# Mamberamo Raya Regency

Mamberamo Raya Regency or Greater Mamberamo Regency is one of the regencies (kabupaten) in Papua Province, Indonesia. Tt was created on 15 March 2007 from parts of Sarmi Regency and Waropen Regency. The regency gets its name from the Mamberamo River. The largest regency by land in Papua province, It covers an area of 23,813.91 km$^2$, but had a population of only 18,365 at the 2010 Census which had almost doubled to 36,483 at the 2020 Census; the official estimate as at mid 2023 was 38,636 (comprising 20,171 males and 18,465 females). The administrative centre is at the town of Burmeso in Mamberamo Tengah (Central Mamberamo District).

## Geography

Mamberamo Raya is bordered to the south by Central Papua Province (Puncak Papua Regency and Puncak Jaya Regency) and Highland Papua Province (Tolikara Regency and Central Mamberamo Regency). Mamberamo Raya is bordered by Sarmi Regency to the east and Waropen Regency to the west. The Yapen Islands Regency in the Cenderawasih Bay lies to the northwest.
The confluence of the Tariku River and Taritatu River is found south of the Gauttier Range. The highest elevation in this regency is near the summit of the Gauttier Mountain Range, at ~2,200 m above sea level; the actual summit of the Gauttier Mountains lies in Sarmi Regency.

## Languages

Languages spoken in Mamberamo Raya Regency:
* Lakes Plain languages
* Burmeso language
* Lower Mamberamo languages
* East Geelvink Bay languages

## Subdivisions

At the 2010 Census the regency comprised eight districts (distrik), tabulated below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as at mid 2022. The table also includes the locations of the district administrative centres, the number of administrative villages (kampung) in each district, and its post code. A ninth district (Iwaso, with its district centre at Metaweja) has recently been created, but no figures for its area or 2010 population are available.
| Kode Wilayah | District (distrik) | Area in km$^2$ | Pop'n 2010 census | Pop'n 2020 census | Pop'n mid 2022 estimate | Admin centre | No. of villages | Post code |
| 91.20.06 | Waropen Atas | 2,935 | 2,876 | 5,413 | 5,447 | Barapasi | 7 | 98681 |
| 91.20.07 | Benuki | 2,636 | 1,183 | 2,425 | 2,495 | Gesa Baru | 8 | 98683 |
| 91.20.08 | Sawai $^{(a)}$ | 3,183 | 2,346 | 3,883 | 3,989 | Poiwai | 6 | 98682 |
| 91.20.05 | Mamberamo Hilir (Lower Mamberamo) | 2,078 | 1,734 | 3,330 | 3,387 | Trimuris | 7 | 98691 |
| 91.20.01 | Mamberamo Tengah $^{(b)}$ (Central Mamberamo) | 2,491 | 3,158 | 8,037 | 8,740 | Kasonaweja | 11 | 98692 |
| 91.20.09 | Iwaso | $^{(c)}$ | $^{(c)}$ | 541 | 553 | Metaweja | $^{(c)}$ | 98692 |
| 91.20.04 | Mamberamo Tengah Timur (East Central Mamberamo) | 2,429 | 1,551 | 2,940 | 2,980 | Kustra | 7 | 98693 |
| 91.20.03 | Rufaer | 3,514 | 2,546 | 4,909 | 4,992 | Kai (Kay Seta) | 6 | 98695 |
| 91.20.02 | Mamberamo Hulu (Upper Mamberamo) | 4,548 | 2,971 | 5,002 | 5,033 | Dabra | 8 | 98694 |
| | Totals | 23,814 | 18,365 | 36,483 | 37,616 | Bermeso | 60 | |
Note: (a) includes the offshore islands of Pulau Kumkum and Pulau Poiwai. (b) Mamberamo Tengah District listed here should not be confused with Mamberamo Tengah Regency (now part of the province of Highland Papua), which lies to the southeast of Mamberamo Raya Regency. (c) the area and 2010 Population of the new Iwaso District, and the number of villages in the district, are included in the figures for Mamberamo Tengah District, from which it was cut out.