Ogham stones, every one on the record

Ogham is an early medieval alphabet of strokes and notches cut along an edge, used mainly to write the early Irish language. The earliest inscriptions on stone date to about the 4th century AD, and the "orthodox" inscriptions to the 4th to 6th centuries. They usually consist of personal names in a set formula. Wikipedia counts roughly 400 surviving orthodox inscriptions in Ireland and western Britain, most of them in Munster, with Cork and Kerry holding 60% of the Irish stones. (Wikipedia, "Ogham" ↗)

The record agrees on the pattern: Cork and Kerry have 261 of the Republic's 402 ogham stone records (65%). The record counts stones, fragments and lost stones known from older accounts, so it is not a count of readable inscriptions. Readings quoted below are the record's, usually citing Macalister's 1945 corpus or later work; scholars have revised many of them.

Ogham stone records in the Republic, by county (not counting the 169 present-location records).

Open a county for every record: townland, a line quoted from the survey's own description where it has one, the SMR number (linked to the Historic Environment Viewer) and a map link where the record has a position.

• A record is a survey entry, not a promise that something is there. The Sites and Monuments Record lists sites that are known, reported or marked on old maps, including some that have been destroyed, moved, or were never found when inspected. Each record's own description says what the surveyors saw; read it before you set out.
• A present location record is where a moved object (in a church, a museum, a school, a garden) is now. The place it was found or first stood usually has a record of its own, so one object can appear twice.
• Some records have no description uploaded yet, and a few have no usable position; they are marked as such.
• Most sites are on private land. Ask before you cross a field, and leave things as you find them: monuments in the Record of Monuments and Places are protected under section 12 of the National Monuments (Amendment) Act 1994 ↗.
• The Sites and Monuments Record covers the Republic only. Northern Ireland's record (the NISMR) is counted here by county from its open data, by matching the record descriptions; it is not listed site by site and its counts are not directly comparable.
• Ogham stones were often moved: to churches, to estates, to museums (the National Museum and University College Cork among them) and, in some cases, built into walls or souterrains long ago. Of the records here, 169 are present-location records. A stone found in one county can now be in another, and is listed under the county of its present location.

Source: National Monuments Service, Archaeological Survey of Ireland, Sites and Monuments Record, open data via data.gov.ie ↗ (CC BY 4.0); every record links to the Historic Environment Viewer ↗. Northern Ireland: Northern Ireland Sites and Monuments Record (Department for Communities, Historic Environment Division), OpenDataNI ↗.