List of U.S. National Historic Landmarks by state


The United States National Historic Landmark Program is designed to recognize and honor the nation's cultural and historical heritage. The program was formally inaugurated with a series of listings on October 9, 1960; as of February 16, 2017, there are 2,596 designated landmarks. A National Historic Landmark is generally a building, district, object, site, or structure, that is officially recognized by the United States government for its national historical significance. A National Historic Landmark District is a historic district that is recognized as an NHL. Its geographic area may include contributing properties that are buildings, structures, sites or objects, and it may include non-contributing properties.
The program is administered by the National Park Service, a branch of the Department of the Interior. The National Park Service determines which properties meet NHL criteria and makes nomination recommendations after an owner notification process. The Secretary of the Interior reviews nominations and, based on a set of predetermined criteria, makes a decision on NHL designation or a determination of eligibility for designation. Both public and privately owned properties can be designated as NHLs. This designation provides indirect, partial protection of the historic integrity of the properties via tax incentives, grants, monitoring of threats, and other means. Owners may object to the nomination of the property as a NHL. When this is the case the Secretary of the Interior can only designate a site as eligible for designation.
All NHLs are also included on the National Register of Historic Places, a list of some 80,000 historic properties that the National Park Service deems to be worthy of recognition. The primary difference between a NHL and a NRHP listing is that the NHLs are determined to have national significance, while other NRHP properties are deemed significant at the local or state level.

Tabular listing

Most landmark designations are in one of the 50 states. New York is the state with the most, and New York City, with 114 designations, is the city with the largest number of designations. Of the states, North Dakota has the fewest designations with seven. Three cities have enough listings to warrant lists separate from their respective states.
A small number of designations have been made outside the 50 states. Most of these appear in United States possessions. The Virgin Islands have five listings, Puerto Rico has four, and island possessions in the South Pacific have six. Five listings are found in Pacific island nations with which the U.S. has established a free association agreement, and one listing, the American Legation in Tangier, is found in the unaffiliated Kingdom of Morocco.
State or
region		Number of
landmarks		Earliest
declared		Latest
declared		Example
Alabama38
Alaska50
Arizona46
Arkansas17
California145
Colorado25
Connecticut63
Delaware14
Florida46 in Key West.
Georgia49
Hawaii33
Idaho10
Illinois87
Indiana42
Iowa26
Kansas26.
Kentucky32
Louisiana54
Maine44
Maryland74
Massachusetts
189
Michigan42
Minnesota25
Mississippi40
Missouri37
Montana28
Nebraska21
Nevada8
New Hampshire23
New Jersey58
New Mexico46
New York
274
North Carolina39
North Dakota7
Ohio76
Oklahoma22
Oregon17.
Pennsylvania
168
Rhode Island45
South Carolina76
South Dakota16
Tennessee30
Texas47
Utah14
Vermont18
Virginia121
Washington24
West Virginia16
Wisconsin43
Wyoming27
District of Columbia74
17
5
1
Duplicates
Total2,596