
Kebumen Regency is a regency in the southern part of Central Java, Indonesia. Its regency seat is Kebumen. The regency borders Banjarnegara Regency to the north, Wonosobo Regency and Purworejo Regency to the east, the Indian Ocean to the south, and Cilacap Regency and Banyumas Regency to the west.
Kebumen covers an area of 1,281.12 km² and had a population of 1,453,417 in mid 2025. The regency is known for its southern coastline, karst landscapes, caves, geological heritage, and the Karangsambung–Karangbolong Geopark, which forms part of the Kebumen UNESCO Global Geopark.
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Masyarakat Kabupaten Kebumen umumnya menggunakan bahasa Indonesia dan bahasa Jawa dalam kehidupan sehari-hari dan Mayoritas adalah Bahasa Jawa Banyumasan dan terdapat minoritas signifikan yang menuturkan Bahasa Jawa Kedu. Jika dilihat dari logat bahasanya, bahasa Jawa yang dituturkan oleh masyarakat Kabupaten Kebumen terbagi dalam beberapa logat/dialek bahasa. Sebelah timur aliran Sungai Kedungbener berbahasa dengan ciri khas logat Bagelen dan Bahasa Jawa Kedu karena dekat dengan perbatasan Purworejo dengan didominasi vokal 'o' serupa dengan vokal Bahasa Jawa Surakarta, sebagian lagi yang berdekatan dengan penutur banyumasan menggunakan dialek kedu dengan kombinasi vokal 'o' dengan 'a', Masyarakat yang menuturkan dialek Kedu meliputi Kecamatan Ambal, Kecamatan Mirit, Kecamatan Kutowinangun, Kecamatan Poncowarno, Kecamatan Padureso, Kecamatan Prembun dan Kecamatan Bonorowo.
Sementara di sebelah barat aliran sungai Luk Ulo didominasi vokal a dan k sigeg, atau dikenal dengan Dialek Banyumasan atau Ngapak. Sebagian besar masyarakat Kabupaten Kebumen menuturkan bahasa jawa dengan logat Banyumasan, yakni mencakup Kecamatan Rowokele, Kecamatan Ayah, Kecamatan Buayan, Kecamatan Sempor, Kecamatan Gombong, Kecamatan Kuwarasan, Kecamatan Puring, Kecamatan Petanahan, Kecamatan Adimulyo, Kecamatan Karanganyar, Kecamatan Karanggayam, Kecamatan Pejagoan, Kecamatan Sruweng, dan Kecamatan Klirong. Sedangkan di antara aliran sungai Luk Ulo dan aliran Sungai Kedungbener Dialeknya merupakan peralihan ada yang menggunakan dialek banyumasan ada juga yang menggunakan dialek campuran kedu dan banyumasan, masyarakat yang menuturkan logat ini meliputi Kecamatan Kebumen, Kecamatan Alian, Kecamatan Karangsambung, Kecamatan Sadang dan Kecamatan Buluspesantren. Namun jika diperhatikan masyarakat di wilayah Kecamatan Alian, Kecamatan Karangsambung, Kecamatan Sadang lebih fasih berbicara dengan logat Wonosoboan (sub dialek Banyumasan) dengan memanjangkan fonem akhir.
Large brick remains at the former Wonoyudo site in Mirit District.
The area now forming Kebumen Regency has archaeological and cultural traces that predate the modern regency. Megalithic and ancient Hindu artefacts have been recorded in several places, including lingga-yoni remains in Ayah and Sumberadi, Ganesha statues in Kejawang and Kebumen, and the Talangpati site in Pujotirto, Karangsambung. A study by Hindarto and Ansori describes Talangpati as a transitional megalithic-Hindu site in Kalipuru hamlet, Pujotirto village, Karangsambung District, while noting that its archaeological status still requires further study.
In local historical tradition, the area was formerly known as Panjer. The Kebumen Regency government links the early history of Kebumen with the Mataram Sultanate and the role of Ki Bodronolo in supplying logistics for Sultan Agung's campaign against Batavia in 1629. Through Regional Regulation No. 3 of 2018, Kebumen Regency set 21 August 1629 as its official anniversary.
