List of districts of Himachal Pradesh

A district of Himachal Pradesh is an administrative geographical unit. 
Administration
Revenue department is headed by a Deputy Commissioner or District Magistrate, an officer belonging to the Indian Administrative Service. The district magistrate or the deputy commissioner is assisted by officers belonging to Himachal Administrative Service and other state services.
Law
A District Judge serves as the head of the Judiciary of the district. Courts subordinate to him include those of the Civil Judges, Senior Civil Judges, and Judicial Magistrates.

A Superintendent of Police, an officer belonging to the Indian Police Service is entrusted with the responsibility of maintaining law and order and related issues. He/she is assisted by the local police officials.
Forests
A Deputy Conservator of Forests, an officer belonging to the Indian Forest Service is responsible for managing the Forests, environment and wild-life related issues of the district. He/she is assisted by the officers of the Himachal Forest Service, other Himachal Forest officials and Himachal Wild-Life officials.
Other areas
Sectoral development is looked after by the district head of each development department such as PWD, Health, Education, Agriculture, Animal husbandry, etc. These officers belong to the various State Services.

Districts
 S. No.  District  Area in km²  Population (2011)  Headquarters 1 Bilaspur 1,167  3,82,056  Bilaspur 2 Chamba 6,528  5,15,844  Chamba 3 Hamirpur 1,118  4,54,293  Hamirpur 4 Kangra  5,739  15,07,223  Dharamsala 5 Kinnaur  6,401  84,298  Reckong Peo 6 Kullu 5,503  4,37,474  Kullu 7 Lahaul and Spiti 13,835  31,528  Keylong 8 Mandi  3,950  9,99,518  Mandi 9 Shimla 5,131  8,13,384  Shimla 10 Sirmaur  2,825  5,30,164  Nahan 11 Solan  1,936  5,76,670  Solan 12 Una  1,540  5,21,057  Una 
References