List of municipalities in Cantabria
This is a list of the 102 municipalities in the province and autonomous community of Cantabria, Spain.
| Name | Area | Population | Population | Population | Comarca |
| Alfoz de Lloredo | 46.3 | 2,535 | 2,504 | 2,408 | Western Coast |
| Ampuero | 32.3 | 3,578 | 4,261 | 4,219 | Asón-Agüera |
| Anievas | 20.9 | 378 | 351 | 279 | Besaya Valley |
| Arenas de Iguña | 86.8 | 1,961 | 1,796 | 1,676 | Besaya Valley |
| Argoños | 5.5 | 1,035 | 1,699 | 1,723 | Trasmiera |
| Arnuero | 24.7 | 1,826 | 2,119 | 2,108 | Trasmiera |
| Arredondo | 46.8 | 585 | 519 | 470 | Asón-Agüera |
| Bárcena de Cicero | 36.6 | 2,478 | 4,107 | 4,186 | Trasmiera |
| Bárcena de Pie de Concha | 30.5 | 841 | 767 | 680 | Besaya Valley |
| Bareyo | 32.4 | 1,733 | 2,065 | 1,972 | Trasmiera |
| Cabezón de la Sal | 33.6 | 7,486 | 8,313 | 8,349 | Saja and Nansa valleys |
| Cabezón de Liébana | 81.4 | 692 | 704 | 592 | Liébana |
| Cabuérniga | 86.5 | 1,120 | 1,071 | 999 | Saja and Nansa valleys |
| Camaleño | 161.8 | 1,107 | 1,029 | 946 | Liébana |
| Camargo | 36.6 | 24,498 | 31,498 | 30,263 | Bay of Santander |
| Campoo de Enmedio | 91.1 | 3,928 | 3,805 | 3,750 | Campoo-Los Valles |
| Campoo de Yuso | 89.7 | 759 | 691 | 668 | Campoo-Los Valles |
| Cartes | 19.0 | 3,645 | 5,534 | 5,778 | Besaya Valley |
| Castañeda | 19.2 | 1,549 | 2,524 | 2,809 | Valles Pasiegos |
| Castro Urdiales | 96.7 | 21,081 | 32,487 | 31,977 | Eastern Coast |
| Cieza | 44.1 | 687 | 602 | 539 | Besaya Valley |
| Cillorigo de Liébana | 104.5 | 1,089 | 1,341 | 1,337 | Liébana |
| Colindres | 5.9 | 6,924 | 8,109 | 8,453 | Eastern Coast |
| Comillas | 18.6 | 2,289 | 2,435 | 2,156 | Western Coast |
| Los Corrales de Buelna | 45.4 | 10,798 | 11,521 | 10,910 | Besaya Valley |
| Corvera de Toranzo | 49.5 | 2,128 | 2,158 | 2,041 | Valles Pasiegos |
| El Astillero | 6.8 | 14,353 | 17,854 | 18,108 | Bay of Santander |
| Entrambasaguas | 43.2 | 2,399 | 4,636 | 5,090 | Trasmiera |
| Escalante | 19.1 | 742 | 762 | 771 | Trasmiera |
| Guriezo | 74.5 | 1,765 | 2,406 | 2,347 | Asón-Agüera |
| Hazas de Cesto | 21.9 | 1,220 | 1,510 | 1,541 | Trasmiera |
| Hermandad de Campoo de Suso | 222.7 | 1,877 | 1,752 | 1,627 | Campoo-Los Valles |
| Herrerías | 40.3 | 713 | 648 | 609 | Saja and Nansa valleys |
| Lamasón | 71.2 | 378 | 304 | 287 | Saja and Nansa valleys |
| Laredo | 15.7 | 12,559 | 12,088 | 11,148 | Eastern Coast |
| Liendo | 26.0 | 889 | 1,284 | 1,194 | Eastern Coast |
| Liérganes | 36.7 | 2,305 | 2,444 | 2,370 | Trasmieres |
| Limpias | 10.1 | 1,356 | 1,861 | 1,867 | Asón-Agüera |
| Luena | 90.5 | 872 | 694 | 601 | Valles Pasiegos |
| Marina de Cudeyo | 28.4 | 5,058 | 5,264 | 5,118 | Trasmiera |
| Mazcuerras | 55.6 | 1,846 | 2,122 | 2,120 | Saja and Nansa valleys |
| Medio Cudeyo | 26.8 | 6,287 | 7,588 | 7,520 | Trasmiera |
| Meruelo | 16.4 | 1,188 | 1,781 | 1,982 | Trasmiera |
| Miengo | 24.5 | 3,629 | 4,664 | 4,713 | Bay of Santander |
| Miera | 33.8 | 488 | 431 | 389 | Trasmiera |
| Molledo | 71.1 | 1,848 | 1,616 | 1,544 | Besaya Valley |
| Noja | 9.2 | 2,104 | 2,653 | 2,539 | Trasmiera |
| Penagos | 31.7 | 1,703 | 1,926 | 2,108 | Bay of Santander |
| Peñarrubia | 54.3 | 317 | 362 | 321 | Saja and Nansa valleys |
| Pesaguero | 70.0 | 378 | 341 | 285 | Liébana |
