Photo: Chris Light · CC BY-SA 4.0Storms, floods and disasters in South Prairie
South Prairie isn’t graded for hazard risk: South Prairie has 309 residents; we grade towns of 1,000 or more. Flood insurance has paid 19 claims here since 1982.
What South Prairie faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
River and rain flooding
Earthquakes
Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.
Does South Prairie flood? Sometimes: 19 flood claims since 1982
Every paid claim on a federal flood insurance policy in South Prairie, from FEMA’s records.
- The 2025-12-AtmosphericRiver3 claims · $31K
- The Torrential rain1 claim · $10K
South Prairie isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Pierce County.5 federal disasters brought FEMA money to South Prairie
Disasters that paid out in South Prairie itself (aid to households or repair grants to the Town of South Prairie), newest first, with that year’s flood claims.
- 2025Severe Storms, Straight-line Winds, Flooding, Landslides, and Mudslides1 households applied for aid$8K aid approved$10K to the Town of South Prairie for repairs3 flood claims paid that year
- 2012Severe Winter Storm, Flooding, Landslides, and Mudslides$5K to the Town of South Prairie for repairs
- 2009Severe Winter Storm, Landslides, Mudslides, and Flooding10 households applied for aid$20K aid approved$59K to the Town of South Prairie for repairs6 flood claims paid that year
- 2006Severe Storms, Flooding, Landslides, and Mudslides2 households applied for aid$250 aid approved2 flood claims paid that year
- 2001Earthquake$902 to the Town of South Prairie for repairs
Pierce County has had 21 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Also 1 FEMA wildfire suppression grant (Fire Management Assistance, not a disaster declaration) for fires in Pierce County, 2020–2020.
Old photos of South Prairie after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the South Prairie archive →Get ready for what South Prairie faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- Turn around at flooded roads: a foot of moving water can carry off a car.
- Flood insurance usually takes 30 days to start, so buy it before the forecast.
- Keep papers and medicines up high, in a grab-and-go bag.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in South Prairie
Does South Prairie flood?
Flood insurance has paid 19 claims in South Prairie since 1982, $237K in all. 4 properties have flooded more than once. The most claims came from 2025-12-AtmosphericRiver (3).
Is South Prairie in a flood zone?
Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Pierce County, 44% of homes in mapped flood zones carry federal flood insurance, and 0.7% of all homes do.
How much is flood insurance in South Prairie?
FEMA’s Community Rating System list shows no discount for South Prairie’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in South Prairie?
By FEMA money that reached South Prairie, Severe Winter Storm, Landslides, Mudslides, and Flooding (2009): 10 households applied for aid, $20K approved, and $59K to the Town of South Prairie for repairs. By flood claims, 2025-12-AtmosphericRiver: 3 paid, $31K.
Storm stories
Memories, warnings and help from neighbors in South Prairie.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where South Prairie’s residents lived in the 2020 census; OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.