Talk:Megacity

This is the talk page for discussing improvements to the Megacity article.
This is not a forum for general discussion of the subject of the article.

Add new text under old text.
New to Wikipedia? Welcome! Learn to edit; get help.

Start a new topic

Article policies

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

Archives (index): 1, 2, 3: 2 months

Cities

This article is within the scope of WikiProject Cities, a collaborative effort to improve the coverage of cities, towns and various other settlements on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CitiesWikipedia:WikiProject CitiesTemplate:WikiProject CitiesWikiProject Cities

Urban studies and planning High‑importance

	Architecture portal This article is within the scope of WikiProject Urban studies and planning, a collaborative effort to improve the coverage of Urban studies and planning on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Urban studies and planningWikipedia:WikiProject Urban studies and planningTemplate:WikiProject Urban studies and planningUrban studies and planning
High	This article has been rated as High-importance on the project's importance scale.

Architecture Mid‑importance

	Architecture portal This article is within the scope of WikiProject Architecture, a collaborative effort to improve the coverage of Architecture on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ArchitectureWikipedia:WikiProject ArchitectureTemplate:WikiProject ArchitectureArchitecture
Mid	This article has been rated as Mid-importance on the project's importance scale.

Futures studies Low‑importance

	This article is within the scope of WikiProject Futures studies, a collaborative effort to improve the coverage of Futures studies on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Futures studiesWikipedia:WikiProject Futures studiesTemplate:WikiProject Futures studiesfutures studies
Low	This article has been rated as Low-importance on the importance scale.

Lists Unassessed High‑importance

	This article is within the scope of WikiProject Lists, an attempt to structure and organize all list pages on Wikipedia. If you wish to help, please visit the project page, where you can join the project and/or contribute to the discussion.ListsWikipedia:WikiProject ListsTemplate:WikiProject ListsList
???	This article has not yet received a rating on the project's quality scale.
High	This article has been rated as High-importance on the project's importance scale.

Zhengzhou

I do remember previously Zhengzhou (with a population of '12,600,574 inhabitants, of whom 10,260,667 lived in its built-up (or metro) area made of 6 urban districts plus Zhongmu county, Xinzheng and Xingyang cities now largely being conurbated'.) It's also included in the navbox at the bottom of the page.

The article itself states that, by definition, Zhengzhou is a megacity because it passes that 10mil threshold of a metro area. The problem seems to be that all the sources under-report its population by almost half; or maybe they use a different method to evaluate the population.

Should I go ahead and add it back into the List of megacities or remove it from the navbox? This is a gigantic discrepancy GSMflux91 (✉ / 🖊) 23:41, 6 February 2026 (UTC)[reply]

@GSMflux91 Zhengzhou in sources is listed as: 6,860,000 by Demographia; 6,381,637 by OECD; 5,126,112 by EU GHSL; <5 mil. by United Nations. So no, there is no reason to add Zhengzhou and I'll remove it.

As far as the cause of the disparities – some big Chinese cities moderately frequently have extremely wide boundaries that span widely through many rural regions; but they often don't have the necessary interconnected urban areas that are described in the relevant methodologies. If you want to, see some selected comparisons between largest total and urban areas here: List of largest cities by area. Respublik (talk) 22:40, 1 May 2026 (UTC)[reply]

Toronto

Toronto is a megacity... so I think I think it should be put on the list you know? What do you think? ~2026-30860-34 (talk) 14:44, 23 May 2026 (UTC)[reply]

Go look it up.

Look it up. Find a list of cities in Canada. These countries on this list have Megacities or regions with this much population: 🇧🇩🇦🇴🇦🇷🇧🇷🇨🇩🇨🇷🇨🇳🇨🇴🇬🇧🇫🇷🇩🇪🇪🇬🇯🇵🇰🇷🇮🇷🇵🇰🇵🇭🇳🇬🇵🇪🇮🇳🇮🇩🇲🇽🇻🇳🇿🇦🇺🇸🇹🇷🇷🇺 All except for... 🇨🇦 so what I am asking is for you to look at Toronto's metro Population. please...? ~2026-30860-34 (talk) 14:56, 23 May 2026 (UTC)[reply]

Toronto has 11.2 million people in it's metro. ~2026-30860-34 (talk) 14:58, 23 May 2026 (UTC)[reply]

Chengdu

Is there a reason Chengdu, which has a population of 20 million, isn’t included in the list? Most sources list it as a megacity. ZKALE (talk) 13:38, 2 June 2026 (UTC)[reply]

Refer to the above answer about Zhengzhou or even better just read the relevant methodologies of the provided sources. It is extensively explained what is and isn't counted and why. Respublik (talk) 12:38, 6 June 2026 (UTC)[reply]