Municipality | Population* | No. of Barangays | Income Class** |
Alfonso Castaneda | 4,808 | 6 | 5th Class |
Ambaguio | 9,759 | 8 | 5th Class |
Aritao | 31,705 | 22 | 3rd Class |
Bagabag | 30,652 | 17 | 3rd Class |
Bambang | 41,393 | 25 | 3rd Class |
Bayombong | 50,563 | 25 | 3rd Class |
Diadi | 14,374 | 19 | 4th Class |
Dupax del Norte | 23,196 | 15 | 4th Class |
Dupax del Sur | 16,371 | 19 | 4th Class |
Kasibu | 28,239 | 30 | 4th Class |
Kayapa | 19,193 | 30 | 4th Class |
Quezon | 15,986 | 12 | 5th Class |
Santa Fe | 12,949 | 16 | 4th Class |
Solano | 52,391 | 22 | 2nd Class |
Villaverde | 15,392 | 9 | 5th Class |
*According to 2000 census
**Class explanation
Municipalities are divided into income classes according to their average annual income during the last three calendar years:
1st Class - P35,000,000 or more.
2nd Class - P27,000,000 or more but less than P35,000,000.
3rd Class - P21,000,000 or more but less than P27,000,000.
4th Class - P13,000,000 or more but less than P21,000,000.
5th Class - P7,000,000 or more but less than P13,000,000.
6th Class - Below P7,000,000