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Geo Note: Philippines - Administrative area update [2019]
Monday, 27 Jan 2020 11:19 ET
By Elizabeth Felton
Summary
January 2020 -- Data Buffet now carries a reference file for administrative area definitions for the Philippines, as mutated between 2015 and 2019. One region was dissolved and its parts redistributed to two adjacent regions (3 discontinued geo codes, 2 new).
Detail

Introduction

The Philippine Standard Geographic Code (PSGC) is a systematic classification and coding of geographic areas in the Philippines. It is based on the four (4) well-established hierarchical levels of geographical-political subdivisions of the country, viz., administrative region,  province, municipality/city, and barangay. Districts are the same level as provinces, but defined differently.

We have synthesized official references into coherent annual lists ("geo code vintages") at each geo level, which you can use to answer questions like "at time T, what are the component cities C of region R? We account for the three possible circumstances ("mutations"):

  1. The boundaries of an existing area change, but its name is retained -- Replace the area by declaring a new geo code, and substitute into the "after" vintage.
  2. A new area is created, usually in conjunction with the redefinition of an existing area -- Declare a new geo code, and add to the "after" vintage.
  3. An existing area is terminated, usually because it has fissioned -- Retire the geo code from the "after" vintage.

Note that a geo code may remain in statistical use even after the area has been terminated as an administrative entity. We do not double-guess our historical sources.

Summary of mutations

Table 1. Counts of areas (not geo codes) at each geo level in each vintage; counts of each of mutation between the vintages.

Geo level20192015ReplaceAddRetire
Regions 17 18 2 0 1
Districts 4 4 0 0 0
Provinces 116 116 0 0 0

Specific mutations

Table 2. Regions retired or replaced.

RegionsCodeNote
Region VI (Western Visayas) IPHL_WE Gained part of NIR.
Region VII (Central Visayas) IPHL_CN Gained part of NIR.
Negros Island Region (NIR) (a.k.a. Region XVIII) IPHL_NR Divided between Region VI and Region VII.

Table 3. Regions added or replaced.

RegionsCodeNote
Region VI (Western Visayas) IPHL_WV Gained Negros Occidental, City of Bacolod (capital of NIR).
Region VII (Central Visayas) IPHL_CE Gained Negros Oriental.

Table 4. Districts retired - None.

Table 5. Districts added - None.

Table 6. Provinces retired - None.

Table 7. Provinces added - None.

Reference files

The reference file is an Excel workbook with a separate worksheet for each geo type, tabulating (as applicable) the area name, type, Data Buffet geo code, and parent area.

The "after" geo vintage:

  • Go to: DataBuffet.com » menu:Tools » Reference Files » Geographies » Philippines - Geographic Lists - 2019
  • Direct link: IPHL_GeographyLists_2019.xlsx

The "before" geo vintage:


References

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