|Secretary of the Interior of the United States|
Seal of the U.S. Department of the Interior
Flag of the U.S. Secretary of the Interior
|United States Department of the Interior|
|Reports to||The President|
with Senate advice and consent
|Term length||No fixed term|
|Constituting instrument||43 U.S.C. § 1451|
|Formation||March 3, 1849|
|First holder||Thomas Ewing|
|Deputy||Deputy Secretary of the Interior|
|Salary||Executive Schedule, level 1|
The United States Secretary of the Interior is the head of the United States Department of the Interior. The Department of the Interior in the United States is responsible for the management and conservation of most federal land and natural resources; it oversees such agencies as the Bureau of Land Management, the United States Geological Survey, and the National Park Service. The Secretary also serves on and appoints the private citizens on the National Park Foundation board. The Secretary is a member of the President's Cabinet. The U.S. Department of the Interior should not be confused with the Ministries of the Interior as used in many other countries. Ministries of the Interior in these other countries correspond primarily to the Department of Homeland Security in the U.S. Cabinet and secondarily to the Department of Justice.
Because the policies and activities of the Department of the Interior and many of its agencies have a substantial impact in the Western United States,  the Secretary of the Interior has typically come from a western state; only two of the individuals to hold the office since 1949 have not been from a state lying west of the Mississippi River. The current Interior Secretary is Ryan Zinke, who was nominated by President Donald Trump on December 13, 2016  and approved by the Senate on March 1, 2017.
The line of succession for the Secretary of Interior is as follows: 
- Deputy Secretary of the Interior
- Solicitor of the Interior
- Assistant Secretary for Policy, Management and Budget
- Assistant Secretary for Land and Minerals Management
- Assistant Secretary for Water and Science
- Assistant Secretary for Fish, Wildlife and Parks
- Assistant Secretary for Indian Affairs
- Director, Security, Safety, and Law Enforcement, Bureau of Reclamation
- Central Region Director, US Geological Survey
- Intermountain Regional Director, National Park Service
- Region 6 (Mountain-Prairie Region) Director, US Fish and Wildlife Service
- Colorado State Director, Bureau of Land Management
- Regional Solicitor, Rocky Mountain Region
acting Secretary of the InteriorDenotes
As of December 2018, eight former Secretaries of the Interior are alive (with all Secretaries that have served since 1985 still living), the oldest being Manuel Lujan, Jr. (served 1989–1993, born 1928). The most recent to die was Cecil D. Andrus (served 1977–1981, born 1931), on August 23, 2017. The most recently serving Secretary to die was William P. Clark Jr. (served 1983–1985, born 1931), on August 10, 2013.
|Name||Term of office||Date of birth (and age)|
|James G. Watt||1981–1983||January 31, 1938|
|Donald P. Hodel||1985–1989||May 23, 1935|
|Manuel Lujan, Jr.||1989–1993||May 12, 1928|
|Bruce E. Babbitt||1993–2001||June 27, 1938|
|Gale A. Norton||2001–2006||March 11, 1954|
|Dirk Kempthorne||2006–2009||October 29, 1951|
|Ken Salazar||2009–2013||March 2, 1955|
|Sally Jewell||2013–2017||February 21, 1956|
- Salazar, Vilsack: The West's New Land Lords Archived December 20, 2008, at the Wayback Machine.
- Vogel, Kenneth; Severns, Maggie (December 13, 2016). "Trump selects Zinke as interior secretary". Politico. Washington, DC. Retrieved December 13, 2016.
- "Chapter 3: SECRETARIAL SUCCESSION (2) - Laserfiche WebLink". elips.doi.gov. Retrieved October 30, 2016.
- "About Secretary Jewell". U.S. Department of the Interior. Archived from the original on June 8, 2013. Retrieved May 23, 2013.
- Official website
- List of Secretaries of the Interior (worldstatesmen.org)
- The Department of Everything Else: Highlights of Interior History (1989)
|Current U.S. order of precedence (ceremonial)|
as Acting Attorney General
Order of Precedence of the United States
as Secretary of the Interior
as Secretary of Agriculture
|Current U.S. presidential line of succession|
Secretary of Defense
|8th in line||Succeeded by|
Secretary of Agriculture