The Millstreet Poor Law Union had a wide catchment area, and included Millstreet, Ballydaly, Knocknagree, Cullen, Derinagree, Kilcorney, and back into Millstreet again. Wikipedia has a list of all the Townlands in Cork, and within that the Millstreet Townlands are listed. From the smallest townland of Glebe (in Kilcorney) (13 acres) to the largest townland of Caherbarnagh (3,626 acres) there are a total of 182 townlands covering an area of over 74,441 acres or nearly 117 square miles (10.8miles x 10.8 Miles).
Drishane Civil Parish (33,061 acres, 58 townlands, 1 town)
Cullen Civil Parish (13,619 acres, 55 townlands)
The full list of townlands covered by the Millstreet Poor Law Union is below:
| Townland | Acres | Barony | Civil Parish |
| Adrivale | 460 | West Muskerry | Drishane |
| Ahane Beg | 158 | Duhallow | Cullen |
| Ahane Lower | 188 | Duhallow | Cullen |
| Ahane Upper | 303 | Duhallow | Cullen |
| Anagloor | 417 | Duhallow | Drishane |
| Ardnageeha | 311 | Duhallow | Cullen |
| Ballinkeen | 242 | West Muskerry | Drishane |
| Ballydaly | 1,089 | West Muskerry | Drishane |
| Ballynatona | 278 | West Muskerry | Drishane |
| Ballyvouskill | 495 | West Muskerry | Drishane |
| Baunreagh | 76 | West Muskerry | Kilcorney |
| Beenreagh | 255 | West Muskerry | Kilcorney |
| Boolymore | 1,031 | Duhallow | Dromtarriff |
| Brookpark | 750 | West Muskerry | Kilcorney |
| Caherbarnagh | 3,626 | West Muskerry | Drishane |
| Caherdowney | 1,173 | West Muskerry | Drishane |
| Carragraigue | 1,552 | Duhallow | Dromtarriff |
| Carrigacooleen | 599 | West Muskerry | Drishane |
| Carrigaline | 380 | Duhallow | Nohavaldaly |
| Carrigduff | 1,305 | West Muskerry | Kilcorney |
| Carrigleigh | 97 | West Muskerry | Drishane |
| Church Hill | 99 | Duhallow | Cullen |
| Claragh Beg | 328 | West Muskerry | Drishane |
| Claragh More | 462 | Duhallow | Drishane |
| Claraghatlea North | 397 | Duhallow | Drishane |
| Claraghatlea South | 185 | Duhallow | Drishane |
| Cleanrath | 353 | Duhallow | Cullen |
| Cloghboola Beg | 1,213 | West Muskerry | Drishane |
| Cloghboola More | 524 | West Muskerry | Drishane |
| Cloonbannin East | 476 | Duhallow | Cullen |
| Cloonbannin West | 258 | Duhallow | Cullen |
| Coalpits | 132 | Duhallow | Cullen |
| Coolanarney | 398 | West Muskerry | Drishane |
| Coolcloher East | 215 | Duhallow | Cullen |
| Coolcloher South | 239 | Duhallow | Cullen |
| Coolcloher West | 214 | Duhallow | Cullen |
| Coole | 277 | West Muskerry | Drishane |
| Cooleenaree | 183 | West Muskerry | Drishane |
| Coolnagillagh Lower | 202 | West Muskerry | Drishane |
| Coolnagillagh Upper | 335 | West Muskerry | Drishane |
| Coolykeerane | 623 | Duhallow | Drishane |
| Coomacheo | 2,157 | West Muskerry | Drishane |
| Coomlogane | 615 | West Muskerry | Drishane |
| Crinnaloo North | 535 | West Muskerry | Kilcorney |
| Crinnaloo South | 1,203 | West Muskerry | Kilcorney |
| Curracahill | 691 | West Muskerry | Drishane |
| Curragh | 996 | West Muskerry | Drishane |
| Dernagree | 147 | Duhallow | Dromtarriff |
| Derragh | 317 | Duhallow | Cullen |
