Bennett County, SD Tornado Risk & Storm Shelter Cost
Bennett County's tornado history, by the numbers
Since 1956, NOAA has logged 31 tornado tracks crossing Bennett County - one about every 2.5 years, which lands it in our Elevated band. Nationally, Bennett County ranks at the 70th percentile for tornado frequency. South Dakota has 66 counties in this dataset; Bennett County ranks 28 of them by frequency.
Bennett County's EF4-5 history
Bennett County's record has no EF4-5 tornado - its 31 tracks split 26 weak and 4 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Bennett County
For a Bennett County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no South Dakota-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
3,289 people live in Bennett County, and a tornado outbreak's power loss usually reaches far more of South Dakota than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Bennett County covers about 1,185 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. Pre-radar-era records (before the 1990s) are also documented by NOAA as undercounting weaker tornadoes in sparsely-instrumented areas. Bennett County has about 3,289 residents.