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Rio Arriba County, New Mexico

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Low overall risk
11th of 33highest risk in New Mexico
$27Mexpected losses a year
15federal declarations
1 in 143homes with flood insurance
Photo: U.S. Geological Survey, public domain

Rio Arriba County, New Mexico has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 80% of US counties. It ranks 11th of 33 counties in New Mexico. The costliest hazards here are inland flooding, wildfires and lightning. FEMA estimates about $27 million a year in expected losses, or roughly $660 per resident. Since 1973 it has been included in 15 federal disaster or emergency declarations for natural events (9 major disasters). The most recent was in October 2026 (severe storms and flooding). Fewer than 1 in 100 homes here carry federal flood insurance (147 policies). Since 1978, federal flood insurance has paid about $329,000 on 31 claims here.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Rio Arriba County

$20.3 million a yearExpected losses. Damaging events about once a year.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.

Wildfire

Moderate
$3.2 million a yearExpected losses. Damaging events about once every 335 years.
  • Clear dry plants and debris within 5 feet of the house.
  • Get home insurance quotes early; availability varies by area.
$1.1 million a yearExpected losses. Damaging events about 65 times a year.
  • Go indoors when you hear thunder.
  • Use surge protectors for electronics.
HazardRatingScoreExpected loss a year
Inland floodingModerate88.4
$20M
WildfireModerate96.2
$3M
LightningHigh94.6
$1M
EarthquakeLow79.4
$954K
DroughtModerate70.4
$326K
Cold waveLow30.5
$265K
Heat waveVery Low30.2
$85K
LandslideModerate95.0
$78K
HailVery Low27.5
$65K
Strong windVery Low12.7
$62K
TornadoVery Low11.7
$53K
Winter weatherLow47.1
$36K
Ice stormVery Low9.2
$3K
AvalancheVery Low41.8
$179

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is very high and community resilience is very low in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Rio Arriba County. 2020s bar runs to November 2026.

By type

Fire5
Flood4
Severe Storm4
Drought1
Hurricane1

Most recent

Oct 26, 2026Severe Storms and FloodingEmergency
Jun 20, 2024South Fork Fire, Salt Fire, and FloodingMajor disaster
Oct 6, 2014Severe Storms and FloodingMajor disaster
Oct 29, 2013Severe Storms, Flooding, and MudslidesMajor disaster
Jun 26, 2011Las Conchas FireFire management
Mar 24, 2011Severe Winter Storm and Extreme Cold TemperaturesMajor disaster
Aug 30, 2006Severe Storms and FloodingMajor disaster
Sep 7, 2005Hurricane Katrina EvacuationEmergency
May 23, 2002Nm - Borrego Fire - 5-23-02Fire management
May 13, 2000Severe Forest FireMajor disaster
Show all 15
May 10, 2000Severe Fire ThreatsEmergency
Sep 22, 1999Severe Ice Storms, Flooding and Heavy RainsMajor disaster
Jun 23, 1979Severe Storms, Snowmelt & FloodingMajor disaster
Mar 2, 1977DroughtEmergency
May 11, 1973Severe Storms, Snow Melt & FloodingMajor disaster

New Mexico also had 42 statewide declarations that did not name single counties.

Storm history since 1955

Tornado risk by county ›

The National Weather Service has logged 121 storm reports in Rio Arriba County since 1955, with 3 deaths and 3 injuries and about $6.5 million in reported damage. The strongest on record here was an EF1 tornado on September 29, 2014 near Monero.

2tornadoes
41hail reports, largest 2 inches
23damaging thunderstorm winds
45floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Sep 29, 2014EF1Monero0 / 0
Sep 29, 1998F0Nutrias0 / 0

Most damaging storms

DateTypeNearDamage
Aug 22, 2016Flash FloodHernandez$2M
Jul 7, 2015Flash FloodCanones$1M
Sep 15, 2013Flash FloodSanta Clara Pueblo$500K
Jun 20, 2024Flash FloodEspanola$500K
Jul 7, 1998Flash FloodEspanola$300K
Jul 14, 2014Flash FloodEl Llano$300K

Source: NOAA Storm Events Database, county-based reports through Aug 29, 2025. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Flood insurance in Rio Arriba County

Check your address flood zone ›
0.7%of homes have federal flood insurance (147 policies)
8.1%of homes in mapped high-risk flood zones are insured
$329,388paid on 31 flood claims since 1978
2013costliest year, with $185,683 paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Rio Arriba County

$243,700median home value (New Mexico $248,100, US $332,700)
1984median year homes were built (New Mexico 1985, US 1980)
44%of homes built before 1980, before many modern wind, quake and flood building rules
35.9%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 19,862 housing units.

Compare in New Mexico

All 33 ›
Largest countiesOverall riskTop hazard
Bernalillo CountyHighInland flooding
Doña Ana CountyHighInland flooding
Santa Fe CountyModerateInland flooding
Sandoval CountyLowInland flooding
San Juan CountyModerateInland flooding
Valencia CountyModerateInland flooding
Lea CountyModerateInland flooding
McKinley CountyLowInland flooding

Neighboring counties

CountyOverall riskDeclarations
Santa Fe CountyModerate8
Sandoval CountyLow20
San Juan CountyModerate10
Taos CountyLow8
Los Alamos CountyVery Low8
Archuleta County, COVery Low6
Conejos County, COVery Low5
Mora CountyVery Low18

Common questions about Rio Arriba County

What is the biggest natural hazard in Rio Arriba County?

Inland flooding has the highest expected yearly losses in Rio Arriba County, about $20.3 million a year in FEMA's estimate. Wildfire is second at $3.2 million.

How many federal disasters has Rio Arriba County had?

Rio Arriba County has been included in 15 federal disaster or emergency declarations for natural events since 1973, including 9 major disasters. The most recent was Severe Storms and Flooding in October 2026.

Is Rio Arriba County a high-risk place to live?

Its overall rating is Relatively Low, 11th highest of 33 in New Mexico. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Rio Arriba County?

Standard home insurance does not cover flooding. About 1 in 143 homes in Rio Arriba County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Rio Arriba County had?

NOAA records list 2 tornadoes in Rio Arriba County since 1950. The strongest was an EF1 tornado on September 29, 2014 near Monero. The weather service has also logged 41 hail reports and 45 floods here.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.