Philippine Standard Geographic Code (PSGC)

Technical Notes

Procedures in the Preparation of the 1996 PSGC

Preparation of the Masterlist of Barangays
as of December 31, 1996

Considering the inconsistencies between the lists of barangays of the COMELEC, NBOO, and NSO, the first step undertaken by the TWG was to reconcile the different lists and come up with a masterlist acceptable to all member agencies. The PSGC computer file update based on the 1980 Census of Population and Housing (CPH) served as the reference document in the preparation of the 1996 PSGC.

In coming up with the masterlist of barangays, the TWG on Geographic Classification (TWG-GC) matched the latest individual barangay lists of COMELEC (1992 election results), NBOO (December 30, 1992 update) and NSO (1990 CPH results). All barangays that matched or commonly listed by the three agencies were automatically included in the masterlist. Where the spelling of the name of a barangay differed in the three lists (e.g., using k instead of c or u instead of o, etc.), verification of the correct spelling from official/legal documents available from the files of member agencies was made. Otherwise, the TWG adopted the majority rule, i.e., the TWG adopted the spelling most frequently used in the different lists.

Unmatched barangays or those found only in one or two out of the three lists used were subjected to further verification to ascertain their existence (or non-existence) using the following criteria:

  • Legal basis of creation (e.g., Congressional Acts, Presidential Decrees, Executive Orders, Provincial Board Resolutions, etc.) and COMELEC report on the results of plebiscite approving the creation/renaming/transfer of barangay, municipality or province as the case may be;

  • The barangay has held barangay elections as shown by the COMELEC records; and

  • Presence of set of barangay officials as shown from the records of NBOO/DILG.

Where there are no available records in the central office to verify the existence of unmatched barangays based on the above criteria, field verification was resorted to by some members of the TWG or through their field personnel such as the Municipal Census Officers (MCO) of NSO, Local Government Operations Officer (LGOO) of the DILG, or Election Officers of the COMELEC. In some cases, the TWG also wrote directly to the Municipal Mayors.

All the unmatched barangays which satisfied any one of the above criteria including those that were found to have been abandoned or temporarily evacuated due to natural disaster or peace and order situation except when legally abolished, were also included in the masterlist.

Where a barangay is claimed by two adjacent municipalities (disputed barangay) and no court decision has been made yet the barangay is temporarily listed in the municipality reflected in the majority of the list.

The resulting masterlist of reconciled barangays was updated to April 15, 19941 and finally to December 31, 1996 based on the barangay updates provided by the NBOO/DILG.

Updating/Assigning of Codes to the 1996 Barangay Masterlist

Using the updated PSGC computer file based on the results of the 1980 CPH, geographical-political units (from regional down to barangay) created after May 1, 1980 up to December 31, 1996 were assigned codes in accordance with the procedures described in Section 5 of the 1977 PSGC Municipality Code Book.

  • Changes at the Region Level

Administrative regions created after the May 1, 1980 CPH until December 31, 1996 (except Cordillera Administrative Region (CAR)), were assigned codes corresponding to its region numbers. While autonomous regions were assigned codes in descending order. Thus, NCR (National Capital Region) was assigned code 99, Cordillera Administrative Region (CAR) code was 98 and Autonomous Region in Muslim Mindanao (ARMM) was 97.

  • Changes at the Province Level

Provinces created out of the fragmentation of a certain province such as the provinces of Biliran from Leyte, Guimaras from Iloilo, Sarangani from South Cotabato, and Apayao from Kalinga-Apayao were given codes which were next to the last entry in the province code series in the order of their dates of creation. Thus, Biliran which was created ahead of the other newly created provinces, was assigned the code 78; Guimaras, 79; Sarangani, 80; and Apayao, 81 being the last province to be created as of December 31, 1996. Leyte, Iloilo, South Cotabato, and Kalinga being the originating/parent provinces retained their province codes.

Similarly, provinces which were transferred to another region retained their province codes while adopting the code of the region to which they were transferred.

A special province code 98 has been assigned to such cases as Marawi and Cotabato Cities whose respective provinces belong to ARMM but the cities themselves have remained in Region XII. However, this is just a temporary solution to the unique situation where the two cities elected to remain in Region XII while their mother provinces elected to be part of ARMM.

Change in province names only as in the case of Davao, Cotabato, and Samar which were formerly called Davao del Norte, North Cotabato and Western Samar, respectively did not cause any change in their respective province codes.

  • Changes at the Municipality Level

As in the case of newly created province, a municipality created within the province was also designated a code which was next to the last entry in the municipality code series. The original or mother municipality (one that retains the seat of government) retained the municipality code. In cases where two or more new municipalities were created simultaneously in a province, they were assigned codes sequentially according to their alphabetic order.

Municipalities transferred to another province assumed the province code to which they were transferred. The transferred municipality was assigned a new municipality code which is the number immediately following the code of the last municipality in its new province. In cases where more than one municipalities were transferred to the same province at the same time, the transferred municipalities were arranged alphabetically and placed at the bottom of the municipality list of their new province.

As mentioned in Section 2.2.2, cities such as Marawi and Cotabato whose respective provinces belong to ARMM but the cities themselves remain in Region XII were assigned special province code (e.g., 98) while retaining their existing municipality codes.

Municipalities which merely changed names retained their present municipality codes. For historical purposes, the old name is enclosed in parenthesis after the new name.

  • Changes at the Barangay Level

Using the updated PSGC based on the 1980 CPH as the reference document, barangays created after the May 1, 1980 CPH to May 1, 1990 CPH were sorted alphabetically and added to the last barangay entry in the 1980 barangay list. Similarly, barangays created after the May 1990 CPH to April 15, 1994 were arranged alphabetically and added to the last barangay created before May 1990 CPH. 

The resulting list thus, contains three segments: (1) the original barangay list (as of May 1, 1980), (2) barangays created after May 1980 CPH to May 1990 CPH which were arranged alphabetically, and (c) barangays created after May 1990 CPH to April 15, 1994, also alphabetically arranged. Using this list, barangays created after May 1, 1980 to April 15, 1994 were assigned codes sequentialy starting from the number next to the last barangay code in the 1980 series. 

The original barangay list (as of May 1, 1980) retain their respective codes. Barangays created after April 15, 1994 to December 31, 1996 were added to the list based on their dates of creation, hence, the barangay created last will be the last in the list. However, in cases where documents supporting the creation of a barangay were received after the deadline set for updating, this barangay was added in the list notwithstanding its date of creation.

In the case of barangays which were fragmented to form two or more barangays, the originating/ parent barangay which usually retains the name, barangay officials or seat of government retained their existing codes. The other barangays created out of the fragmentation were treated as newly created barangays and were assigned codes sequentially, following their alphabetic or numeric order (e.g., Barangay 1, Barangay 2 or Barangay I, Barangay II, etc.), starting from the number next to the last code of the barangay in that municipality.

The codes given to these resulting barangays followed the code of the barangay immediately preceding them in the list. Where no information is available to determine the mother barangay, the split barangays were sorted alphabetically or numerically. As a matter of convention, the first barangay in the sequence is taken as the parent barangay.

Barangays transferred from another municipality were likewise treated as newly created barangays in the municipality where they were transferred, and assigned new codes in accordance with the procedures for newly created barangays in Section 2.2.5

Barangays carried by municipalities which were transferred to another province retained their existing barangay codes but adopted a new municipality and province code.

Reinstated barangays, i.e., those previously existing barangays which were delisted then listed back, assumed their original codes.

Barangays which merely changed names retained their present barangay codes. As in the municipalities, the old name is enclosed in parenthesis after the new name.