Practical guide · Ireland
JSON data in Ireland: sources and checks
By datafromgov.com · Published 2026-10-28
Source export: 2026-08-30
The counts describe a saved catalogue. Check the source for current files and terms.
The saved catalogue lists 1,867 resource records with a JSON label across 11 publishers.
This guide identifies sources in Ireland and gives a procedure for the format.
The measurements describe the export dated 2026-08-30. They do not establish current download availability.
- Matching format declarations
- 1,867
- Publishers in this sample
- 11
- Share of listed declarations
- 2.2%
What the source records show
The selected country export contains 83,366 listed format declarations across 59 publishers.
JSON accounts for 2.2% of that declaration total.
A resource record describes a file or a service. Several records can belong to one dataset.
The export retains up to 20 format labels per publisher. It excludes some small publishers and empty format labels.
Choose a source
The largest matching entry is Tusla.
It contributes 1,491 matching resource records, or 79.9% of this format sample.
The next entry contributes 109 matching records.
A large count indicates more catalogue records. It does not establish accuracy, completeness, or public access.
- Open a source record from the examples below.
- Confirm the geographic area and observation period on the source page.
- Read the licence for the selected dataset.
- Select the required file or service from the source page.
Inspect the format
JSON stores objects, arrays, and values. A JSON file can contain nested records.
- Inspect the top-level object or array.
- Identify the array that contains the data records.
- Keep absent fields separate from explicit null values.
- Check whether the source supplies pagination links.
- Preserve identifier strings when you flatten nested objects.
Check the result
A format label does not verify the file contents. A source can change its files after the catalogue export.
A metadata modification date can describe a catalogue edit. It does not necessarily describe the latest observation.
- Record the source URL, access date, and dataset title.
- Check the units and the definitions of the fields.
- Compare a small sample with the source documentation.
- Retain an original copy before any conversion.
- State any missing periods, regions, or values in the result.
How this comparison works
The calculation sums listed format declarations from the publisher export.
It groups equivalent format labels and retains separate counts for XLS, XLSX, TIFF, and GeoTIFF.
Compound labels can remain outside the selected format group. The source files retain the original labels.
The source records can include several versions of the same data. The totals do not count unique observations.
The examples are selections from stored catalogue samples. They do not list every matching dataset.
Publishers with this format
| Publisher | Matching resource records | Share of format sample |
|---|---|---|
| Tusla | 1,491 | 79.9% |
| Environmental Protection Agency | 109 | 5.8% |
| Met Éireann | 86 | 4.6% |
| Department of Housing, Local Government and Heritage | 67 | 3.6% |
| Marine Institute | 67 | 3.6% |
| Geological Survey Ireland | 16 | 0.9% |
| Department of Agriculture, Food and the Marine | 13 | 0.7% |
| Department of Justice, Home Affairs and Migration | 8 | 0.4% |
| Wexford County Council | 5 | 0.3% |
| Cork City Council | 4 | 0.2% |
Dataset examples from the source catalogue
These titles come from stored source records. Some records lack a direct dataset URL.
No. of Adults 18-20 Years in Receipt of an Aftercare Service in Third Level College/University 2025
Formats: json, csv · Metadata date: 2026-03-11
Find this exact title on the source portal.
No. of Children in Care (All Placement Types) in an Out of State Placement with a Written Care Plan 2025
Formats: json, csv · Metadata date: 2026-03-11
Find this exact title on the source portal.
Urban Waste Water Treatment Plant Locations
Environmental Protection Agency
Formats: html, wms, json · Metadata date: 2026-08-19
Find this exact title on the source portal.
MINES - Linear Waste Features
Environmental Protection Agency
Formats: json, html, wms · Metadata date: 2026-08-19
Find this exact title on the source portal.
Met Éireann Live Text Forecast Data
Formats: xml, odt, json · Metadata date: 2026-03-26
Find this exact title on the source portal.
Formats: xml, html, json, pdf · Metadata date: 2026-03-19
Find this exact title on the source portal.
Sources and method
This article combines catalogue measurements with a reusable technical procedure. The calculations use the dated export above.
- JSON specification
- Country catalogue and source details
- Format measurement method
- Export and reuse terms
Contains Irish Public Sector Data licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence
Dataset titles remain subject to the source terms. Read the portal source details.