About this map
This interactive map presents tree canopy across Ireland. Each circle signifies the crown of one of Ireland's 100+ million trees growing either in forests (green) or outside forests (pink). We have calculated overall canopy cover (crown area, as a % of land area) nationally, by county, municipal district, local authority – and settlement.
Data sources & methodology
Data is derived from the first National Tree Map (NTMTM) a commercial database, produced in 2020 by Bluesky International, now part of the Woolpert company (see www.bluesky-world.ie).
We cross-referenced the NTMTM with:
- Forest parcel boundary data (produced by DAFM (Department of Agriculture, Food and Marine), and Coillte, published under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence, via https://data.gov.ie/) which allowed us to classify trees as Forest Trees (FT) or Trees Outside Forests (TOF) depending on whether they grew on land catalogued as forest, or on land outside forest
- Administrative boundaries concerning counties, built-up areas, municipal districts and local authorities (provided by the Central Statistics Office (CSO) and Tailte Éireann, available from Tailte Éireann Surveying Open Data Portal) which allowed us to compute canopy cover at a national, county and local scale, including settlement by settlement.
- Data available from gov.ie on the NSNW (National Survey of Native Woodlands, see https://www.npws.ie/research-projects/woodlands) and ALEW (Ancient and Long-Established Woodlands, available from https://www.ancientwoodlandsireland.com/). We await the update of these surveys, they’re the best we have so far.
TreeMAP Ireland, based on data gathered between 2018 and 2020, is overlain on current Esri basemaps within the Esri online environment, this allows us to visualise changes that have taken place on the ground. The basemaps differ from the high-resolution aerial imagery flown by Bluesky/Woolpert, and used to produce the NTM. The 5-year timelag evidences change, revealing trees have been planted or felled as part of development, for example.
How to use the map
- Map controls – search, zoom, basemap switcher, and the Home button – are in the top left corner of the screen.
- The map starts with a national overview as an aerial basemap image. Toggle between basemaps to change the underlying map.
- On the right-hand side of the screen, the county list sorts canopy by total area, by total % cover, and by forest/non-forest distribution. Select a county from the list, or type an address into the search bar, to zoom in for detail. Note the Country pop-up that appears on the left of the screen.
- Switch between Built-up Areas / Municipal District / Local Authority tabs to explore canopy at various administrative levels. Use the toggles to show/hide layers, including Canopy. Toggle the Woodland Inventories on, all other layers off, to view these tiny patches. Toggle Canopy on / off to visualise overlaps with the woodlands.
- Zoom in to a neighbourhood. Click any tree crown on the map for details of that individual crown.
- Click the Home button or Reset to return to the overview, or zoom in directly to explore across the entire country, across county boundaries, without selecting a county first.
- Press Esc to close open panels, pop-ups, and this information window.
Disclaimers
This map was produced using commercial data provided by Bluesky International, as well as government-owned data that is freely available under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. The Bluesky/Woolpert NTMTM is the most detailed database of trees that exists at the national scale; this and all other datasets used to compile this map are the most up-to-date available. However, all such datasets contain anomalies which we explain in more detail elsewhere. Anomalies concern (some of) the administrative boundary areas provided by the government, including forest parcel boundaries, as well as (some) tree heights, crown areas and numbers, and the occasional misidentification of non-tree objects. For further information, see www.treelab.ie.
Contact & attribution
For questions and/or feedback, contact Sophia Meeres at sophia.meeres@ucd.ie.
Reference this website
Authors: Sophia Meeres and Gabriel Oduori, Publication date: 15 October 2026, Page title: TreeMAP Ireland, URL: treemap.ie.
Please cite this map as:
Meeres, S. and Oduori, G. (2026) TreeMAP Ireland. Available at: https://treemap.ie (Accessed: day month year).
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