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Cilegon
City
City of Cilegon
Kota Cilegon
Name transcription(s)
 • Sundanese ᮎᮤᮜᮨᮌᮧᮔ᮪
View of Cilegon from the Java Sea
View of Cilegon from the Java Sea
Flag of Cilegon
Flag
Coat of arms of Cilegon
Coat of arms
Nickname(s): 
Steel City
Motto(s): 
Akur Sedulur Jujur Adil Makmur
(Get along with fellows; honest, fair, and prosperous)
Location within Banten
Location within Banten
Cilegon is located in Java
Cilegon
Cilegon
Location in Java
Cilegon is located in Indonesia
Cilegon
Cilegon
Location in Indonesia
Country  Indonesia
Region Java
Province  Banten
Administrative City 1987
Municipality 27 April 1999
City 4 September 1999
Area
 • Total 162.51 km2 (62.75 sq mi)
Population
 (mid 2023 estimate)
 • Total 450,507
 • Density 2,772.18/km2 (7,179.91/sq mi)
Time zone UTC+7 (Indonesia Western Time)
Postcodes
42400
Area code (+62) 254

Cilegon is an important city in Banten province, Indonesia. It is located right on the coast of the island of Java. The city covers an area of about 162.51 square kilometers.

Cilegon is often called the "Steel City." This is because it's a huge producer of steel in Southeast Asia. Factories like Krakatau Steel make millions of tons of steel every year. This steel is used for many things, both in Indonesia and other countries.

Besides steel, Cilegon has other important places. These include the Merak Harbour, which is a busy port. There are also many industrial zones and power plants. These places are very important for Indonesia's economy.

Photos of students from H.I.S. in Tjilegon (Cilegon), West-Java.

Where is Cilegon Located?

Cilegon is on the northwest coast of Java island. It sits at the mouth of the Cilegon River, which flows into Ciwandan Bay. This bay is part of the Sunda Strait.

The city is almost completely surrounded by Serang Regency. It borders Serang Regency to the east and south. To the north and west, it meets the Sunda Strait.

How Many People Live in Cilegon?

Cilegon has a growing population. In 2010, about 374,464 people lived there. By 2020, this number grew to 434,896. As of mid-2023, the city's population was estimated to be around 450,507 people.

The city is divided into eight main areas called districts (kecamatan). Each district has several smaller areas called villages (kelurahan).

What is Cilegon's Weather Like?

Cilegon has a hot and humid climate. It's like a tropical rainforest or tropical monsoon climate. This means it's warm all year round.

The city has clear wet and dry seasons. The wet season lasts from October to May, with lots of rain. January is usually the wettest month. The dry season is shorter, from June to September. August is the driest month.

Climate data for Cilegon
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °C (°F) 30.6
(87.1)
31.1
(88.0)
31.6
(88.9)
32.2
(90.0)
32.5
(90.5)
32.4
(90.3)
32.4
(90.3)
32.4
(90.3)
32.8
(91.0)
33.0
(91.4)
32.6
(90.7)
31.8
(89.2)
32.1
(89.8)
Daily mean °C (°F) 26.6
(79.9)
26.9
(80.4)
27.2
(81.0)
27.5
(81.5)
27.7
(81.9)
27.4
(81.3)
27.1
(80.8)
27.0
(80.6)
27.4
(81.3)
27.8
(82.0)
27.7
(81.9)
27.4
(81.3)
27.3
(81.2)
Mean daily minimum °C (°F) 22.7
(72.9)
22.8
(73.0)
22.8
(73.0)
22.9
(73.2)
23.0
(73.4)
22.4
(72.3)
21.9
(71.4)
21.7
(71.1)
22.1
(71.8)
22.6
(72.7)
22.9
(73.2)
23.0
(73.4)
22.6
(72.6)
Average rainfall mm (inches) 319
(12.6)
269
(10.6)
209
(8.2)
157
(6.2)
129
(5.1)
94
(3.7)
80
(3.1)
71
(2.8)
73
(2.9)
116
(4.6)
169
(6.7)
240
(9.4)
1,926
(75.9)
Source: Climate-Data.org

Media and Communication

Cilegon has its own local media to keep people informed and entertained.

Newspaper

  • Radar Banten (part of Jawa Pos)

Radio

  • 91.8 Top FM Cilegon
  • 95.3 FM Banten Radio
  • 96.9 FM Sam Radio
  • 102.0 Cilegon Mandiri FM (Local Government Broadcast)
  • 105.2 Cilegon Pass FM
  • 107.7 Gema Suara Tercinta
  • 107.9 Flash Radio FM

Education

Cilegon has several schools for students.

  • SMP Negeri 1
  • SMPIT Raudhatul Jannah Cilegon
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