FEMA flood zones · Ohio

Highland County, Ohio Flood Zone Map

2 flood insurance claims·$11,992 paid

4% of Highland 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 Highland County, Ohio. 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 Highland County floods

Flash flooding and general flooding driven by heavy seasonal rainfall dominate the flood profile of Highland County. Over the last 30 years, the NOAA Storm Events Database recorded 48 flash flood events and 32 general flood events. Heavy precipitation systems frequently produce widespread inundation across the region, as demonstrated when 1.5 to 2.5 inches of rain caused widespread flooding on February 18, 2022. Similarly, a warm front dropped two to three inches of rain across much of the area on February 28, 2021, and persistent heavy rains developed along an oscillating frontal boundary on June 19, 2019.

Federal records indicate limited historical National Flood Insurance Program participation, with Zone A accounting for two recorded claims averaging $5,996 each, with an average recorded water depth of 0 inches.

Homeowners, real estate agents, and journalists should pay the most attention to properties located within Zone A, as these areas carry documented flood claim history and face the greatest direct exposure when heavy rainfall systems move through the Ohio Valley.

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

In their words

5 NOAA storm reports from Highland County describe what happened, in the words of the forecasters who covered it. Read the Ohio flood stories →

Federal disasters

12 federal disaster declarations since 1965.

DisasterBegan
Severe StormsJun 29, 2012
Severe Storms And Straight-line WindsJun 29, 2012
Severe Wind Storm Associated With Tropical Depression IkeSep 14, 2008
Hurricane Katrina EvacuationAug 29, 2005
Severe Winter Storms, Flooding, And MudslidesDec 22, 2004
Severe Storms And FloodingAug 27, 2004
Severe Storms And FloodingFeb 28, 1997
Blizzards & SnowstormsJan 26, 1978

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

Recorded flood events

80 since 1996: 48 flash floods and 32 river or area floods.

EventDateDamage
FloodFeb 16, 2025—
FloodJun 6, 2025—
Flash FloodJun 6, 2025$20,000
Flash FloodJun 6, 2025$50,000
Flash FloodMay 4, 2024—
Flash FloodMay 4, 2024$40,000
FloodFeb 18, 2022—
FloodFeb 28, 2021—

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

From the storm reports

Flood · Feb 16, 2025. A low pressure system brought heavy rainfall to the region as it moved through the Ohio Valley.

Flood · Jun 6, 2025. Isolated, slow moving showers and thunderstorms produced localized heavy rain and flooding.

Flash Flood · Jun 6, 2025. Isolated, slow moving showers and thunderstorms produced localized heavy rain and flooding.

Flash Flood · May 4, 2024. A stalled stationary front in southern Ohio sparked showers and thunderstorms.

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 Highland County

If a building in Highland 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.