Photo: Ross G. from Bloomington-Normal, Illinois · CC BY 2.0For ice storms, Mayville’s building-damage rate is in the top 2% of U.S. census tracts
On FEMA’s National Risk Index, Mayville gets a B for hazard risk: lower expected damage per building than 59% of U.S. towns. Most of that expected damage is river and rain flooding (56%), then tornadoes (16%). Flood insurance has paid 29 claims here since 1979.
Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded
What stands out about Mayville’s natural hazards
From FEMA’s model and FEMA’s records, below.
What Mayville faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
River and rain flooding
Tornadoes
Ice storms
Hail
Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.
What’s behind Mayville’s grade
River and rain flooding is 56% of the building damage FEMA expects in Mayville, and Mayville’s rate of river and rain flooding damage is lower than 67% of U.S. census tracts. Tornadoes add 16%, at a rate in the top 8% of U.S. census tracts.
B lower expected damage per building than 59% of U.S. towns (21,298).
All of Mayville’s residents live in one census tract; the figures are that tract’s.
In dollars, FEMA expects about $881K a year in losses across Mayville: $731K to buildings, the rest to people and crops.
Does Mayville flood? Sometimes: 29 flood claims since 1979
Every paid claim on a federal flood insurance policy in Mayville, from FEMA’s records: 32.8 per 1,000 homes, more than 89% of the 13,809 U.S. towns with a flood insurance record.
- The Midwest Flooding4 claims · $11K
- The Late spring storms1 claim · $14K
Mayville isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Traill County.9 federal disasters brought FEMA money to Mayville
Disasters that paid out in Mayville itself (aid to households or repair grants to the City of Mayville), newest first, with that year’s flood claims.
- 2025Severe Storm, Tornadoes, and Straight-line Winds$25K to the City of Mayville for repairs
- 2022Severe Winter Storm and Flooding$4.3M to the City of Mayville for repairs
- 2011Flooding$27K to the City of Mayville for repairs1 flood claim paid that year
- 2010Flooding$4K to the City of Mayville for repairs1 flood claim paid that year
- 2009Severe Storms and Flooding21 households applied for aid$89K aid approved$22K to the City of Mayville for repairs5 flood claims paid that year
- 2004Severe Storms, Flooding, and Ground Saturation$7K to the City of Mayville for repairs2 flood claims paid that year
Show all 9
- 2001Severe Storms, Flooding, and Ground Saturation$20K to the City of Mayville for repairs
- 2000Severe Storms, Flooding and Ground Saturation$4K to the City of Mayville for repairs
- 1999Severe Storms, Flooding, Snow, Ice, Ground Saturation, Lanslides, Mudslides, and Tor$6K to the City of Mayville for repairs
Traill County has had 31 natural disasters declared by the President since 1953, most often floods, then severe storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of Mayville after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Mayville archive →Mayville and its neighbors
Mayville has the lowest expected damage per building of the 1 graded towns here. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Mayville | Bless damage than 59% | river and rain flooding | 29 |
| Mayville Township | — | 134 residents; we grade 1,000+ | |
| Lindaas Township | — | 44 residents; we grade 1,000+ | |
| Viking Township | — | 134 residents; we grade 1,000+ | |
Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.
Get ready for what Mayville faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- Turn around at flooded roads: a foot of moving water can carry off a car.
- Flood insurance usually takes 30 days to start, so buy it before the forecast.
- Keep papers and medicines up high, in a grab-and-go bag.
- Pick your spot now: the lowest floor, an inside room, no windows.
- A watch means be ready; a warning means take cover now.
- Keep shoes and a flashlight by the bed.
- Ice brings down trees and lines: plan for days without power.
- Run a generator outside, far from doors and windows.
- Keep sand or salt by the door.
- Park in a garage or under cover when storms are forecast.
- Stay away from windows while it falls.
- Photograph roof and car damage for your insurer.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Mayville
Is Mayville at risk for natural disasters?
On FEMA’s National Risk Index, Mayville has lower expected damage per building than 59% of U.S. towns: B for hazard risk. Most of the expected damage is river and rain flooding (56%) and tornadoes (16%). The figures are for the one census tract the town shares with its neighbors. This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Mayville flood?
Flood insurance has paid 29 claims in Mayville since 1979, $409K in all, or 32.8 per 1,000 homes, more than 89% of U.S. towns with a flood insurance record. 3 properties have flooded more than once. The most claims came from Midwest Flooding (4).
Is Mayville in a flood zone?
Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Traill County, 21% of homes in mapped flood zones carry federal flood insurance, and 0.8% of all homes do.
How much is flood insurance in Mayville?
FEMA’s Community Rating System list shows no discount for Mayville’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in Mayville?
By FEMA money that reached Mayville, Severe Winter Storm and Flooding (2022): $4.3M to the City of Mayville for repairs. By flood claims, Midwest Flooding: 4 paid, $11K.
Is Mayville at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (56%), and Mayville’s rate for it is lower than 67% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Mayville.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Mayville’s residents lived in the 2020 census; OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.