Property Atlas

County hazard profile

Trempealeau, WI

Wisconsin · pop. 30,701 · FIPS 55121

Relatively Low
FEMA risk rating · RATING
Landslide
dominant hazard
$20M
modeled expected annual loss/yr

Expected annual loss · all 3,232 U.S. counties

among the lowest nationally

national median $15M/yr Trempealeau $20M

A real dollar distribution: most counties sit far below a handful of high-exposure ones. A FEMA model of annual loss, not a record of disasters.

FEMA national percentile scores

FEMA/CDC score each county 0–100 against all others — the score is the national rank (RATING). Higher risk and vulnerability are worse; higher resilience is better.

FEMA risk indexRelatively Low 58.65/100
national median ~50 near the national middle (59th percentile)
Social vulnerabilityRelatively Moderate 40.65/100
national median ~50 near the national middle (41st percentile)
Community resilienceRelatively High 70.2/100
national median ~50 near the national middle (70th percentile)

Recorded · NFIP flood claims RECORDED

Realized flood losses in Trempealeau

The National Flood Insurance Program has paid 141 flood-insurance claims totaling $2.6M in Trempealeau since 1986. The costliest year was 2017 ($1.1M paid).

Flood-insurance dollars paid by year of loss

1986: $1,763 paid 1992: $8,917 paid 1993: $89,904 paid 1995: $730 paid 1996: $0 paid 1997: $105,949 paid 1998: $23,648 paid 2001: $207,218 paid 2010: $587,452 paid 2011: $42,124 paid 2014: $25,192 paid 2015: $15,850 paid 2016: $9,533 paid 2017: $1,068,410 paid 2018: $4,489 paid 2019: $274,885 paid 2023: $138,824 paid 2024: $8,997 paid 2017 · $1.1M 1986 2024
$2.6M
total paid
$18,538
average claim
$563K
largest single claim
84%
in high-risk flood zones (A/V)

RECORDED — these are actual paid NFIP claims (a redacted census from OpenFEMA), not a model. They are the realized counterpart to the FEMA risk score above: one is what happened and got paid, the other is what a model predicts.

Scope: these are flood-insurance claims, so they undercount flooding where owners were uninsured — read this as "what NFIP paid here," not "every flood." County-level totals, not a per-property or per-address verdict. Verify a specific address and buy coverage at FloodSmart.gov; the underlying data is OpenFEMA NFIP Redacted Claims.

What these figures mean

  • RATING — the FEMA risk score, expected loss, social vulnerability, and resilience are FEMA/CDC models, not records of disasters that happened. The 0–100 scores are already national percentiles.
  • MEASURED — population is a recorded census figure.
  • COMPUTED — the county's rank within the dollar-loss distribution is our placement over the 3,232 counties.
  • CONTEXT — the note below is framing, not a measurement.

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What this is — and is not

This is FEMA/CDC modeled hazard exposure for Trempealeau, WI and where it ranks among U.S. counties. It is not a verdict on whether Trempealeau is a good or bad place to live — hazard exposure is not place quality, and a county can't opt out of its geography. It is not a per-property or per-address risk assessment, not a prediction of any specific disaster, and not insurance advice. For site-specific risk use a per-property assessment; for the underlying model see FEMA National Risk Index.