The name Kebumen is traditionally associated with the term kabumian, meaning the residence of Kyai Bumi or Prince Bumidirja. According to local history recorded by the regency government, Prince Bumidirja withdrew from Mataram during the reign of Sunan Amangkurat I, and the area of his residence became known as Kabumian, later Kebumen.
During the colonial period, the area underwent several administrative changes. After the end of the Java War in 1830, Bagelen came under Dutch colonial administration, and Kebumen later became one of the regencies in the Bagelen Residency. The local tourism office states that the name "Kebumen" or "Keboemen" began to be used for the western coastal part of Bagelen after the Java War, replacing Panjer in colonial administration.
In 1901, the Bagelen Residency was abolished and its territory was incorporated into the Kedu Residency. At that time, Kebumen also became the name of an afdeeling covering Kebumen Regency and Karanganyar Regency, with its centre in Kebumen district.
Before 1936, Karanganyar was a separate regency in what is now western Kebumen. A study by Teguh Hindarto describes Karanganyar as an independent regency from 1832 to 1936. Its abolition was associated with the impact of the 1930s economic depression on the Dutch East Indies bureaucracy.
According to the Karanganyar District government, several regencies were abolished on 31 December 1935, including Karanganyar, which was merged into Kebumen Regency. From 1 January 1936, Karanganyar ceased to exist as a separate regency and later became a district within Kebumen Regency.
After Indonesian independence, Kebumen's status as a regency within Central Java was confirmed by Law No. 13 of 1950 concerning the establishment of regencies in Central Java Province.
Kebumen Regency lies in southern Central Java between 7°27′–7°50′ South latitude and 109°33′–109°50′ East longitude. It is bounded by Banjarnegara Regency to the north, Purworejo and Wonosobo regencies to the east, the Indian Ocean to the south, and Cilacap and Banyumas regencies to the west.
The regency has an area of 1,281.12 km². Its elevation ranges from 9 metres to 198 metres above sea level, with an average regency elevation of 29 metres. Administratively, Kebumen consists of 26 districts. The largest district by area is Karanggayam, covering 109.29 km² or 8.53% of the regency, while the smallest is Gombong, covering 19.48 km² or 1.52%.
Southern Kebumen consists mainly of lowland and coastal areas facing the Indian Ocean, while the northern part is dominated by hills and mountains associated with the South Serayu range. In 2024, village-potential data recorded 30 coastal villages or urban villages and 430 non-coastal villages or urban villages in the regency.
Kebumen contains important geological areas extending from Karangsambung in the north to the Karangbolong–South Gombong karst region in the south. Karangsambung was designated a Geological Nature Reserve by Minister of Energy and Mineral Resources Decree No. 2817 KMEM/2006. The Gombong Karst Landscape Area was designated by Ministerial Decree No. 3043 KMEM402014.
The Karangsambung–Karangbolong area was later developed as a geopark. The Kebumen Regency tourism office records 41 geosites, 2 biosites, and 14 cultural sites spread across 118 villages in 12 districts. UNESCO lists Kebumen as a UNESCO Global Geopark and describes Karangsambung as a natural laboratory containing continental-edge and oceanic rocks that record plate-tectonic processes.
In 2024, Kebumen had 40,139.55 hectares of wet-rice fields. Of these, 25,794.20 hectares were irrigated rice fields, 14,306.35 hectares were rain-fed rice fields, 38.00 hectares were tidal-swamp fields, and 1.00 hectare was lowland-swamp field.
Non-rice agricultural land covered 52,837.08 hectares. The largest uses were dry fields or gardens, state forest, community forest, and ponds. Non-agricultural land covered 35,134.87 hectares.
BPS climate data from the Sempor station show variable rainfall in 2024. The highest monthly rainfall was recorded in January at 742 mm, while the lowest was recorded in August at 3 mm.