ZIP 63373 — Climate & Environment

FEMA’s National Risk Index rates natural-hazard risk for Portage Des Sioux city, MO as Relatively Moderate (composite score 92.6), which is among the highest nationally. The strongest component scores on US5 are flood (94.2) and wildfire (58.8). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.