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Main Street, LiffordPhoto: Kenneth Allen · CC BY-SA 2.0
CHazard risk Grade
Flood & hazards in Lifford · EPA, GSI and OPW data

Radon in Lifford: an estimated 9.7% of homes are above the reference level

With 8% of its homes standing low beside an estuary, Lifford grades C for hazard risk; flood counts only against a town, and here it does.

In brief

What stands out about Lifford’s hazards

From the EPA’s radon map, Geological Survey Ireland’s landslide map, the OPW’s flood relief schemes and our estimate of low-lying homes, below.

By hazard

What Lifford faces

Each hazard against its own yardstick; meters run from low to high on that yardstick.

Not on this page: the OPW’s official flood maps and past floods (their licence doesn’t allow reuse here: see floodinfo.ie), groundwater and surface-water flooding, coastal erosion and industrial sites.
Hazard risk Grade

Lifford grades C for hazard risk

Radon, landslide ground and low-lying homes, each against Irish towns, then averaged.

Radon (9.7%)Better than 25% of Irish towns
Landslide ground (0.2%)Better than 57% of Irish towns
Low-lying homes (8%)Better than 30% of Irish towns · counted against it

Each figure is placed among Irish towns of 1,000 or more people; the grade averages the three, so a better place on each is a better grade.

Flood counts only against a town, and Lifford’s share of low-lying homes is high enough to lower its grade.

Less sure: The low-lying figure is our estimate from ground heights and the river map, not an official flood map. It can show a town is low-lying; it can’t show a town is safe.

Low-lying homes

8% of Lifford’s homes stand low beside an estuary

Low-lying homes, a TownRatings estimate from OPW and Geological Survey Ireland LiDAR ground heights and the EPA’s river map: not an official flood map.

By a river, lake or estuary8%of homes within 5 m of the water’s level
Near the sea0%of homes below 4 m, within 2 km of the sea
Measured in detail100%of homes on detailed ground heights
Where Lifford sits among 231 Irish towns
43%None
6%Under 0.5%
4%0.5–1%
7%1–2%
8%2–5%
6%5–10%Lifford
8%10–20%
18%20% +

Share of each town’s homes standing low by big water, for the towns measured in detail. 43% have none; Lifford has more than 72% of them.

842
homes counted
67
homes standing low by big water
7.2%
County Donegal’s median
0.7%
median of Irish towns

Low-lying homes across County Donegal’s towns · 4 towns measured in detail

Donegal12%
Buncrana9.6%
Bundoran4.8%
Carndonagh0%

Homes: OpenStreetMap buildings of 30 m² or more, not tagged as non-residential, in the town’s Census 2022 Small Areas. Heights: GSI Open Topographic Data LiDAR (OPW, TII and GSI surveys). Water: EPA river network (rivers of Strahler order 5 or more), lakes, estuaries and coastal waters.

Warnings

Weather and flood warnings for Lifford

Where to see the warnings in force, and what this page can’t count.

Met Éireann issues yellow, orange and red warnings for rain, wind and coastal flooding county by county; Lifford is covered by County Donegal’s.

WarningWhat Met Éireann means by it
YellowWeather that isn’t unusual but can be dangerous in places: be aware.
OrangeInfrequent, dangerous weather that can put people and property at risk: be prepared.
RedRare, extremely dangerous weather: take action to protect yourself and your property.

Met Éireann doesn’t publish an open archive of past warnings, so how often warnings have covered Lifford can’t be counted here.

Met Éireann warnings · OPW river levels (waterlevel.ie)

Flood scheme

No OPW flood relief scheme protects Lifford

The Office of Public Works’ completed flood relief schemes and the areas each one benefits (OPW open data, CC BY 4.0).

Schemes
0
protect homes in Lifford
Protected places in the county
0
none in the county
Nearest protected place
146 km
Mullingar, as the crow flies
Low-lying homes
8%
the share a scheme would be built for

None of the OPW’s completed flood relief schemes has a benefiting area that takes in Lifford’s homes. The OPW builds schemes where the risk to homes is greatest, so most towns have none.

No other place across County Donegal has an OPW flood relief scheme either.

The protected places nearest here
TownSchemeDesigned forHomes behind itAway
Mullingar WestmeathMullingar Flood Relief Scheme1 in 1000.2%146 km
Duleek MeathDuleek Flood Relief Scheme1 in 10012%148 km
Laytown-Bettystown-Mornington-Donacarney MeathMornington Flood Relief Scheme1 in 1009.1%149 km
Dunboyne MeathRiver Tolka (Clonee and Dunboyne) Scheme1 in 10014%171 km
Clonee MeathRiver Tolka (Clonee and Dunboyne) Scheme1 in 10057%173 km
Tullamore OffalyTullamore Flood Relief Scheme1 in 1002.4%173 km

Official flood maps and past floods: floodinfo.ie

Landslides

0.2% of Lifford’s homes stand on landslide-prone ground

Geological Survey Ireland’s landslide susceptibility map (1:50,000), read at every home.

