Currently 418 national parks in United States. (as of November 2018)
Abraham Lincoln Birthplace National Historical Park – Kentucky
Acadia National Park – Maine
Adams National Historical Park – Massachusetts
African Burial Ground National Monument – New York
Agate Fossil Beds National Monument – Nebraska
Alagnak Wild River – Alaska
Alibates Flint Quarries National Monument – Texas
Allegheny Portage Railroad National Historic Site – Pennsylvania
Amistad National Recreation Area – Texas
Andersonville National Historic Site – Georgia
Andrew Johnson National Historic Site – Tennessee
Aniakchak National Monument – Alaska
Aniakchak National Preserve – Alaska
Antietam National Battlefield – Maryland
Apostle Islands National Lakeshore – Wisconsin
Appalachian National Scenic Trail – Maine to Georgia
Appomattox Court House National Historical Park – Virginia
Arches National Park – Utah
Arkansas Post National Memorial – Arkansas
Arlington House, The Robert E. Lee Memorial – Virginia
Assateague Island National Seashore – Maryland, Virginia
Aztec Ruins National Monument – New Mexico
Badlands National Park – South Dakota
Bandelier National Monument – New Mexico
Belmont-Paul Women’s Equality National Monument – Washington DC
Bent’s Old Fort National Historic Site – Colorado
Bering Land Bridge National Preserve – Alaska
Big Bend National Park – Texas
Big Cypress National Preserve – Florida
Big Hole National Battlefield – Montana
Big South Fork National River and Recreation Area – Tennessee, Kentucky
Big Thicket National Preserve – Texas
Bighorn Canyon National Recreation Area Montana
Birmingham Civil Rights National Monument – Alabama
Biscayne National Park – Florida
Black Canyon of the Gunnison National Park – Colorado
Blackstone River Valley National Historical Park – Rhode Island, Massachusetts
Blue Ridge Parkway – North Carolina, Virginia
Bluestone National Scenic River – West Virginia
Booker T. Washington National Monument – Virginia
Boston African American National Historic Site – Massachusetts
Boston Harbor Islands National Recreation Area Massachusetts
Boston National Historical Park – Massachusetts
Brices Cross Roads National Battlefield Site – Mississippi
Brown vs. Board of Education National Historic Site – Kansas
Bryce Canyon National Park – Utah
Buck Island Reef National Monument – Virgin Islands
Buffalo National River – Arkansas
C & O Canal National Historical Park – Maryland, Washington DC
Cabrillo National Monument – California
Camp Nelson National Monument – Kentucky
Canaveral National Seashore – Florida
Cane River Creole National Historical Park – Louisiana
Canyon De Chelly National Monument – Arizona
Canyonlands National Park – Utah
Cape Cod National Seashore – Massachusetts
Cape Hatteras National Seashore – North Carolina
Cape Krusenstern National Monument – Alaska
Cape Lookout National Seashore – North Carolina
Capitol Reef National Park – Utah
Capulin Volcano National Monument – New Mexico
Carl Sandburg Home National Historic Site – North Carolina
Carlsbad Caverns National Park – New Mexico
Carter G. Woodson Home National Historic Site – Washington DC
Casa Grande Ruins National Monument – Arizona
Castillo de San Marcos National Monument – Florida
Castle Clinton National Monument – New York
Castle Mountains National Monument – California
Catoctin Mountain Park – Maryland
Cedar Breaks National Monument – Utah
Cedar Creek and Belle Grove National Historical Park – Virginia
Chaco Culture National Historical Park – New Mexico
Chamizal National Memorial – Texas
Channel Islands National Park – California
Charles Pinckney National Historic Site – South Carolina
Charles Young Buffalo Soldiers National Monument – Ohio
Chattahoochee River National Recreation Area – Georgia
Chickamauga and Chattanooga National Military Park – Georgia, Tennessee
Chickasaw National Recreation Area – Oklahoma
Chiricahua National Monument – Arizona
Christiansted National Historic Site – Virgin Islands
City of Rocks National Reserve – Idaho
Clara Barton National Historic Site – Maryland
Colonial National Historical Park – Virginia
Colorado National Monument – Colorado
Congaree National Park – South – Carolina
