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.