| Pesquera | 8.9 | 85 | 72 | 68 | Campoo-Los Valles |
| Piélagos | 83.3 | 13,035 | 23,036 | 25,223 | Bay of Santander |
| Polaciones | 89.8 | 263 | 254 | 238 | Saja and Nansa valleys |
| Polanco | 18.0 | 3,762 | 5,477 | 5,845 | Besaya Valley |
| Potes | 7.6 | 1,557 | 1,476 | 1,350 | Liébana |
| Puente Viesgo | 36.1 | 2,326 | 2,869 | 2,868 | Valles Pasiegos |
| Ramales de la Victoria | 33.0 | 2,248 | 2,753 | 2,881 | Asón-Agüera |
| Rasines | 42.9 | 959 | 1,023 | 952 | Asón-Agüera |
| Reinosa | 4.1 | 10,694 | 10,050 | 9,095 | Campoo-Los Valles |
| Reocín | 32.1 | 6,999 | 8,317 | 8,381 | Saja and Nansa valleys |
| Ribamontán al Mar | 36.9 | 3,688 | 4,475 | 4,447 | Trasmiera |
| Ribamontán al Monte | 42.2 | 2,005 | 2,165 | 2,257 | Trasmiera |
| Rionansa | 118.0 | 1,344 | 1,091 | 1,038 | Saja and Nansa valleys |
| Riotuerto | 30.5 | 1,466 | 1,634 | 1,609 | Trasmiera |
| Las Rozas de Valdearroyo | 57.4 | 288 | 292 | 268 | Campoo-Los Valles |
| Ruente | 65.9 | 964 | 1,050 | 1,026 | Saja and Nansa valleys |
| Ruesga | 88.0 | 1,185 | 989 | 872 | Asón-Agüera |
| Ruiloba | 15.1 | 771 | 803 | 732 | Western Coast |
| San Felices de Buelna | 36.2 | 2,205 | 2,355 | 2,387 | Besaya Valley |
| San Miguel de Aguayo | 36.0 | 153 | 175 | 147 | Campoo-Los Valles |
| San Pedro del Romeral | 57.4 | 621 | 507 | 466 | Valles Pasiegos |
| San Roque de Riomiera | 35.7 | 482 | 423 | 370 | Valles Pasiegos |
| San Vicente de la Barquera | 41.0 | 4,391 | 4,411 | 4,158 | Western Coast |
| Santa Cruz de Bezana | 17.3 | 9,149 | 12,094 | 12,964 | Bay of Santander |
| Santa María de Cayón | 48.2 | 6,355 | 9,076 | 9,060 | Valles Pasiegos |
| Santander | 34.8 | 180,717 | 178,085 | 172,044 | Bay of Santander |
| Santillana del Mar | 28.5 | 3,957 | 4,187 | 4,172 | Western Coast |
| Santiurde de Reinosa | 31.0 | 355 | 295 | 257 | Campoo-Los Valles |
| Santiurde de Toranzo | 36.8 | 1,640 | 1,596 | 1,823 | Valles Pasiegos |
| Santoña | 11.5 | 11,053 | 11,468 | 11,060 | Trasmiera |
| Saro | 17.8 | 528 | 507 | 512 | Valles Pasiegos |
| Selaya | 39.3 | 1,948 | 2,007 | 1,891 | Valles Pasiegos |
| Soba | 214.1 | 1,569 | 1,318 | 1,193 | Asón-Agüera |
| Solórzano | 25.5 | 991 | 1,033 | 1,050 | Trasmiera |
| Suances | 24.6 | 6,573 | 8,403 | 8,716 | Besaya Valley |
| Los Tojos | 89.5 | 424 | 429 | 400 | Saja and Nansa valleys |
| Torrelavega | 35.5 | 55,477 | 55,125 | 51,687 | Besaya Valley |
| Tresviso | 16.2 | 52 | 73 | 64 | Liébana |
| Tudanca | 52.4 | 239 | 167 | 140 | Saja and Nansa valleys |
| Udías | 19.6 | 831 | 851 | 925 | Western Coast |
| Val de San Vicente | 50.9 | 2,604 | 2,827 | 2,772 | Western Coast |
| Valdáliga | 97.8 | 2,495 | 2,315 | 2,191 | Western Coast |
| Valdeolea | 83.7 | 1,405 | 1,135 | 967 | Campoo-Los Valles |
| Valdeprado del Río | 89.3 | 327 | 362 | 316 | Campoo-Los Valles |
| Valderredible | 298.2 | 1,120 | 1,087 | 974 | Campoo-Los Valles |
| Valle de Villaverde | 19.5 | 365 | 358 | 286 | Asón-Agüera |
| Vega de Liébana | 133.2 | 964 | 840 | 745 | Liébana |
| Vega de Pas | 87.5 | 1,011 | 828 | 775 | Valles Pasiegos |
| Villacarriedo | 50.7 | 1,755 | 1,749 | 1,604 | Valles Pasiegos |
| Villaescusa | 28.0 | 3,323 | 3,735 | 3,912 | Bay of Santander |
| Villafufre | 30.1 | 1,149 | 1,113 | 1,029 | Valles Pasiegos |
| Voto | 77.7 | 2,260 | 2,772 | 2,745 | Trasmiera |