The area of the regency is 3,503.75 km2 and its population at the 2010 Census was 2,171,281;[3] the 2020 Census produced a total of 2,477,560[4] and the official estimate published by the regency government as at mid 2023 was 2,535,002 (comprising 1,298,946 males and 1,236,056 females).

As such, a portion of the northern valley (consisting of Cugenang, Pacet, Sukaresmi and Cipanas Districts in the far northwest of the regency) was briefly included in a definition of Greater Jakarta called Jabodetabekjur (jur for Cianjur).

Cianjur Regency is divided into thirty-two districts (kecamatan), listed below with their areas and their populations at the 2010 and 2020 Censuses,[3][4] together with the official estimates as at mid 2023.

Of the 360 villages, 354 are rural desa, while 6 are urban kelurahan (Bojongherang, Muka, Pamoyanan, Sawah Gede, Sayang and Solokpandan), which are all part of Cianjur (town) District (kecamatan).

A terracing structure, although local people mention it as a pyramid, lies on Mount Padang, 31 kilometer from Cianjur through Warung Kondang.