# Tianjin

> municipality of China

**Wikidata**: [Q11736](https://www.wikidata.org/wiki/Q11736)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tianjin)  
**Source**: https://4ort.xyz/entity/tianjin

## Summary
Tianjin is a direct-administered municipality of the People's Republic of China, one of four such entities with provincial-level status that report directly to the central government. Its capital is Hexi District, and as of the 2020 census, it has a permanent population of 13,866,009 within an area of 11,920 square kilometers. Located in North China on the coast of the Bohai Sea, it serves as a major port city, national central city, and economic hub.

## Key Facts
- **Administrative Status**: Direct-administered municipality (province-level) of the People's Republic of China since 1949-10-01.
- **Area**: 11,920 square kilometers.
- **Population**: 13,866,009 permanent residents (2020 census); 13,245,000 (2016 estimate).
- **Coordinates**: 39.146666666667°N, 117.20555555556°E.
- **Capital**: Hexi District.
- **Country**: People's Republic of China (continuous affiliation since 1949-10-01).
- **ISO 3166-2 Code**: CN-TJ (since 2017-11-23); previously CN-12.
- **Timezone**: UTC+08:00.
- **Postal Code Range**: 300000–301900.
- **Local Dialing Code**: 22.
- **License Plate Codes**: 津A, B, C, D, F, G, H, J, K, L, M, N, Q, R.
- **2020 Nominal GDP**: 140,837 million renminbi.
- **Metro Lines**: Line 1, Line 2, Line 3, Line 5, Line 6, Line 9.
- **Tram System**: TEDA Modern Guided Rail Tram.
- **Highest Point**: Jiushan Peak; average elevation 5 meters above sea level.
- **Borders**: Beijing, Hebei province, Langfang, Tangshan, Cangzhou.
- **Sister Cities**: Over 20, including Philadelphia, Pyongyang, Łódź, Bangkok (since 2012-02-27), Kobe (since 1973-06-24), and İzmir (since 1990).
- **Membership**: World Tourism Cities Federation.
- **Official Website**: http://www.tj.gov.cn (Simplified Chinese).
- **Historical Names**: Tientsin, T'ien-ching, Tianjin Shi, 津, 津沽, 津門, 天津.
- **Identifiers**: GND ID 4198006-2; VIAF ID 148916663, 173081475; Geonames ID 1792943; Freebase ID /m/0df4y; BabelNet ID 00075787n; MusicBrainz area ID 215b240e-03ca-4196-8439-6643970d1bf6; OpenStreetMap relation ID 912999; UN/LOCODE CNTNJ; FIPS 10-4 CH28.

## FAQs
**What is Tianjin's administrative status and how does it govern itself?**  
Tianjin is a direct-administered municipality, meaning it holds provincial-level status and answers directly to China's central government, bypassing provincial oversight. Its executive body is the People's Government of Tianjin Municipality, the legislative body is the Tianjin Municipal People's Congress, and the Communist Party committee is led by a party chief (currently Chen Min'er as of 2022-12-08). The municipal capital is Hexi District.

**How large and populous is Tianjin?**  
Tianjin covers 11,920 square kilometers and had a permanent population of 13,866,009 according to the 2020 census, with a gender breakdown of 7,206,060 males and 7,144,949 females. The household population was 11,744,440, and the floating population was 2,121,569. An earlier 2016 estimate placed the population at 13,245,000.

**Where is Tianjin located and what are its key geographic features?**  
Tianjin is situated in North China on the western coast of the Bohai Sea at coordinates 39.1467°N, 117.2056°E. It borders Beijing and Hebei province, as well as the prefecture-level cities of Langfang, Tangshan, and Cangzhou. The municipality has a low average elevation of 5 meters above sea level, with its highest point being Jiushan Peak. It falls within the North China region and the Asian continent.

**What is Tianjin's economic significance?**  
Tianjin is a national central city and megacity with a 2020 nominal GDP of 140,837 million renminbi. It functions as a major port city and hosts the Tianjin Economic-Technological Development Area (TEDA), a key Economic and Technological Development Zone. Its economy is integral to the Jing-Jin-Ji megalopolis and the Bohai Economic Rim.