| Derreen | 111 | West Muskerry | Drishane |
| Derryleagh | 315 | Duhallow | Kilmeen |
| Derrynatubbrid | 375 | Duhallow | Kilmeen |
| Donoure East | 173 | West Muskerry | Kilcorney |
| Donoure Middle | 111 | West Muskerry | Kilcorney |
| Donoure West | 174 | West Muskerry | Kilcorney |
| Doonasleen East | 196 | Duhallow | Kilmeen |
| Doonasleen North | 526 | Duhallow | Kilmeen |
| Doonasleen South | 600 | Duhallow | Kilmeen |
| Dooneens | 594 | West Muskerry | Drishane |
| Drishane Beg | 383 | West Muskerry | Drishane |
| Drishane More | 278 | West Muskerry | Drishane |
| Drombeg | 58 | West Muskerry | Kilcorney |
| Drominagh North | 575 | Duhallow | Dromtarriff |
| Drominagh South | 463 | Duhallow | Dromtarriff |
| Drominahilla | 139 | West Muskerry | Drishane |
| Dromsicane | 397 | Duhallow | Cullen |
| Duarrigle | 147 | Duhallow | Cullen |
| Euglaune | 137 | Duhallow | Cullen |
| Farrankeal | 408 | Duhallow | Nohavaldaly |
| Ferm | 106 | West Muskerry | Drishane |
| Finnanfield | 361 | West Muskerry | Kilcorney |
| Garrane North | 175 | Duhallow | Dromtarriff |
| Garrane South | 201 | Duhallow | Dromtarriff |
| Garrane West | 194 | Duhallow | Dromtarriff |
| Garraneduff | 335 | West Muskerry | Drishane |
| Geararoe | 76 | West Muskerry | Drishane |
| Glantane Beg | 222 | Duhallow | Cullen |
| Glantane More | 311 | Duhallow | Cullen |
| Glebe | 13 | West Muskerry | Kilcorney |
| Glenleigh | 638 | West Muskerry | Kilcorney |
| Gneeves | 467 | West Muskerry | Drishane |
| Gortageen | 569 | Duhallow | Cullen |
| Gortavehy East | 512 | West Muskerry | Drishane |
| Gortavehy West | 536 | West Muskerry | Drishane |
| Gorteennafinnoge | 446 | Duhallow | Cullen |
| Gortnaclogh | 246 | West Muskerry | Kilcorney |
| Gortnacreha | 225 | Duhallow | Cullen |
| Horsemount North | 495 | West Muskerry | Kilcorney |
| Horsemount South | 315 | West Muskerry | Kilcorney |
| Horsemountmountain | 631 | West Muskerry | Kilcorney |
| Inches | 400 | West Muskerry | Drishane |
| Inchileigh | 262 | West Muskerry | Drishane |
| Islandbrack | 370 | Duhallow | Kilmeen |
| Island-dahill | 439 | Duhallow | Dromtarriff |
| Keale North | 258 | Duhallow | Cullen |
| Keale South | 210 | Duhallow | Cullen |
| Kealmanagh | 265 | Duhallow | Cullen |
| Kilcorney | 101 | West Muskerry | Kilcorney |
| Killeen | 148 | West Muskerry | Kilcorney |
| Killetragh | 468 | Duhallow | Dromtarriff |
| Killowen | 221 | West Muskerry | Drishane |
| Kilmeedy East | 316 | West Muskerry | Drishane |
| Kilmeedy West | 461 | West Muskerry | Drishane |
| Kippagh | 689 | West Muskerry | Drishane |
| Knockacarracoosh | 221 | Duhallow | Cullen |
| Knockagallane | 616 | West Muskerry | Drishane |
| Knockagarrane East | 118 | Duhallow | Cullen |
| Knockagarrane West | 105 | Duhallow | Cullen |
| Knockane | 151 | Duhallow | Cullen |
| Knockanroe | 191 | West Muskerry | Kilcorney |
| Knockastuckane | 315 | Duhallow | Cullen |
| Knockcahill | 291 | Duhallow | Dromtarriff |
| Knockduff Lower | 124 | Duhallow | Cullen |
| Knockduff Upper | 360 | Duhallow | Cullen |
| Knockeenadallane | 275 | Duhallow | Cullen |
