The total area of Kapuas Regency is 17,070.39 square km (11.1% of the area of Central Kalimantan Province), delineated into ebbtide and non-ebbtide areas.^[4] It adjoins Gunung Mas Regency, the Java Sea, Barito Selatan Regency and Kalimantan Selatan Province (Barito Kuala Regency), and Pulang Pisau Regency, to the north, south, east and west, respectively.

The north is marked by hills and mountains up to 500 metres above sea level, while the south is coastal and marshy, ebb-tidal and vulnerable to flooding. Rivers in Kapuas Regency are the Kapuas and Kapuas Murung, 600 and 66.38 km in length, respectively. There are four canals: Anjir Serapat (28 km in length;) and Anjir Tamban (25 km), each connecting Kuala Kapuas with Banjarmasin, running through Kalimantan Tengah (for 13–14 km) and Kalimantan Selatan (12–14 km); the Anjir Kalampan (14.5 km), connecting Mandomai, the capital of Kapuas Barat district, with Pulang Pisau Regency; and the Anjir Basarang (24 km), connecting Kuala Kapuas with Pulang Pisau.

In 2009 there were 204 villages (190 rural desa and 14 urban kelurahan). These were categorised as 44 traditional (swadaya), 61 transitional (swakarya) and 59 development (swasembada) villages, 6 isolated villages/wards (2.94 percent) and 52 poor villages/wards (25.49 percent). In 2009, there were 190 desa heads, 160 desa secretaries, 950 desa staff, 14 kelurahan heads and 14 kelurahan secretaries. In 2023 there were 231 villages, comprising 214 rural desa and 17 urban kelurahan.

Kapuas Regency consists of seventeen districts (kecamatan), tabulated below with their areas and population totals from the 2010 Census^[2] and from the 2020 Census,^[3] together with the official estimates as of mid 2023.^[1] The 2020 Census figures are rounded to the nearest 100 people. The table also includes the locations of the district administrative centres, the number of administrative villages (totaling 214 rural desa and 17 urban kelurahan) in each district, and their postal codes.

Notes: (a) includes the offshore island of Pulau Roko. (b) comprising 8 kelurahan (Murung Keramat, Panamas, Selat Barat, Selat Dalam, Selat Hilir, Selat Hulu, Selat Tengah and Selat Utara) and 2 desa.
(c) including one kelurahan (Pulau Kupang). (d) comprising 5 kelurahan (Barimba, Dahirang, Hampatung, Mambulau Sei Pasah) and 3 desa.
(e) includes 2 kelurahan (Palingkau Baru and Palingkau Lama). (f) including one kelurahan (Mandomai).

Kapuas Kuala, the seat of the regency, has a tropical rainforest climate (Af) with heavy rainfall in all months except July and August.

The 2010 census recorded 329,646 people, including 167,937 males (50.98%) and 161,503 females (49.02%). The 2020 Census total rose to 410,446, and the population was 423,210 in mid 2022.^[6] The 2020 population density was 27.36 people/km2, ranging from a high of 624.66 in Selat to only 5.07 people/km2 in Mandau Talawang.

Religion as of 2018:^[7]

• Muslim 77.71%
• Protestant 12.15%
• Hindu 9.35%
• Roman Catholic 0.77%
• Buddhist 0.01%
• Confucian 0.00%

Education is a development sector given priority by government (1945 Constitution mandate, as stated in article no 31 point 2), with an ultimate aim of improving the quality of human resources in Indonesia. There were 147 kindergartens in the regency, with 390 teachers and 4,181 students in 2009. In 2010, there were 390 Primary schools (including private schools), with 2,736 teachers and 40,714 students, yielding student:teacher ratio of about 14.88. There were 86 Junior High schools (state and private), with 1,085 teachers, 9,667 students and 465 classrooms; 25 Senior High schools (state and private), with 636 teachers and 5,886 students.

The region had only 38 doctors in 2010, resulting in a service ratio of 8,669.

• Phone Directory in Kapuas Regency
• INFORMASI KAPUAS
• KUALA KAPUAS
• Official Website of Local Government
• General Hospital of Kapuas Regency
• Indonesian Medical Association Branch Kapuas
• Indonesia Redcross Branch Kapuas

3°00′00″S 114°22′48″E / 3.00000°S 114.38000°E / -3.00000; 114.38000