The names shown on the map are those of the ancient parishes of Cornwall. The table lists the Ancient Cornish Parishes in alphabetical order with the relevant map grid reference.
| Grid Ref | Parish | Grid Ref | Parish | Grid Ref | Parish |
|---|---|---|---|---|---|
| K5 | Advent | L8 | Herodsfoot | L4 | Otterham |
| F8 | St. Agnes | M8 | Hessenford | H5 | Padstow |
| A13 | St. Agnes (Scilly) | C10 | St. Hilary | J8 | Par |
| G8 | St. Allen | E9 | Illogan | B11 | Paul |
| L5 | Altarnun | I6 | St. Issey | L8 | Pelynt |
| F11 | St. Anthony in M. | N7 | St. Ive | E10 | Pencoys |
| G11 | St. Anthony in R. | C9 | St. Ives | A10 | Pendeen |
| O8 | Antony | M3 | Jacobstow | D9 | Penponds |
| J8 | St. Austell | O9 | St. John | G11 | Penwerris |
| F9 | Baldhu | L3 | St. Juliot | B10 | Penzance (St. Mary) |
| J8 | St. Blazey | A10 | St. Just in Penwith | B10 | Penzance St. John |
| K6 | Blisland | G10 | St. Just in Roseland | B10 | Penzance St. Paul |
| K7 | Boconnoc | G9 | Kea | F10 | Perranarworthal |
| J7 | Bodmin | G9 | Kenwyn | C11 | Perranuthnoe |
| L5 | Bolventor | F12 | St. Keverne | F8 | Perranzabuloe |
| O8 | Botus Fleming | J5 | St. Kew | I6 | Little Petherick |
| N4 | Boyton | M8 | St. Keyne | D9 | Phillack |
| K7 | Bradoc | M1 | Kilkhampton | H10 | Philleigh |
| D11 | Breage | H8 | Ladock | N7 | Pillaton |
| I6 | St. Breock | H9 | Lamorran | L7 | St. Pinnock |
| K5 | St. Breward | E13 | Landewednack | J5 | Port Isaac |
| M2 | Bude Haven | N8 | Landrake | D11 | Porthleven |
| F11 | Budock | O8 | Landulph | M2 | Poughill |
| B11 | St. Buryan | M4 | Laneast | M3 | Poundstock |
| I10 | St. Michael Caerhays | K7 | Lanhydrock | N9 | Probus |
| N7 | Callington | J7 | Lanivet | N7 | Quethiock |
| O7 | Calstock | J8 | Lanlivery | O9 | Rame |
| E9 | Camborne | E9 | Lannarth | E9 | Redruth (St. Uny) |
| C9 | Carbis Bay | L8 | Lanreath | E9 | Redruth St. Andrew |
| K6 | Cardinham | L9 | Lansallos | I7 | Roche |
| E10 | Carnmenellis | K5 | Lanteglos by Camelford | H10 | Ruan Lanihorne |
| F9 | Chacewater | K8 | Lanteglos by Fowey | E12 | Ruan Major |
| J8 | Charlestown | M2 | Launcells | E13 | Ruan Minor |
| M6 | St. Cleer | N5 | Launceston | O8 | Saltash |
| G9 | St. Clement | N5 | Lawhitton | K8 | St. Sampson |
| L5 | St. Clether | C10 | Lelant | B10 | Sancreed |
| H7 | Colan | L4 | Lesnewth | A12 | Scilly Isles |
| H7 | St. Columb Major | A11 | St. Levan | A11 | Sennen |
| G7 | St. Columb Minor | M5 | Lewannick | N8 | Sheviock |
| H9 | Cornelly | N5 | Lezant | E11 | Sithney |
| F11 | Constantine | M6 | Linkinhorne | N6 | South Hill |
| G7 | Crantock | L7 | Liskeard | N5 | South Petherwin |
| I9 | Creed | M8 | Looe | I8 | St. Stephen in Brannel |
| E10 | Crowan | K7 | Lostwithiel | N4 | St. Stephen by Launceston |
| G7 | Cubert | C10 | Ludgvan | O8 | St. Stephen by Saltash |
| I9 | Cuby | J7 | Luxulyan | N6 | Stoke Climsland |
| E12 | Cury | F10 | Mabe | M2 | Stratton |
| L4 | Davidstow | J6 | St. Mabyn | F10 | Stithians |
| F9 | St. Day | B10 | Madron | L9 | Talland |
| I7 | St. Dennis | O9 | Maker | J5 | St. Teath |
| G10 | Devoran | F11 | Manaccan | L6 | Temple |
| O7 | St. Dominic | C10 | Marazion | N5 | St. Thomas by Launceston |
| L8 | Duloe | M2 | Marhamchurch | N8 | Tideford |
| J6 | Egloshayle | M8 | St. Martin by Looe | K4 | Tintagel |
| M4 | Egloskerry | F11 | St. Martin in Meneage | O8 | Torpoint |
| J5 | Endellion | A12 | St. Martin (Scilly) | G9 | Towednack |
| H8 | St. Enoder | A13 | St. Mary (Scilly) | H9 | Tregony |
| G8 | St. Erme | E11 | Mawgan in Meneage | E9 | Treleigh |
| N8 | St. Erney | H6 | Mawgan in Pydar | M4 | Tremaine |
| D10 | St. Erth | F11 | Mawnan | L4 | Treneglos |
| H6 | St. Ervan | N7 | St. Mellion | A12 | Tresco (Scilly) |
| H6 | St. Eval | M7 | Menheniot | E10 | Treslothan |
| I9 | St. Ewe | H5 | St. Merryn | M4 | Tresmere |
| G11 | Falmouth (King Charles) | H9 | Merther | K4 | Trevalga |
| G11 | Falmouth (All Saints) | I9 | Mevagissey | J8 | Treverbyn |
| G10 | Feock | I8 | St. Mewan | M5 | Trewen |
| G10 | Flushing | C11 | St. Michael's Mount | G9 | Truro (St. Mary) |
| K4 | Forrabury | H9 | St. Michael Penkivel | G9 | Truro St. George |
| K8 | Fowey | K5 | Michaelstow | G9 | Truro St. John |
| L3 | St. Gennys | O9 | Millbrook | G9 | Truro St. Paul |
| N8 | St. Germans | K4 | Minster | E9 | Tuckingmill |
| D11 | Germoe | I5 | St. Minver | K5 | St. Tudy |
| H10 | Gerrans | F8 | Mithian | K8 | Tywardreath |
| N4 | St. Giles in the Heath | B10 | Morvah | K8 | St. Veep |
| F10 | St. Gluvias | M8 | Morval | H10 | Veryan |
| D10 | Godolphin | M1 | Morwenstow | O4 | Virginstow |
| I10 | Gorran | F9 | Mount Hawke | L4 | Warbstow |
| E13 | Grade | E12 | Mullion | L6 | Warleggan |
| B10 | Gulval | G10 | Mylor | M3 | Week St. Mary |
| E12 | Gunwalloe | L6 | St. Neot | E11 | Wendron |
| F9 | Gwennap | G8 | Newlyn East | I7 | St. Wenn |
| D10 | Gwinear | B11 | Newlyn St. Peter | N4 | Werrington |
| D9 | Gwithian | G7 | Newquay | M3 | Whitstone |
| C9 | Halsetown | M6 | North Hill | K7 | St.Winnow |
| K6 | Helland | M4 | North Petherwin | J7 | Withiel |
| E11 | Helston | N3 | North Tamerton | B8 | Zennor |