West Halmahera Regency
West Halmahera Regency is a regency in North Maluku Province of Indonesia. The regency was created on 25 February 2003 from the western districts of the former North Maluku Regency, and is now bounded by North Halmahera Regency to the north and east, while to the south it borders both East Halmahera Regency and that portion of the city of Tidore on the mainland of Halmahera. It covers an area of 2,239.11 km2, and it had a population of 100,424 people at the 2010 Census and 132,349 at the 2020 Census; the official estimate as at mid 2024 was 139,764. The capital lies at Jailolo.
Administration
At the time of the 2020 Census the regency was divided into eight districts, but a ninth district - Loloda Tengah - has subsequently been created from the northern part of Loloda District. The districts are tabulated below with their areas and their populations at the 2010 Census and 2020 Census, together with the official estimates as at mid 2024. The table also includes the locations of the district administrative centres, the number of administrative villages in each district, and their postal codes.| Kode Wilayah | Name of District | English name | Area in km2 | Pop'n Census 2010 | Pop'n Census 2020 | Pop'n Estimate mid 2024 | Admin centre | No. of villages | Post codes |
| 82.01.05 | Jailolo Selatan | South Jailolo | 221.01 | 14,144 | 24,409 | 25,094 | Domato | 22 | 97751 |
| 82.01.01 | Jailolo | Jailolo | 305.60 | 27,541 | 34,757 | 37,659 | Acango | 34 | 97752 |
| 82.01.04 | Sahu | Sahu | 125.87 | 9,223 | 11,842 | 12,560 | Susupu | 19 | 97753 |
| 82.01.09 | Sahu Timur | East Sahu | 266.29 | 8,015 | 11,066 | 11,533 | Akelamo | 18 | 97758 |
| 82.01.08 | Ibu Selatan | South Ibu | 375.38 | 10,335 | 15,004 | 15,824 | Talaga | 16 | 97756 |
| 82.01.03 | Ibu | Ibu | 114.62 | 9,351 | 12,280 | 12,920 | Tongute Sungi | 17 | 97754 |
| 82.01.07 | Tabaru | North Ibu | 207.97 | 7,773 | 9,335 | 10,107 | Duono | 16 | 97757 |
| 82.01.02 | Loloda | Loloda | 359.02 | 10,626 | 13,656 | 9,219 | Kedi | 27 | 97755 |
| 82.01.10 | Loloda Tengah | Central Loloda | 177.28 | 4,685 | Barataku | 97755 | |||
| Totals | 2,239.11 | 100,424 | 132,349 | 139,764 | Jailolo | 169 |
Notes: including 37 offshore islands. including 80 offshore islands in Loloda and Loloda Tengah Districts together.
The largest islands are Nusa Kahatola and Sidua . included in the figure for Loloda District, of which it was formerly a part.