FEMA’s National Risk Index rates natural-hazard risk for Grimes CDP, CA as Relatively Moderate (composite score 81.1), which is elevated versus much of the country. The strongest component scores on US5 are wildfire (89.1) and flood (37.9). 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.
Climate normals for Grimes CDP, CA show little to no average snow and around 17.2 inches of annual precipitation.
IRS migration statistics show a net inflow of about 22 for ZIP 95950 (Grimes CDP, CA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.