Property Atlas

County hazard profile

Knox, TN

Tennessee · pop. 478,842 · FIPS 47093

Relatively Moderate
FEMA risk rating · RATING
Lightning
dominant hazard
$131M
modeled expected annual loss/yr

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

near the national middle (41st percentile)

national median $15M/yr Knox $131M

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 Moderate 92.11/100
national median ~50 among the highest nationally
Social vulnerabilityRelatively Low 22.68/100
national median ~50 among the lowest nationally
Community resilienceRelatively High 61.32/100
national median ~50 near the national middle (61st percentile)

Recorded · NFIP flood claims RECORDED

Realized flood losses in Knox

The National Flood Insurance Program has paid 597 flood-insurance claims totaling $7.9M in Knox since 1978. The costliest year was 2011 ($2.3M paid).

Flood-insurance dollars paid by year of loss

1978: $4,609 paid 1979: $99,084 paid 1980: $1,659 paid 1981: $60,450 paid 1982: $583,985 paid 1983: $2,466 paid 1984: $93,802 paid 1985: $0 paid 1987: $3,101 paid 1988: $0 paid 1989: $4,189 paid 1990: $4,911 paid 1992: $10,346 paid 1994: $46,884 paid 1997: $106,503 paid 1998: $902,400 paid 1999: $134,056 paid 2000: $6,894 paid 2001: $62,236 paid 2002: $118,665 paid 2003: $561,619 paid 2004: $77,365 paid 2006: $40,696 paid 2008: $9,936 paid 2009: $187,171 paid 2010: $10,907 paid 2011: $2,250,529 paid 2012: $42,829 paid 2013: $110,615 paid 2014: $0 paid 2015: $9,876 paid 2016: $10,298 paid 2017: $2,812 paid 2018: $7,715 paid 2019: $1,184,843 paid 2020: $664,441 paid 2021: $73,181 paid 2022: $122,334 paid 2023: $0 paid 2024: $289,722 paid 2011 · $2.3M 1978 2024
$7.9M
total paid
$13,238
average claim
$336K
largest single claim
51%
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 Knox, TN and where it ranks among U.S. counties. It is not a verdict on whether Knox 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.