2007 REGISTERED VOTERS
| Region/Province | Total No. of Barangays | Total No. of Precincts | Total No. of Clustered Precincts | Total No. of Registered Voters |
| CAR | 1,176 | 5,328 | 4,044 | 789,451 |
| Apayao | 133 | 380 | 273 | 54,597 |
| Abra | 303 | 948 | 708 | 140,732 |
| Benguet | 269 | 1,981 | 1,609 | 307,572 |
| Ifugao | 175 | 637 | 473 | 91,996 |
| Kalinga | 152 | 761 | 549 | 108,607 |
| Mt. Province | 144 | 621 | 432 | 85,947 |
| REGION I | 3,265 | 17,018 | 12,016 | 2,404,423 |
| Ilocos Sur | 768 | 2,501 | 1,723 | 345,952 |
| Ilocos Norte | 557 | 2,187 | 1,571 | 315,645 |
| La Union | 576 | 2,677 | 1,909 | 382,019 |
| Pangasinan | 1,364 | 9,653 | 6,813 | 1,360,807 |
| REGION II | 2,311 | 11,225 | 7,871 | 1,600,001 |
| Batanes | 29 | 64 | 48 | 9,345 |
| Cagayan | 820 | 3,858 | 2,556 | 523,135 |
| Isabela | 1,055 | 5,326 | 3,793 | 766,645 |
| Nueva Vizcaya | 275 | 1,402 | 1,062 | 217,312 |
| Quirino | 132 | 575 | 412 | 83,564 |
| REGION III | 3,102 | 35,345 | 25,372 | 5,103,163 |
| Aurora | 151 | 755 | 514 | 102,541 |
| Bataan | 237 | 2,788 | 1,912 | 394,992 |
| Bulacan | 569 | 10,276 | 7,099 | 1,431,720 |
| Nueva Ecija | 849 | 7,414 | 5,387 | 1,076,728 |
| Pampanga | 538 | 7,339 | 5,655 | 1,131,329 |
| Tarlac | 511 | 4,039 | 2,934 | 584,996 |
| Zambales | 247 | 2,734 | 1,871 | 380,857 |
| REGION IV | 5,469 | 48,397 | 34,591 | 7,012,454 |
| REGION IV-A | 4,011 | 39,721 | 28,258 | 5,744,623 |
| Batangas | 1,078 | 8,086 | 5,825 | 1,173,867 |
| Laguna | 674 | 8,714 | 6,187 | 1,248,760 |
| Quezon | 1,242 | 6,406 | 4,296 | 877,275 |
| Cavite | 829 | 9,167 | 6,691 | 1,374,846 |
| Rizal | 188 | 7,348 | 5,259 | 1,069,875 |
| REGION IV-B | 1,458 | 8,676 | 6,333 | 1,267,831 |
| Marinduque | 218 | 858 | 563 | 114,414 |
| Occidental Mindoro | 162 | 1,308 | 948 | 195,437 |
| Oriental Mindoro | 426 | 2,538 | 1,821 | 362,818 |
| Palawan | 433 | 2,964 | 2,223 | 445,041 |
| Romblon | 219 | 1,008 | 778 | 150,121 |
| REGION V | 3,471 | 17,190 | 12,901 | 2,550,756 |
| Albay | 720 | 4,110 | 3,298 | 630,051 |
| Camarines Norte | 282 | 1,585 | 1,091 | 222,573 |
| Camarines Sur | 1,063 | 5,376 | 4,076 | 813,811 |
| Catanduanes | 315 | 927 | 680 | 132,899 |
| Masbate | 550 | 2,926 | 1,962 | 398,326 |
| Sorsogon | 541 | 2,266 | 1,794 | 353,096 |
| REGION VI | 4,050 | 24,955 | 18,159 | 3,668,508 |
| Aklan | 327 | 1,916 | 1,330 | 273,711 |
| Antique | 590 | 1,883 | 1,327 | 259,814 |