**How does Tianjin connect domestically and internationally?**  
Domestically, Tianjin shares borders with Beijing and Hebei province. Internationally, it maintains a network of over 20 sister cities, including Philadelphia (USA), Pyongyang (North Korea), Łódź (Poland), and Kobe (Japan, since 1973). It is a member of the World Tourism Cities Federation and has historical ties as a former treaty port known as Tientsin in Western sources.

**What are Tianjin's transportation and infrastructure highlights?**  
Tianjin operates an extensive metro system with six lines (1, 2, 3, 5, 6, 9) and the TEDA Modern Guided Rail Tram. Vehicle registration uses license plates starting with 津 (Jīn) followed by letters A through R (excluding E, I, O). The local dialing code is 22, and it uses the China Standard Time zone (UTC+08:00). Its port facilitates significant maritime trade.

**What historical administrative changes has Tianjin undergone?**  
From 1912 to 1928, Tianjin was part of Zhili province. It then belonged to Hopeh (Hebei) province intermittently from 1928–1930 and 1935–1937, with periods under the Republic of China, the Wang Jingwei regime (1940–1945), and the Provisional Government of the Republic of China (1937–1940). Since 1949-10-01, it has been a municipality of the People's Republic of China.

## Why It Matters
Tianjin is a critical component of China's national development strategy as one of only four direct-administered municipalities, granting it provincial-level autonomy and economic clout. It anchors the Jing-Jin-Ji megalopolis—China's northern coastal economic powerhouse—and its Binhai New Area is a flagship zone for reform and opening-up. Historically, Tianjin was a key treaty port (Tientsin) that shaped China's modern foreign relations and internal politics. Today, its port handles massive cargo volumes, its industries span advanced manufacturing to finance, and its cultural institutions contribute to national identity. The city's role in the Belt and Road Initiative and its status as a national central city underscore its ongoing influence on regional and global trade, urbanization, and technological innovation.

## Notable For
- **Provincial-Level Autonomy**: One of China's four direct-administered municipalities, with status equal to a province.
- **Massive Population**: Over 13.8 million permanent residents (2020), making it a megacity.
- **Economic Output**: 2020 GDP of 140.837 billion renminbi, driven by port logistics, manufacturing, and finance.
- **Historic Treaty Port**: Known as Tientsin in Western sources, it was a focal point of 19th–20th century foreign concessions and diplomatic incidents.
- **Extensive Metro Network**: Six operational metro lines plus the TEDA tram, serving a dense urban area.
- **Global Sister Cities**: Partnerships with more than 20 cities worldwide, from Philadelphia to Pyongyang, fostering cultural and economic exchange.
- **Low-Lying Geography**: Average elevation of just 5 meters, with significant land reclamation and flood management challenges.
- **Cultural Crossroads**: A blend of Chinese and European architectural heritage from its concession era, reflected in its diverse aliases and historical documentation.
- **Administrative Scale**: Governs 16 districts, including the central urban districts (Heping, Hedong, Hexi, Nankai, Hebei, Hongqiao) and sprawling suburban areas like Binhai New Area.
- **Digital Presence**: Featured in over 150 Wikipedia language editions and numerous global knowledge bases (VIAF, Geonames, BabelNet), highlighting its international recognition.

## Body

### History and Administrative Evolution
Tianjin's political affiliation has shifted repeatedly over the past century. From 1912 to 1928, it was part of Zhili province. Between 1928 and 1930, it belonged to Hopeh (Hebei) province, then returned to Hopeh from 1935 to 1937. During the Second Sino-Japanese War, it was under the Provisional Government of the Republic of China (1937–1940) and later the Wang Jingwei regime (1940–1945). After Japan's surrender, it reverted to the Republic of China until 1949-09-30. Since 1949-10-01, it has been a municipality of the People's Republic of China. Its historical romanization "Tientsin" appears in major encyclopedias like the 11th edition of Encyclopædia Britannica and Meyers Konversations-Lexikon.

