# Mega Manila

Mega Manila is a megalopolis on the island of Luzon in the Philippines. There are varying definitions of the megalopolis, but it is generally seen as encompassing the administrative regions of Central Luzon, Calabarzon, and Metro Manila. On some occasions, the administrative region of Mimaropa (excluding Palawan) is also included.
It is frequently used in the press, advertising, television, and radio to refer to provinces bound to Manila, in contrast to the term Greater Manila Area, which is academically used to describe the urbanization process that has long spilled out of Metro Manila's borders, also known as the built-up area. Mapping out the built-up area around Manila requires finer granularity than the more generic term Mega Manila.
It is also being used more and more recently in planning for infrastructure projects by the government, particularly by the National Economic and Development Authority (NEDA) and the Japan International Cooperation Agency (JICA).
Mega Manila is used in general reference to the relationship of Metro Manila to the surrounding provinces. It references only provinces and not the exact settlement patterns of cities, towns, and barangays, which may be urban, suburban, mountainous, or rural areas that are still part of provinces close enough to Manila to be lumped into the definition.

## Definitions
### Philippine Information Agency

Mega Manila, as a loose metropolitan area defined by the Philippine Information Agency (PIA), is divided into the National Capital Region (Metro Manila) and the suburbs of Central Luzon, Calabarzon, and Mimaropa.
Mega Manila's 2015 population was projected at 40,368,979 or 40% of the country's population, and covers roughly half of Luzon, with an area of 52,097.66 square kilometers, including many rural areas.

### National Economic and Development Authority

The National Economic and Development Authority (NEDA) defines Mega Manila as Metro Manila and the surrounding specific provinces of Bulacan, Rizal, Cavite, and Laguna, especially on its study "Roadmap for Transport Infrastructure Development for Metro Manila and its Surrounding Areas (Region III and Region IV-A)".
Notably, these collection of areas is also known as the Greater Manila Area. Meanwhile, the NEDA study, which is a collaboration with the Japan International Cooperation Agency (JICA), considers Metro Manila, Central Luzon, and Calabarzon as the Greater Capital Region (GCR).

### TV rating companies

TV ratings agency AGB Nielsen Philippines and Kantar Media Philippines consider Metro Manila and the provinces of Bulacan, Cavite, Laguna and Rizal as "Mega Manila" for their TV ratings gathering (area highlighted in blue on the map), a much stricter definition than the PIA. Using census population in 2010 the area has a population of 25,066,000 or about 26.6% of the population in an area roughly the size of Los Angeles County and average density over 2000 people per square kilometer. As a comparison, only the cities of Tokyo, Jakarta, and Mexico City have reached 25 million people, Shanghai may have but there is not enough detail in suburban statistics on it. Both Mega Manila definitions only include entire provinces, without finer detail.
This Nielsen defined area has a higher ownership of televisions per household anywhere in the country due to its relative economic prosperity as compared to other areas in the country. Radio ratings agency Radio Research Council (provided by KBP) also provide measurement of audience ratings.
The stricter Nielsen definition closer reflects the built-up area surrounding Manila than the PIA definition, Yet even the Nielsen definition of Mega Manila cannot be merely equated to the built-up area; the Nielsen definition includes significant undeveloped forested areas, while completely excluding contiguous developed settlements in such places like northern Batangas. Thus the academic definition as used for urban studies for built-up area surrounding Manila requires yet another term (e.g. Greater Manila Area) to disambiguate from the already used terms Mega Manila and Metro Manila.
Comparison of definitions by source :
| Source | Term | NCR | Central Luzon | Central Luzon | Central Luzon | Central Luzon | Central Luzon | Central Luzon | Central Luzon | Calabarzon | Calabarzon | Calabarzon | Calabarzon | Calabarzon | Mimaropa | Mimaropa | Mimaropa | Mimaropa | Mimaropa |
| Source | Term | NCR | AUR | BAN | BUL | NUE | PAM | TAR | ZMB | BTG | CAV | LAG | QUE | RIZ | MAD | PLW | ROM | MDC | MDR |
| Mega Manila ||||||||||||||||||||
| PIA | Mega Manila | | | | | | | | | | | | | | | | | | |
| AGB Nielsen | Mega Manila | | | | | | | | | | | | | | | | | | |
| Kantar Media | Mega Manila | | | | | | | | | | | | | | | | | | |
| NEDA, JICA | Mega Manila | | | | | | | | | | | | | | | | | | |
| Other terms ||||||||||||||||||||
| — | Greater Manila Area | | | | | | | | | | | | | | | | | | |
| NEDA, JICA | Greater Capital Region | | | | | | | | | | | | | | | | | | |