Homes on ground rated high or moderately high

LiffordCounty Donegal’s medianmedian of Irish towns
High or moderately high0.2%
0%5%

That is a higher share than in 77% of Irish towns; the median is 0.5% for County Donegal’s towns and 0% for Irish towns.

GSI rates ground from low to high by its slope, soil and rock. Most Irish landslides are on steep upland slopes and peat after heavy rain; a town on flat ground has almost none.

High means the ground could slide under the right conditions, such as days of heavy rain on a steep, wet slope; it isn’t a forecast that it will.

GSI landslide susceptibility, high and moderately high classes, share of the town’s homes on mapped ground (CC BY 4.0).

Radon

An estimated 9.7% of Lifford’s homes are above the radon reference level

The EPA’s radon map: for each 10 km square, the estimated share of homes above the national reference level of 200 Bq/m³.

9.3% of homes estimated above the reference level · 5–10% of homes7.9% of homes estimated above the reference level · 5–10% of homes7.5% of homes estimated above the reference level · 5–10% of homes15% of homes estimated above the reference level · 10–20% (High Radon Area)4.7% of homes estimated above the reference level · 1–5% of homes14% of homes estimated above the reference level · 10–20% (High Radon Area)9.7% of homes estimated above the reference level · 5–10% of homes0% of homes estimated above the reference level · Under 1% of homes0% of homes estimated above the reference level · Under 1% of homes© OpenStreetMap contributors · EPA
Under 1% of homes1–5% of homes5–10% of homes10–20% (High Radon Area)
Share of Irish towns in each band
Under 1% of homes17%
1–5% of homes38%
5–10% of homes · Lifford26%
10–20% (High Radon Area)11%
Over 20% (High Radon Area)9%

A square where 10% or more of homes are estimated above the reference level is a High Radon Area; 0% of Lifford’s homes are in one. The map is an estimate by area: two neighbouring houses can differ a lot.

0%
of homes in a High Radon Area
under 0.1%
County Donegal’s median
4%
median of Irish towns

A test is the only way to know a home’s level: two detectors, left for three months in a living room and a bedroom.

EPA radon map of Ireland (10 km grid), averaged over the town’s homes (CC BY 4.0).

Industrial sites

2 EPA-licensed sites within 5 km of Lifford’s centre, none inside it

Factories, farms, power plants and waste sites that hold an EPA licence for their emissions, in Lifford and around its centre.

0
licensed sites inside Lifford
2
licensed sites within 5 km of the centre
2.8 km
to the nearest: Smyths Daleside Limited
The 3 nearest licensed sites
SiteLicence and activityAway
Smyths Daleside LimitedIndustrial Emissions licence · food and drink2.8 km
Churchtown LandfillWaste licence3.3 km
MS Patterson LtdIndustrial Emissions licence · intensive farming5.7 km
What the 3 licensed sites within 10 km do
ActivitySites
Food and drink1
Waste1
Intensive farming1

Within 5 km: one under an Industrial Emissions licence and one waste facility.

An EPA licence sets what a site may release to air, water and land; it doesn’t mark the site as an accident hazard.

Sites holding dangerous substances in bulk come under the COMAH (Seveso) rules, but the HSA’s list of them has no open licence, so upper- and lower-tier sites aren’t counted here.

Source: EPA registers of Industrial Emissions, IPC and waste licences, sites licensed on 31 October 2026; distances in a straight line from the town’s centre.

Neighbours

Hazards in the places around Lifford

Low-lying homes, radon and landslide ground, town by town.

RaphoeConvoyNewtowncunninghamBallybofey-StranorlarRaphoeConvoyNewtowncunninghamBallybofey-StranorlarLifford
TownLow-lyingRadonLandslides
Lifford8%9.7%0.2%
Raphoe
1,161 · 8.3 km
–4.7%1.2%
Convoy
1,702 · 12 km
0%4.7%0%
Newtowncunningham
1,192 · 18 km
2.2%0.1%0%
Ballybofey-Stranorlar
5,406 · 19 km
–9.4%0.2%

Lifford has more of its homes standing low by big water than any measured place around it; the next is Newtowncunningham (2.2%).

A dash under Low-lying: not measured there (too few homes with detailed ground heights), not none.

Be ready

Get ready for what Lifford faces

What to do, and what to ask before you move.