### Geographic Profile
Tianjin is located at 39.146666666667°N latitude and 117.20555555556°E longitude in North China. The municipality spans 11,920 square kilometers, with an average elevation of 5 meters above sea level and a highest point at Jiushan Peak. It borders Beijing to the northwest, Hebei province to the west and south, and the prefecture-level cities of Langfang, Tangshan, and Cangzhou. The coastline along the Bohai Sea includes the Port of Tianjin, one of the world's largest artificial deep-water harbors. The Hai River and its tributaries flow through the urban core.

### Administrative Structure
Tianjin is subdivided into 16 county-level districts:
- **Central Urban Districts**: Heping, Hedong, Hexi, Nankai, Hebei, Hongqiao.
- **Suburban Districts**: Dongli, Xiqing, Jinnan, Beichen, Wuqing, Baodi, Ninghe, Jinghai, Jizhou.
- **New Area**: Binhai New Area (a state-level new area).
The municipal capital is Hexi District. Governance is exercised by the People's Government of Tianjin Municipality (executive) and the Tianjin Municipal People's Congress (legislative). The Communist Party committee, the de facto highest authority, has been led by Li Hongzhong (until 2022-12-08) and Chen Min'er (from 2022-12-08). Mayors have included Huang Xingguo (2007–2016), Liao Guoxun (2020–2022), and Zhang Gong (from 2022).

### Demographics
According to the Seventh National Population Census of the People's Republic of China (2020), Tianjin's permanent population was 13,866,009. This comprised 7,206,060 males (51.94%) and 7,144,949 females (48.06%). The household population (registered residents) was 11,744,440, while the floating population (migrants without local hukou) reached 2,121,569. A 2016 estimate from Demographia placed the population at 13,245,000.

### Economic Landscape
Tianjin is classified as a port city, national central city, megacity, and Economic and Technological Development Zone. Its 2020 nominal GDP was 140,837 million renminbi, sourced from the National Bureau of Statistics of China. The economy is diversified across advanced manufacturing, finance, logistics, and high-tech industries. The Tianjin Economic-Technological Development Area (TEDA), established in 1984, is a key driver of foreign investment and export-oriented production. The Binhai New Area, part of the Bohai Economic Rim, hosts the Yujiapu Financial District and has been a testing ground for economic reforms.

### Transportation Infrastructure
Tianjin's public transit includes:
- **Metro**: Six operational lines—Line 1, Line 2, Line 3, Line 5, Line 6, and Line 9 (the latter connecting to the Binhai New Area).
- **Tram**: The TEDA Modern Guided Rail Tram, a modern light rail system serving the TEDA area.
- **Road**: Vehicle registration uses license plates prefixed with 津 (Jīn) and letters A, B, C, D, F, G, H, J, K, L, M, N, Q, R.
- **Telecommunications**: Local dialing code 22.
- **Time**: China Standard Time (UTC+08:00).
The city is a major railway hub, with Tianjin Railway Station and Tianjin South Station serving high-speed and conventional lines. The Port of Tianjin is a critical node in the 21st Century Maritime Silk Road.

### International and Domestic Relations
Tianjin maintains an extensive network of sister city relationships, often termed "twinned administrative bodies," with partnerships established at various dates:
- **Americas**: Philadelphia (USA), Mar del Plata (Argentina), Dallas (USA, since 1995), Fitchburg (USA).
- **Asia**: Pyongyang (North Korea), Chiba (Japan), Bangkok (Thailand, since 2012-02-27), Incheon (South Korea), İzmir (Turkey, since 1990), Kobe (Japan, since 1973-06-24), Yokkaichi (Japan), Ulaanbaatar (Mongolia), Nampo (North Korea).
- **Europe**: Łódź (Poland), Sarajevo (Bosnia and Herzegovina), Thessaloniki (Greece), Kharkiv (Ukraine, since 1993-08-25), Kutaisi (Georgia), Rishon LeZion (Israel, since 1994-09-24), Groningen (Netherlands), Haiphong (Vietnam).
- **Africa**: Abidjan (Ivory Coast, since 1992-09-26).
- **Oceania**: City of Melbourne (Australia, since 1980).
- **Others**: Mykolaiv (Ukraine), Larnaca Municipality (Cyprus, since 2007-05-17).
Domestically, it borders Beijing and Hebei province, and is part of the North China region. It is a member of the World Tourism Cities Federation, per its official website.

