Data Sources · Methodology · Geography
About the data — sources and methodology
IrelandInsights.ie is built entirely on official Irish government and public data sources. No data is invented, interpolated, or inferred. Every number on the map links directly to a primary source.
Primary data sources
- Census 2022 — CSO Ireland — Electoral division and small area statistics for population, housing tenure, education, employment, commuting, age, and household composition. 3,420 EDs and 19,000+ small areas. Published by the Central Statistics Office under the Creative Commons Attribution 4.0 licence.
- Property Price Register — PSRA — Residential property transactions since 2010. Used for price trend analysis. Published by the Property Services Regulatory Authority.
- Rent data — RTB — Rental market data by area. Published by the Residential Tenancies Board.
- Election results — Electoral Commission Ireland — 2020 and 2024 general election results by constituency. First-preference votes and seat allocations.
- Deprivation Index — Pobal — HP Deprivation Index 2022, derived from Census 2022 indicators of disadvantage at small area level.
- Transport — Transport for Ireland / NTA — GTFS bus and rail data for route mapping and stop locations.
- Weather — Met Éireann / Open-Meteo — Current conditions and rainfall data by location.
- Boundaries — OSi / CSO / Electoral Commission — Electoral division, county, constituency, and small area boundary geometries.
Geography definitions
- Electoral Division (ED) — The primary unit of analysis. Ireland has 3,420 EDs, each covering 60–2,000 households. This is the finest geographic level at which Census 2022 data is published for most topics.
- Small Area (SA) — Sub-ED units, approximately 60–120 households. Used for deprivation scoring and selected census topics.
- County — Aggregated from ED-level data. County figures on this site are computed from the underlying ED data, not from CSO county summaries, to ensure consistency.
- Constituency — Dáil constituencies as defined by the Electoral Commission for the 2024 general election. 43 constituencies returning 174 TDs.
Update frequency
- Census data — Updated when a new census is published. Current data is Census 2022 (published 2023–2024). Next Irish census is due 2027.
- Property prices — Updated regularly from the Property Price Register and RTB datasets.
- Election results — Updated after each general election. Current data covers November 2024 and February 2020 elections.
- Weather and transport — Live data with caching. Weather refreshes every few minutes; transport data follows GTFS schedule publications.
What this site is not
- This is not a CSO product. IrelandInsights.ie is an independent map built on CSO open data.
- Data is not provided for individual people — only aggregate statistics at geographic level.
- Electoral division boundaries and populations change between censuses. Comparisons between 2016 and 2022 may reflect boundary changes, not just population change.
Explore the data
All data visible in IrelandInsights.ie is sourced from the official organisations listed above and is free to use under their respective open data licences.