| Capiz | 473 | 2,388 | 2,014 | 384,062 |
| Guimaras | 98 | 626 | 416 | 85,274 |
| Iloilo | 1,901 | 8,237 | 5,853 | 1,166,309 |
| Negros Occidental | 661 | 9,905 | 7,219 | 1,499,338 |
| REGION VII | 3,003 | 22,982 | 17,174 | 3,464,222 |
| Bohol | 1,109 | 4,409 | 3,263 | 660,972 |
| Cebu | 1,203 | 14,029 | 10,434 | 2,104,908 |
| Negros Oriental | 557 | 4,159 | 3,189 | 641,049 |
| Siquijor | 134 | 385 | 288 | 57,293 |
| REGION VIII | 4,390 | 15,768 | 11,083 | 2,197,641 |
| Eastern Samar | 597 | 1,691 | 1,205 | 234,302 |
| Leyte | 1,641 | 6,645 | 4,728 | 941,022 |
| Northern Samar | 569 | 2,158 | 1,479 | 297,453 |
| Samar | 951 | 3,000 | 2,121 | 412,666 |
| Southern Leyte | 500 | 1,616 | 1,119 | 223,657 |
| Biliran | 132 | 658 | 431 | 88,541 |
| REGION IX | 1,859 | 11,177 | 8,645 | 1,697,802 |
| Zamboanga del Norte | 691 | 3,355 | 2,693 | 522,145 |
| Zamboanga del Sur | 779 | 5,865 | 4,425 | 875,657 |
| Zamboanga Sibugay | 389 | 1,957 | 1,527 | 300,000 |
| REGION X | 2,022 | 14,127 | 10,930 | 2,117,379 |
| Bukidnon | 464 | 3,955 | 3,150 | 601,013 |
| Camiguin | 58 | 360 | 303 | 53,875 |
| Lanao del Norte | 506 | 3,186 | 2,438 | 483,907 |
| Misamis Occidental | 490 | 2,059 | 1,587 | 310,824 |
| Misamis Oriental | 504 | 4,567 | 3,452 | 667,760 |
| REGION XI | 1,162 | 15,842 | 11,038 | 2,225,420 |
| Compostela Valley | 237 | 2,216 | 1,598 | 317,369 |
| Davao del Norte | 223 | 3,181 | 2,202 | 428,817 |
| Davao del Sur | 519 | 8,764 | 5,982 | 1,230,864 |
| Davao Oriental | 183 | 1,681 | 1,256 | 248,370 |
| REGION XII | 1,157 | 12,341 | 8,710 | 1,763,812 |
| Sarangani | 140 | 1,563 | 1,116 | 223,003 |
| South Cotabato | 225 | 4,235 | 3,120 | 628,635 |
| North Cotabato | 543 | 4,137 | 2,737 | 556,678 |
| Sultan Kudarat | 249 | 2,406 | 1,737 | 355,496 |
| REGION XIII (CARAGA) | 1,310 | 8,225 | 6,263 | 1,238,460 |
| Agusan del Norte | 252 | 2,128 | 1,630 | 330,936 |
| Agusan del Sur | 314 | 1,878 | 1,422 | 277,840 |
| Dinagat Islands | 100 | 471 | 327 | 65,492 |
| Surigao del Norte | 335 | 1,784 | 1,327 | 261,735 |
| Surigao del Sur | 309 | 1,964 | 1,557 | 302,457 |
| ARMM | 2,552 | 10,289 | 7,698 | 1,504,437 |
| Lanao del Sur | 1,158 | 2,648 | 2,021 | 396,927 |
| Maguindanao | 316 | 2,600 | 1,680 | 337,044 |
| Shariff Kabunsuan | 210 | 1,201 | 1,003 | 198,330 |
| Sulu | 410 | 1,970 | 1,360 | 250,457 |
| Tawi-Tawi | 203 | 814 | 715 | 140,232 |
| Basilan | 255 | 1,056 | 919 | 181,447 |