| Knockeennagearagh | 256 | Duhallow | Cullen |
| Knockgorm | 94 | West Muskerry | Kilcorney |
| Knocknageeha East | 228 | Duhallow | Cullen |
| Knocknageeha North | 238 | Duhallow | Cullen |
| Knocknageeha South | 174 | Duhallow | Cullen |
| Knocknageeha West | 168 | Duhallow | Cullen |
| Knocknagree | 448 | Duhallow | Nohavaldaly |
| Knocknakilla | 1,140 | West Muskerry | Drishane |
| Knocknaloman | 651 | West Muskerry | Drishane |
| Knocknashannagh | 302 | Duhallow | Cullen |
| Knockyhena | 595 | Duhallow | Nohavaldaly |
| Lackabane | 284 | West Muskerry | Drishane |
| Lackanastooka | 431 | Duhallow | Nohavaldaly |
| Lackdotia | 411 | West Muskerry | Drishane |
| Laght | 423 | Duhallow | Dromtarriff |
| Laghtsigh | 442 | Duhallow | Nohavaldaly |
| Laharan | 187 | West Muskerry | Kilcorney |
| Liscahane | 767 | West Muskerry | Drishane |
| Liscreagh | 405 | West Muskerry | Drishane |
| Lisheenafeela | 317 | Duhallow | Cullen |
| Lislehane | 175 | Duhallow | Cullen |
| Lisnaboy Lower | 247 | Duhallow | Cullen |
| Lisnaboy Upper | 267 | Duhallow | Cullen |
| Lisnashearshane | 296 | Duhallow | Cullen |
| Lissacapia | 55 | West Muskerry | Kilcorney |
| Lissaniska | 149 | Duhallow | Cullen |
| Loumanagh North | 211 | Duhallow | Kilmeen |
| Loumanagh South | 528 | Duhallow | Kilmeen |
| Lyravuckane | 227 | Duhallow | Cullen |
| Lyredaowen | 489 | Duhallow | Nohavaldaly |
| Maulyclickeen | 353 | Duhallow | Kilmeen |
| Meenagloghrane | 365 | Duhallow | Cullen |
| Meenskeha East | 222 | Duhallow | Cullen |
| Meenskeha West | 250 | Duhallow | Cullen |
| Milleenylegane | 122 | Duhallow | Cullen |
| Millstreet | Town | West Muskerry | Drishane |
| Minehill | 165 | Duhallow | Dromtarriff |
| Moher | 427 | Duhallow | Cullen |
| Mountinfant | 311 | Duhallow | Nohavaldaly |
| Mountleader | 254 | West Muskerry | Drishane |
| Mullaghroe North | 166 | Duhallow | Cullen |
| Mullaghroe South | 186 | Duhallow | Cullen |
| Mushera | 452 | West Muskerry | Kilcorney |
| Mushera | 649 | West Muskerry | Drishane |
| Nohaval Lower | 414 | Duhallow | Nohavaldaly |
| Nohaval Upper | 477 | Duhallow | Nohavaldaly |
| Nohavaldaly | 964 | Duhallow | Nohavaldaly |
| Park | 233 | Duhallow | Nohavaldaly |
| Prohus | 312 | Duhallow | Dromtarriff |
| Rathcool | 979 | Duhallow | Dromtarriff |
| Rathduane | 788 | West Muskerry | Drishane |
| Rathroe | 223 | Duhallow | Cullen |
| Scrahan | 304 | Duhallow | Nohavaldaly |
| Shanakill | 255 | West Muskerry | Kilcorney |
| Shanaknock | 348 | Duhallow | Drishane |
| Shanbally | 428 | Duhallow | Nohavaldaly |
| Skagh | 296 | Duhallow | Cullen |
| Tober | 109 | West Muskerry | Drishane |
| Toorboney | 367 | West Muskerry | Drishane |
| Tooreenbane | 594 | West Muskerry | Drishane |
| Tooreenreaghy | 143 | Duhallow | Nohavaldaly |
| Tullig | 1,730 | West Muskerry | Drishane |
| Two Gneeves | 199 | Duhallow | Cullen |
| Ummeraboy East | 371 | Duhallow | Kilmeen |
| Ummeraboy West | 709 | Duhallow | Kilmeen |
| Urraghilmore East | 417 | Duhallow | Kilmeen |
| Urraghilmore West | 416 | Duhallow | Kilmeen |
