.
County-level, not address-level
Treat this as a county-wide figure, not a prediction for one address. Scott County covers about 458 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. And records from before the 1990s, NOAA notes, undercount weaker tornadoes in areas with less storm-spotting coverage at the time. Scott County has about 175,601 residents.