FEMA flood zones · Indiana

Greene County, Indiana Flood Zone Map

10 flood insurance claims·$140,973 paid·4 federal flood & hurricane disasters

20% of Greene County’s area is in FEMA’s high-risk flood zones.

Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.

Coastal high risk (V, VE)FloodwayHigh risk (A, AE)Moderate (X, 500-year)Minimal (X)Undetermined (D)

Shaded areas are FEMA’s mapped flood hazard zones in and around Greene County, Indiana. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.

How Greene County floods

Greene County experiences flood risks primarily driven by prolonged heavy rainfall leading to river overflows and flash flooding, with 88 flood events and 26 flash flood events recorded over the last 30 years. Heavy rain events, such as those in February 2019 and September 2018, have produced over 4 inches of rain over a couple of days, causing widespread flash flooding and extensive river and stream flooding. Slow-moving thunderstorms also caused flash flooding in southwestern Greene County in March 2024, and multi-day rainfall totals reached up to 4.5 inches in April 2025, pushing main stem rivers to major flood stage.

National Flood Insurance Program records indicate historical claims across multiple zones, including an average payout of $24,486 with an average recorded water depth of 8 inches in Zone A. Properties mapped in Zone X also experienced claims, averaging $17,038 with an average recorded water depth of 2 inches, while properties with unknown zones averaged $27,471 with an average recorded water depth of 9 inches. Homeowners, real estate agents, and journalists should pay the closest attention to properties near rivers and streams, as well as structures located in Zone A and unmapped or unknown flood zones, which remain vulnerable to significant surface water and rising river levels during heavy precipitation events.

Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.

How deep the water got

outlet80″ door12″24″36″48″60″72″84″

In flood insurance claims here that reported a flood depth, the average was 7 inches.

Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.

Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.

Flood claims, year by year

The worst year was 2008, with 2 claims and $80,584 paid, the year of Severe Storms, Flooding, and Tornadoes.

1995: 1 claims2008: 2 claims2011: 1 claims2013: 2 claims2019: 1 claims2022: 1 claims2025: 2 claims19801990200020102020

Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.

In their words

27 NOAA storm reports from Greene County describe what happened, in the words of the forecasters who covered it. Read the Indiana flood stories →

Federal disasters

19 federal disaster declarations since 1979, 4 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter StormJan 23, 2026
Severe Storms, Straight-line Winds, Tornadoes, And FloodingMar 30, 2025
Severe Storms, Flooding, And TornadoesMay 30, 2008
Hurricane Katrina EvacuationAug 29, 2005
Severe Winter Storms And FloodingJan 1, 2005
SnowDec 21, 2004
Severe Storms, Tornadoes And FloodingJul 3, 2004
Severe Storms, Tornadoes, And FloodingMay 25, 2004

Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.

Recorded flood events

114 since 1996: 26 flash floods and 88 river or area floods.

EventDateDamage
Flash FloodApr 4, 2025$50,000
Flash FloodMar 5, 2024$10,000
Flash FloodFeb 7, 2019$15,000
Flash FloodSep 8, 2018$500
Flash FloodJan 3, 2015$20,000 · 1 killed
FloodApr 7, 2014$100 · 1 killed
Flash FloodJun 26, 2013$7,000
FloodJun 26, 2013$500

— = no damage estimate in the record. Source: NOAA Storm Events Database.

From the storm reports

Flash Flood · Apr 4, 2025. The final round of rain in a stretch of 4 days brought rain amounts of 2-4.5 inches of rain to central Indiana in addition to the 3-5 inches that had fallen. This led to additional widespread flash flooding and exacerbated ongoing creek and river flooding to a point that many main stem rivers ended up reaching major flood stage.

Flash Flood · Mar 5, 2024. During the late afternoon into early evening hours of March 5th, slow moving to nearly stationary thunderstorms caused periods of heavy rain across south central Indiana with pockets of flash flooding in both Washington, Indiana and southwestern Greene County. Rain gauges reported up to 3.75 inches of rainfall near these areas of flash flooding.

Flash Flood · Feb 7, 2019. A low pressure system moved into the forecast area bringing plentiful moisture and produced thunderstorms and waves of moderate to heavy rain to central Indiana around February 7th. The storms produced a tornado in a strong shear and low instability environment. Over 4 inches of rain fell in a couple of days in some areas. The heavy rain produced flash flooding, and extensive flooding developed along rivers and st…

Flash Flood · Sep 8, 2018. The remnants of Tropical Storm Gordon interacted with a surface front to produce widespread heavy rain across much of central Indiana. The moisture content of the atmosphere was very high. Precipitable water, a measure of moisture content in the atmosphere, is normally around 1 inch for early September in Indiana. Precipitable water amounts approached 2 inches for parts of the area on September 8th. Heavy rainfall…

National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.

The zones you’ll see on the map

Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.

Cross-section of a river floodplainDiagram: a river valley. The floodway is the channel and the land beside it; the 1%-annual-chance flood surface (the base flood elevation) covers the valley floor as zone A or AE; a narrow band higher up is shaded X, the 0.2% floodplain; higher ground is X.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXAEFloodwayAEX
  1. A / AE Inside the 1%-a-year floodplain: about a 26% chance of flooding over a 30-year mortgage. AE has a mapped base flood elevation; plain A does not.
  2. Floodway The channel and the land beside it that has to be kept clear enough to carry the flood. Building here is tightly limited.
  3. X shaded The 0.2% (500-year) floodplain, plus some levee-protected and very shallow flood areas.
  4. X Outside both lines. No federal requirement to insure, which is not the same as no risk.

Every flood zone code explained →

Flood insurance in Greene County

If a building in Greene County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.

Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.