Natural hazards · Sangamon Valley

Sangamon Valley, IL natural hazards

Most of the natural-hazard damage FEMA expects in Sangamon Valley comes from cold waves, and overall the risk is high for a U.S. community.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Sangamon Valley?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Sangamon Valley to be higher than in 78% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves40%Inland flooding23%Drought17%Strong wind8%Heat waves6%Everything else8%

By hazard

What Sangamon Valley faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Cold waves

40% of expected damage

Above average · higher than 57% of U.S. places

Recorded about 4 times a year in the area

Inland flooding

23% of expected damage

Well above average · higher than 90% of U.S. places

Recorded about once a year in the area

Drought

17% of expected damage

Recorded about 5 times a year in the area

Strong wind

8% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about 5 times a year in the area

Heat waves

6% of expected damage

Above average · higher than 70% of U.S. places

Recorded about 8 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherWildfireEarthquakesLandslidesLightning

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic activity

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does Sangamon Valley flood?

FEMA's records show no paid flood insurance claims in Sangamon Valley.

of homes in flood zones
are insured

of all homes
are insured

No community discount. Sangamon Valley isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Cass County.

Disasters that hit Sangamon Valley

Federal disasters declared here

None of the disasters declared for Cass County shows FEMA aid or repair money reaching Sangamon Valley itself in FEMA’s records.

Brought FEMA money into Sangamon ValleyDeclared for Cass County only

Cass County has had 19 natural disasters declared since 1953, most often floods and severe storms.

Around Sangamon Valley

Sangamon Valley and the towns around it

Very lowLowModerateHighVery high

Lynchburgmostly inland floodingVery high

Bathmostly inland floodingVery high

Sangamon Valleymostly cold wavesHigh

Bluff Springsmostly cold wavesHigh

Virginiamostly cold wavesHigh

Panther Creekmostly cold wavesHigh

Chandlervillemostly cold wavesHigh

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Sangamon Valley is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Sangamon Valley’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Sangamon Valley. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

Sources: FEMA National Risk Index (December 2025); 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. Census tracts: U.S. Census Bureau.