### Digital and Cultural Footprint
Tianjin is known by numerous aliases across languages: Municipality of Tianjin, Tianjin Municipality, Tientsin, Tien-tsin, Tian Tzin, Tian-tzin, Himmelsfurt (German), Tianjin Shi, 津, 津沽, 津門, 天津, Tiānjīn Shì, Tiānjīn, Jīn, Тянь-цзинь (Russian), بلدية تيانجين (Arabic), تيانجن (Persian), 천진/천진시 (Korean). Its official name in Chinese is 天津市. The city has a dedicated Commons gallery titled "天津" and a Wikipedia article available in over 150 languages, from Acehnese to Zulu. Historical encyclopedias documenting Tianjin include the 11th edition of Encyclopædia Britannica (as "Tientsin"), Brockhaus and Efron Encyclopedic Dictionary, Jewish Encyclopedia of Brockhaus and Efron, The Nuttall Encyclopædia, Meyers Konversations-Lexikon (4th ed.), Armenian Soviet Encyclopedia (vol. 12), and Small Brockhaus and Efron Encyclopedic Dictionary. The official municipal website is http://www.tj.gov.cn, published in Simplified Chinese.

### Identifiers and Classifications
Tianjin is cataloged in numerous global knowledge systems:
- **Library and Authority IDs**: GND ID 4198006-2; Library of Congress Authority ID n80076205; National Library of Israel J9U ID 987007557238005171; National Library of Brazil ID 001072073; National Library of Ireland ID vtls001144235; Bibliothèque nationale de France ID 12098944b; Russian State Library (RSL) ID various via VIAF.
- **Geospatial IDs**: Geonames ID 1792943; OpenStreetMap relation ID 912999; Getty Thesaurus of Geographic Names ID 1000960; GNS Unique Feature ID -1928568.
- **Wikidata and Linked Data**: Freebase ID /m/0df4y; BabelNet ID 00075787n; MusicBrainz area ID 215b240e-03ca-4196-8439-6643970d1bf6; Data Commons ID wikidataId/Q11736; Google Knowledge Graph ID /g/11bc5rfn0f.
- **Regional Codes**: UN/LOCODE CNTNJ; ISO 3166-2 CN-TJ (current) and CN-12 (historical); FIPS 10-4 CH28; China division code 12 (statistical) and 120000 (by Ministry of Civil Affairs); World Geographical Scheme for Recording Plant Distributions CHN-TJ.
- **Classification**: Instance of direct-administered municipality, port city, national central city, big city, city, megacity, Economic and Technological Development Zone.

## References

1. [Source](https://www.dallasecodev.org/465/Sister-Friendship-Cities)
2. [Source](https://infocity.kharkiv.ua/obshchestvo/goroda-pobratimy-harkova/)
3. [Source](https://www.masham.org.il/uploads/n/1610438850.3560.pdf)
4. [Source](https://www.izmir.bel.tr/tr/KardesKentler/62)
5. [Source](https://fao.tj.gov.cn/XXFB2187/GJYC9244/YHCSTJ4276/202008/t20200824_3525190.html)
6. [Twinnings of Larnaka](http://www.larnaka.org.cy/index.php/en/page/adelfopoiiseis#.W3KYvuj-jIU)
7. National Database of Laws and Regulations
8. Virtual International Authority File
9. archINFORM
10. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
11. BnF authorities
12. MusicBrainz
13. [Source](https://cn.wtcf.org.cn/citys/3400-2.html)
14. Freebase Data Dumps. 2013
15. Czech National Authority Database
16. FIPS 10-4
17. [Source](http://www.demographia.com/db-worldua.pdf)
18. Tabulation on 2020 China Population Census by County
19. GeoNames
20. [Source](https://data.stats.gov.cn/english/easyquery.htm?cn=E0103)
21. BabelNet
22. Treccani's Enciclopedia on line
23. [archINFORM](https://www.archinform.net/service/wd_aiort.php)
24. museum-digital