The State's National Inventory of Architectural Heritage records 48,327 buildings and structures built since 1700 — farmhouses and cathedrals, shopfronts and bridges. Here is how they fall across the 26 counties.
| County | All | National rating | Houses & terraces | Churches & chapels | Bridges, railways & waterways | Country houses & estates | Farm buildings | Monuments, memorials & street furniture | Shops, pubs, banks & hotels | Public & civic buildings | Mills & industrial | Other | Schools & colleges | Gates, walls & railings |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cork | 8,467 | 102 | 4,730 | 619 | 564 | 557 | 199 | 359 | 337 | 335 | 295 | 134 | 154 | 184 |
| Dublin | 7,535 | 239 | 4,143 | 486 | 302 | 420 | 151 | 354 | 698 | 274 | 218 | 197 | 157 | 135 |
| Wexford | 2,842 | 41 | 919 | 342 | 179 | 202 | 463 | 164 | 41 | 54 | 95 | 177 | 38 | 168 |
| Waterford | 2,698 | 74 | 1,737 | 139 | 75 | 96 | 121 | 56 | 50 | 65 | 52 | 189 | 43 | 75 |
| Donegal | 2,289 | 15 | 864 | 340 | 365 | 170 | 154 | 98 | 46 | 79 | 67 | 22 | 56 | 28 |
| Limerick | 2,192 | 43 | 1,088 | 242 | 176 | 207 | 38 | 111 | 96 | 86 | 62 | 24 | 52 | 10 |
| Tipperary | 2,031 | 27 | 899 | 276 | 153 | 246 | 35 | 48 | 61 | 92 | 92 | 26 | 75 | 28 |
| Galway | 1,963 | 30 | 661 | 249 | 305 | 219 | 81 | 125 | 51 | 59 | 64 | 43 | 70 | 36 |
| Kilkenny | 1,917 | 58 | 845 | 217 | 148 | 118 | 153 | 62 | 35 | 51 | 72 | 38 | 40 | 138 |
| Westmeath | 1,617 | 44 | 533 | 180 | 163 | 229 | 87 | 117 | 57 | 66 | 40 | 44 | 33 | 68 |
| Kildare | 1,581 | 29 | 712 | 159 | 143 | 81 | 96 | 96 | 38 | 45 | 60 | 45 | 59 | 47 |
| Mayo | 1,470 | 10 | 342 | 215 | 235 | 145 | 143 | 96 | 34 | 61 | 43 | 36 | 53 | 67 |
| Louth | 1,347 | 18 | 762 | 139 | 58 | 99 | 43 | 19 | 41 | 37 | 53 | 28 | 42 | 26 |
| Wicklow | 1,293 | 12 | 828 | 109 | 56 | 103 | 20 | 34 | 44 | 27 | 12 | 11 | 37 | 12 |
| Monaghan | 1,257 | 14 | 358 | 176 | 184 | 109 | 53 | 71 | 70 | 69 | 58 | 23 | 58 | 28 |
| Offaly | 1,196 | 22 | 489 | 127 | 112 | 120 | 101 | 62 | 33 | 36 | 62 | 19 | 28 | 7 |
| Meath | 1,132 | 8 | 352 | 154 | 102 | 118 | 92 | 90 | 28 | 40 | 54 | 24 | 45 | 33 |
| Kerry | 859 | 26 | 484 | 114 | 60 | 57 | 8 | 10 | 33 | 28 | 29 | 6 | 21 | 9 |
| Longford | 842 | 14 | 252 | 100 | 127 | 75 | 53 | 68 | 18 | 26 | 28 | 9 | 16 | 70 |
| Sligo | 803 | 24 | 372 | 106 | 64 | 71 | 18 | 21 | 41 | 24 | 25 | 26 | 28 | 7 |
| Cavan | 770 | 14 | 195 | 183 | 103 | 82 | 40 | 40 | 32 | 28 | 21 | 12 | 30 | 4 |
| Laois | 692 | 26 | 218 | 110 | 46 | 50 | 18 | 17 | 26 | 29 | 14 | 139 | 23 | 2 |
| Clare | 450 | 33 | 145 | 115 | 62 | 36 | 9 | 11 | 19 | 21 | 10 | 4 | 9 | 9 |
| Roscommon | 402 | 6 | 104 | 76 | 35 | 53 | 4 | 19 | 23 | 14 | 17 | 42 | 12 | 3 |
| Leitrim | 391 | 0 | 119 | 80 | 52 | 29 | 14 | 25 | 17 | 18 | 14 | 5 | 13 | 5 |
| Carlow | 291 | 8 | 58 | 56 | 49 | 61 | 20 | 7 | 2 | 6 | 14 | 6 | 12 | 0 |
Grouped from the Inventory's "original type" field (505 types into 12 groups; a building with two types counts in the first that matches, and "other" includes records with no type).
A survey by the Department of Housing, Local Government and Heritage of buildings and structures of architectural interest in the Republic built after 1700. It lists 48,327 records; 937 are rated of national importance and 13 of international importance.
Cork, with 8,467 records. Each county was surveyed separately and in different depth, so the counts partly reflect how thorough each survey was.
National Inventory of Architectural Heritage (NIAH) — national dataset ↗, Department of Housing, Local Government and Heritage, open data. Every building has its own record, with photographs and a description, on buildingsofireland.ie ↗. The Inventory covers the Republic only.