Ciomas
Ciomas is a town and an administrative district in Bogor Regency, West Java, Indonesia. It is located east of the provincial border with Banten Province, about 21 kilometres southwest of the regency capital Cibinong, and 3 kilometres west of the city center of Bogor, of which it is effectively an integral part even though outside the official city boundary. Ciomas District borders districts of Bogor City and other districts of Bogor Regency. It covers an area of 16.07 km2, and had a population of 149,167 at the 2010 Census and 170,486 at the 2020 Census; the official estimate as at mid 2024 was 166,220.
The administrative centre is at Pagelaran, and the district is sub-divided into the urban community of Padasuka and ten villages, all sharing the postcode of 16610.
Their areas and the estimated populations as at mid 2024, are set out below:
| Kode Wilayah | Name of Desa | Area in km2 | Population mid 2024 estimate |
| 32.01.29.2009 | Kota Baru | 2.74 | 25,184 |
| 32.01.29.2001 | Mekarjaya | 0.86 | 9,996 |
| 32.01.29.2004 | Parakan | 1.36 | 11,801 |
| 32.01.29.2005 | Ciomas | 1.07 | 14,677 |
| 32.01.29.2006 | Pagelaran | 2.03 | 22,163 |
| 32.01.29.2007 | Sukamakmur | 1.82 | 13,513 |
| 32.01.29.2008 | Ciapus | 1.16 | 15,127 |
| 32.01.29.2002 | Sukaharja | 1.73 | 8,217 |
| 32.01.29.1003 | Padasuka | 1.13 | 18,641 |
| 32.01.29.2011 | Ciomas Rahayu | 0.88 | 13,279 |
| 32.01.29.2010 | Laladon | 1.29 | 13,622 |
| 32.01.29 | Totals | 16.32 | 166,220 |
Geography
Ciomas is located to the west of Cisadane, with waterways like Cisindangbarang and Cikarti flowing through it. Its average elevation is 222 metres above sea level.History
During the Dutch colonial period, this area was named Land Tjiomas after Tjiomas River that used to flow through it. In 1886, local farmers launched the Ciomas Peasant Rebellion to revolt against landlords and the Dutch colonial government, culminating in the murder of the then Ciomas sub-district head, Haji Abdurrachim. The incident resulted in the death of about 40 people, and left 70 others injured.Following the Independence of Indonesia, Ciomas became part of Buitenzorg Kawedanan. Until 1992, Ciomas remained as a district with 40 villages and an area of 100.85 square kilometres. However, from 1992 to 2001, Ciomas experienced reductions in its area and population due to three separate changes in its administrative boundaries:
- In 1992, 15 villages in the west of the district were transferred to form the new Dramaga District ;
- In 1995, 6 villages in the east of the district were transferred to the city municipality of Bogor;
- In 2001, 8 villages in the south of the district were transferred to form the new Tamansari District.