Property Atlas

County hazard profile

Brown, SD

South Dakota · pop. 38,265 · FIPS 46013

Relatively Low
FEMA risk rating · RATING
Winter Weather
dominant hazard
$37M
modeled expected annual loss/yr

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

among the lowest nationally

national median $15M/yr Brown $37M

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 73.54/100
national median ~50 near the national middle (74th percentile)
Social vulnerabilityRelatively Low 24.14/100
national median ~50 among the lowest nationally
Community resilienceVery High 85.62/100
national median ~50 higher than 86% of counties

Recorded · NFIP flood claims RECORDED

Realized flood losses in Brown

The National Flood Insurance Program has paid 484 flood-insurance claims totaling $3.3M in Brown since 1978. The costliest year was 2007 ($1.9M paid).

Flood-insurance dollars paid by year of loss

1978: $261,196 paid 1979: $24,485 paid 1980: $1,435 paid 1982: $502 paid 1983: $40,012 paid 1984: $358 paid 1986: $2,486 paid 1993: $0 paid 1995: $3,750 paid 1997: $441,214 paid 1999: $11,351 paid 2000: $0 paid 2001: $2,961 paid 2004: $2,396 paid 2007: $1,943,510 paid 2009: $106,633 paid 2010: $178,173 paid 2011: $265,545 paid 2013: $763 paid 2019: $404 paid 2022: $2,210 paid 2007 · $1.9M 1978 2022
$3.3M
total paid
$6,796
average claim
$151K
largest single claim
35%
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 Brown, SD and where it ranks among U.S. counties. It is not a verdict on whether Brown 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.