Property Atlas

County hazard profile

Jefferson, WI

Wisconsin · pop. 84,877 · FIPS 55055

Relatively Low
FEMA risk rating · RATING
Hail
dominant hazard
$42M
modeled expected annual loss/yr

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

among the lowest nationally

national median $15M/yr Jefferson $42M

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 75.8/100
national median ~50 higher than 76% of counties
Social vulnerabilityVery Low 19.82/100
national median ~50 among the lowest nationally
Community resilienceVery High 92.14/100
national median ~50 among the highest nationally

Recorded · NFIP flood claims RECORDED

Realized flood losses in Jefferson

The National Flood Insurance Program has paid 502 flood-insurance claims totaling $11.0M in Jefferson since 1978. The costliest year was 2008 ($9.0M paid).

Flood-insurance dollars paid by year of loss

1978: $0 paid 1979: $302,414 paid 1982: $28,679 paid 1984: $0 paid 1985: $6,660 paid 1986: $39,476 paid 1993: $549,488 paid 1996: $30,850 paid 1998: $869 paid 1999: $0 paid 2000: $43,188 paid 2004: $206,316 paid 2005: $0 paid 2007: $29,786 paid 2008: $8,980,917 paid 2009: $6,112 paid 2010: $23,074 paid 2013: $220,393 paid 2016: $1,073 paid 2018: $517,603 paid 2019: $13,672 paid 2021: $7,102 paid 2022: $6,908 paid 2026: $0 paid 2008 · $9.0M 1978 2026
$11.0M
total paid
$21,941
average claim
$1.0M
largest single claim
88%
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 Jefferson, WI and where it ranks among U.S. counties. It is not a verdict on whether Jefferson 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.