When the river rises
  • Never walk or drive through floodwater: 30 cm of moving water can float a car.
  • Move valuables, papers and medicines upstairs.
  • Turn off gas, electricity and water if you’re told to.
Met Éireann warnings · floodinfo.ie
Radon
  • Test over three months, in a living room and a bedroom.
  • Above 200 Bq/m³, a small sump and fan usually fixes it.
  • The EPA sells radon test kits at radon.ie and lists registered contractors who fix high readings.
radon.ie
When a storm is forecast
  • Bring in or tie down bins, trampolines and anything the wind can lift.
  • Keep away from coastal paths and piers while an orange or red warning is in force.
  • Charge phones and keep a torch: fallen lines are the commonest storm damage.
  • After the storm, report a fallen line to ESB Networks and keep well clear of it.
ESB Networks PowerCheck
Before you buy or rent in Lifford
  • Ask whether the home has ever flooded, and get a buildings insurance quote before you commit: flood cover isn’t always offered.
  • Ask the seller or landlord for a radon test result, or test in your first months there.
  • Check the address on floodinfo.ie: the OPW’s flood maps and its record of past floods.
How to read these numbers

What this data can and can’t tell you

  • An estimate, not a flood map. Low-lying homes is a TownRatings modelling step: each home’s ground height from LiDAR, against the level of the nearest big river (Strahler order 5 or more), lake or estuary within 1 km, or the sea within 2 km. A home within 5 m of the water’s level, or below 4 m near the sea, counts.
  • Flood counts only one way. A high share of low-lying homes lowers the Hazard risk Grade; a low share never raises it, because defences, small streams, culverts, groundwater and flash floods don’t show in ground heights. Below the national median a town scores as the median.
  • Defences aren’t counted. Flood defences aren’t taken off: the OPW scheme that protects the most homes is shown instead, with its design standard.
  • Measured where the heights are detailed. A town is measured, and counted, only where 80% of its homes stand on LiDAR heights. Elsewhere the page says flooding isn’t measured, never that the town is dry.
  • Radon is an estimate by area. The EPA’s radon map gives the estimated share of homes above 200 Bq/m³ for each 10 km square, averaged here over the town’s homes. It says where to test, not what one house holds.
  • The sea is measured by height. Homes count as low by the sea when their ground is under 4 m and within 2 km of coastal or estuary water; waves, surges and erosion aren’t modelled.
  • Landslide ground is a map of where slides could start. GSI’s susceptibility map rates the ground itself; it doesn’t record past slides or say when one will happen.
  • Bathing water is rated season by season. The EPA classes each identified bathing water from four seasons of samples; a rating says how clean the water has been, not how safe it is to swim.
  • One town, many streets. Risk is street by street. Check a specific address on floodinfo.ie before you buy or rent.

Check any address against the OPW’s official flood maps on floodinfo.ie

Questions about flooding and hazards in Lifford

Does Lifford flood?

About 8% of Lifford’s homes stand low beside an estuary: a higher share than in 72% of Irish towns. That is our estimate from ground heights, not an official flood map. For a single address, the OPW’s official flood maps and past floods are on floodinfo.ie.

Is radon a problem in Lifford?

The EPA’s map estimates that about 9.7% of homes around Lifford are above the radon reference level of 200 Bq/m³: a higher share than in 79% of Irish towns. 0% of its homes are in a High Radon Area. The only way to know a house is a three-month test.

Is Lifford at risk of landslides?

0.2% of Lifford’s homes stand on ground rated high or moderately high for landslides. Most slides happen on steep slopes and peat after heavy rain.

Is Lifford at risk from the sea?

None of Lifford’s homes stands below 4 m within 2 km of the sea, so the sea plays no part in its share of low-lying homes; 8% stand low by rivers, lakes and estuaries.

How does Lifford compare with the places around it?

Radon estimates around Lifford run from 0.1% in Newtowncunningham to 9.4% in Ballybofey-Stranorlar; Lifford’s own is 9.7%. Among the places measured in detail, Newtowncunningham has the largest share of homes standing low (2.2%).

How is Lifford’s Hazard risk Grade worked out?

Lifford grades C: radon, landslide ground and low-lying homes are each placed among Irish towns, and the grade averages them.

Flood: TownRatings’ estimate from ground heights, not an official flood map. Contains Irish Public Sector Data (Geological Survey Ireland, the Office of Public Works and the EPA) licensed under CC BY 4.0; Copernicus DEM © DLR e.V. and © Airbus, provided under COPERNICUS by the EU and ESA; © OpenStreetMap contributors. Radon and bathing water: EPA (CC BY 4.0). Landslide susceptibility: Geological Survey Ireland (CC BY 4.0).

Sources: low-lying homes: TownRatings’ estimate from GSI and OPW LiDAR, Copernicus GLO-30 and the EPA river network · radon: EPA radon map · landslides: GSI landslide susceptibility · industrial sites: EPA licence registers · the grade: TownRatings, from these figures. Under Creative Commons Attribution 4.0 (CC BY 4.0).

Contains Central Statistics Office (CSO) data, Census 2022, and Tailte Éireann boundaries (CSO Urban Areas, Small Areas, local electoral areas, constituencies), under Creative Commons Attribution 4.0 (CC BY 4.0).