## Statistics

Mega Manila encompasses the county's three most populated administrative regions – Calabarzon at number one, followed by Metro Manila, and Central Luzon at third. The total population of Metro Manila and all the 12 provinces, including their three independent cities, 47 component cities, and 238 municipalities, is 41,099,507 as of 2020. This means 38.6 percent of Philippine's total population all live inside Mega Manila.
| Region | Provinces | HUC | Ind. cities | Com. cities | Municipalities | Population (2020) |
| Metro Manila | — | 16 | — | — | 1 | 13,484,462 |
| Central Luzon | Aurora | 0 | 0 | 0 | 8 | 235,750 |
| Central Luzon | Bataan | 0 | 0 | 1 | 11 | 853,373 |
| Central Luzon | Bulacan | 0 | 0 | 3 | 21 | 3,708,890 |
| Central Luzon | Nueva Ecija | 0 | 0 | 5 | 27 | 2,310,134 |
| Central Luzon | Pampanga | 1 | Angeles City | 2 | 19 | 2,437,709 |
| Central Luzon | Tarlac | 0 | 0 | 1 | 17 | 1,503,456 |
| Central Luzon | Zambales | 1 | Olongapo | 0 | 13 | 649,615 |
| Calabarzon | Batangas | 0 | 0 | 5 | 29 | 2,908,494 |
| Calabarzon | Cavite | 0 | 0 | 7 | 16 | 4,344,829 |
| Calabarzon | Laguna | 0 | 0 | 6 | 24 | 3,382,193 |
| Calabarzon | Rizal | 0 | 0 | 1 | 13 | 3,330,143 |
| Calabarzon | Quezon | 1 | Lucena | 0 | 39 | 1,950,459 |
| Total | 12 | 19 | 3 | 47 | 238 | 41,099,507 |

## Areas under Mega Manila
### Metro Manila

Officially called the National Capital Region, it consists the Philippines' capital city Manila, 15 other cities, and one municipality. It is the seat of government of the Philippines. The cities of Metro Manila are the following:
* City of Manila
* Quezon City
* Caloocan
* Las Piñas
* Makati
* Malabon
* Mandaluyong
* Marikina
* Muntinlupa
* Navotas
* Parañaque
* Pasay
* Pasig
* San Juan
* Taguig
* Valenzuela
* Pateros (municipality)

### Greater Manila Area

The continuous region surrounding the Metropolitan Manila area. The provinces and the cities inside Greater Manila Area are the following:
* Metropolitan Manila
** City of Manila
** Quezon City
** Caloocan
** Las Piñas
** Makati
** Malabon
** Mandaluyong
** Marikina
** Muntinlupa
** Navotas
** Parañaque
** Pasay
** Pasig
** San Juan
** Taguig
** Valenzuela
** Pateros (municipality)
* Bulacan
** Baliwag
** Malolos
** Meycauayan
** San Jose del Monte
** and 20 municipalities
* Cavite
** Bacoor
** Carmona
** Cavite City
** Dasmariñas
** General Trias
** Imus
** Tagaytay
** Trece Martires
** and 15 municipalities
* Laguna
** Biñan
** Cabuyao
** Calamba
** San Pablo
** San Pedro
** Santa Rosa
** and 24 municipalities
* Rizal
** Antipolo
** and 13 municipalities

### Greater Capital Region

A concept used by urban planners to refer to a region consisting the three regions of Metro Manila, Central Luzon, and Calabarzon. It is used by JICA and NEDA as reference in their planning works. The provinces and cities in the Greater Capital Region are the following: