聯合國出版物《世界城鎮化展望》（World Urbanization Prospects）將市域人口定義為「居住在城市行政邊界內或由單一權力機構直接由城市管轄的人口。」（the population living within the administrative boundaries of a city or controlled directly from the city by a single authority）。該書還繼續說到：「行政邊界所定義的市域包括很大比例的在城市工作或學習的人口居住的郊區。」（city proper as defined by administrative boundaries may not include suburban areas where an important proportion of the population working or studying in the city lives.）該定義並準確地描述城市的城區或大都會區。
^Mumbai City consists of two distinct regions: Mumbai City district (Island City) and Mumbai Suburban district (Western Suburban and Eastern Suburban), grouped into 24 wards, under the administration of Brihanmumbai Municipal Corporation (BMC). The remaining area belongs to Defence, Mumbai Port Trust, Atomic Energy Commission and Borivali National Park, which are out of the jurisdiction of the BMC.
^The sub-provincial city of Wuhan has direct jurisdiction over 13 districts (eight urban/five rural). The city proper (urban) based on the districts of Jiang'an, Jianghan, Qiaokou, Hanyang, Wuchang and Qingshan considered "core districts" + Inner suburbs (districts): Hongshan, Dongxihu.
^Administratively, the Municipality of São Paulo is divided into 31 subprefectures, each in turn divided into 96 districts. Locally, districts may contain one or more neighborhoods (bairros). The city of São Paulo recognizes ten geographical areas used to reference locations in the city.
^The sub-provincial city of Xi'an has direct jurisdiction over 9 districts (區 qu) and 4 counties (縣 xian). The city proper based on the districts of Xīnchéng, Bēilín and Liánhú considered "core districts" + Inner suburbs (districts): Bàqiáo, Wèiyāng and Yàntǎ.
^The province of Kinshasa is divided into twenty-four districts, administered by the Metropolitan Municipality of Kinshasa. But the districts (communes) of Maluku and Nsele (N'Sele) are rural and not part of the city proper. The city proper (urban area) of Kinshasa is generally considered to be formed by twenty-two "communes".
^According to the Constitution of Democratic Republic of the Congo, the province of Kinshasa covers 9965.21 km2. Maluku and N'Sele (total area 8847.59 km2) are entirely rural, with a very very low density.
^The Capital District of Bogotá is divided into twenty districts, administered by the Metropolitan Municipality of Bogotá.
^Límites. Bogota Government Corporation. [2018-08-27]. （原始內容存檔於2013-10-31）.
^The district of Sumapaz is completely rural (no city services) and is not part of the city proper. The area was an important pilgrimage arheoligic site for the Muisca indigenous peoples in pre-Columbian times and for visiting the Sumapaz National Park. The district of Sumapaz represents 0.1% of the population (48% "area") of Bogotá Municipality.
^In April 2011, Prime Minister Essam Sharaf abolished the Helwan Governorate and reincorporated its territory into the Cairo Governorate. The total area of the governorate is 3085.1 square kilometers, the city area is 453 square kilometers, but the Egyptian government considered the Cairo Governorate is that a whole city and all statistics relate to the "governorate".
^The province of Baghdad is divided into nine district, administered by the Metropolitan Municipality of Baghdad. The districts are distributed into 89 Neighborhood Councils.
^There are many disputes about Baghdad city (urban) area. The city of Baghdad has the special status of provincial. The demographic information reported to the city proper are non-existent or are the estimates, projections inconclusive. The Metropolitan Municipality of Baghdad is a city "federal district – province". Is similar to the case of Cairo Governorate.
^Chennai city is governed by the Chennai Corporation, dividing into three regions – fifteen districts: North (Tiruvottiyur, Manali, Madhavaram, Tondiarpet and Royapuram), South (Valasaravakkam, Alandur, Adyar, Perungudi and Sholinganallur) and Central (Thiru-Vi-Ka Nagar, Ambattur, Anna Nagar, Teynampet and Kodambakkam), which covers 200 wards. Of the total land area, reserved forests cover 2.71 km2 and is concentrated in and around the Guindy National Park region, one of the few national parks in the world located within a city.
^Riyadh is divided into 15 branch municipalities, in addition to the Diplomatic Quarter. Each branch municipality in turn contains several districts, amounting to over 130 in total, though some districts are divided between more than one branch municipality. The branch municipalities are Al-Shemaysi, Irqah, Al-Ma'athar, Al-Olayya, Al-Aziziyya, Al-Malaz, Al-Selayy, Nemar, Al-Neseem, Al-Shifa, Al-'Urayja, Al-Bat'ha, Al-Ha'ir, Al-Rawdha, and Al-Shimal ("the North").
^Arriyadh Development Authority (Investment_Arriyadh_2013)
^Bangkok is subdivided into 50 districts (khet เขต, also sometimes wrongly called amphoe อำเภอ as in the other provinces, derived from Pali khetta, cognate to Sanskrit kṣetra), which are further subdivided into 169 khwaeng แขวง, roughly equivalent to tambon ตำบล in the other provinces.
^The province of Santiago is divided into thirty-two districts, administered by the Metropolitan Municipality of Santiago. But the district of Lo Barnechea is rural (mountains) and is not part of the city proper. The city proper (urban area) of Santiago is generally considered to be formed by thirty-one districts (Province of Santiago), the district of Puente Alto (Province of Cordillera), and the district of San Bernardo (Province of Maipo).
^Yangon is administered by the Yangon City Development Committee (YCDC). The city proper is divided into four districts: Western District, Eastern District, Southern District and Northern District. The districts combined have a total of 33 townships.
^The city of Alexandria has an area of approximately 400 square kilometres. Egyptian officials provides information at governorate level. In the case of "city proper" provides information at intervals of many years. It is impossible to assess the population (official) reported in the city proper area.
^The province of Ankara is divided into twenty five districts, administered by the Metropolitan Municipality of Ankara. The city proper (urban area) of Ankara is generally considered to be formed by eight districts (Sincan, Yenimahalle, Etimesgut, Keçiören, Pursaklar, Altındağ, Mamak, Çankaya). Here, Gölbaşı district is excluded, because it is rural.
^Yenimahalle district, whose area is not given by citypopulation.de, covers 274 km2
^All districts that are listed as being in Greater Cairo and are contiguous; namely Ad-Duqī, Al-Ahrām; Al-'Ajūzah; Al-Badrashayn; Al-Ḥawāmidiyah; Al-Jīzah; Al-Jīzah; Al-'Umrāniyah; Al-Warrāq; Awsīm; Būlāq al-Dakrūr; Imbābah; Kirdāsah.
^The prefecture-level city of Hefei administers 9 county-level divisions, including 4 districts, 1 County-city and 4 counties. The city proper based on the districts of Luyang, Yaohai, Shushan and Baohe considered "core districts".