How much flood risk does Osborne County actually carry?
Osborne County lands at the 18.5th percentile of FEMA's National Risk Index for flooding, "Very Low" territory — among the lowest flood hazard in the country — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 1 years. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Mandatory flood insurance compliance in Osborne County
Osborne County is one of the counties where FEMA's own denominator for mandated flood-zone structures is missing, so no compliance rate is shown rather than a guessed one — the data quality guide covers how common this is. Across all residential structures in Osborne County, not just the ones FEMA mandates, 0% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Osborne County ranks
Osborne County sits at rank 2602 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2931 of 3144 by population (1 is biggest). Osborne County, Kansas is home to about 3,353 people across 892.516 square miles of land.
Checking a specific address in Osborne County
0 of Osborne County's 3,133 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Osborne County's numbers. See the data quality guide for why Osborne County, like hundreds of other counties, doesn't get a clean compliance percentage.