Constitution Gardens – Washington DC
Coronado National Memorial – Arizona
Cowpens National Battlefield – South Carolina
Crater Lake National Park – Oregon
Craters of the Moon National Monument – Idaho
Craters of the Moon National Preserve – Idaho
Cumberland Gap National Historical Park – Kentucky, Tennessee, Virginia
Cumberland Island National Seashore – Georgia
Curecanti National Recreation Area – Colorado
Cuyahoga Valley National Park – Ohio
César E. Chávez National Monument – California
Dayton Aviation Heritage National Historical Park – Ohio
De Soto National Memorial – Florida
Death Valley National Park – California, Nevada
Delaware Water Gap National Recreation Area – Pennsylvania
Denali National Park – Alaska
Denali National Preserve – Alaska
Devils Postpile National Monument – California
Devils Tower National Monument – Wyoming
Dinosaur National Monument – Colorado, Utah
Dry Tortugas National Park – Florida
Ebey’s Landing National Historical Reserve – Washington
Edgar Allan Poe National Historic Site – Pennsylvania
Effigy Mounds National Monument – Iowa
Eisenhower National Historic Site – Pennsylvania
El Malpais National Monument – New Mexico
El Morro National Monument – New Mexico
Eleanor Roosevelt National Historic Site – New York
Eugene O’Neill National Historic Site – California
Everglades National Park – Florida
Federal Hall National Memorial – New York
Fire Island National Seashore – New York
First Ladies National Historic Site – Ohio
First State National Historical Park – Delaware, Pennsylvania
Flight 93 National Memorial – Pennsylvania
Florissant Fossil Beds National Monument – Colorado
Ford’s Theatre National Historic Site – Washington DC
Fort Bowie National Historic Site – Arizona
Fort Caroline National Memorial – Florida
Fort Davis National Historic Site – Texas
Fort Donelson National Battlefield Tennessee, Kentucky
Fort Frederica National Monument – Georgia
Fort Laramie National Historic Site – Wyoming
Fort Larned National Historic Site – Kansas
Fort Matanzas National Monument – Florida
Fort McHenry National Monument and Historic Shrine – Maryland
Fort Monroe National Monument – Virginia
Fort Necessity National Battlefield – Pennsylvania
Fort Point National Historic Site – California
Fort Pulaski National Monument – Georgia
Fort Raleigh National Historic Site – North Carolina
Fort Scott National Historic Site – Kansas
Fort Smith National Historic Site – Arkansas
Fort Stanwix National Monument – New York
Fort Sumter National Monument – South Carolina
Fort Union National Monument – New Mexico
Fort Union Trading Post National Historic Site – North Dakota, Montana
Fort Vancouver National Historic Site – Washington, Oregon
Fort Washington Park – Maryland
Fossil Butte National Monument – Wyoming
Franklin D. Roosevelt Memorial – Washington DC
Frederick Douglass National Historic Site – Washington DC
Frederick Law Olmsted National Historic Site – Massachusetts
Fredericksburg and Spotsylvania National Military Park – Virginia
Freedom Riders National Monument – Alabama
Friendship Hill National Historic Site – Pennsylvania
Gates of the Arctic National Park – Alaska
Gates of the Arctic National Preserve – Alaska
Gateway National Recreation Area – New York, New Jersey
Gauley River National Recreation Area – West Virginia
General Grant National Memorial – New York
George Rogers Clark National Historical Park – Indiana
George Washington Birthplace National Monument – Virginia
George Washington Carver National Monument – Missouri
George Washington Memorial Parkway – Virginia, Maryland, Washington DC
Gettysburg National Military Park – Pennsylvania
Gila Cliff Dwellings National Monument – New Mexico
Glacier Bay National Park – Alaska
Glacier Bay National Preserve Alaska
Glacier National Park – Montana
Glen Canyon National Recreation Area – Arizona, Utah
Golden Gate National Recreation Area – California
Golden Spike National Historic Site – Utah
Governors Island National Monument – New York
Grand Canyon National Park – Arizona
Grand Portage National Monument – Minnesota
Grand Teton National Park – Wyoming
Grant-Kohrs Ranch National Historic Site – Montana
Great Basin National Park – Nevada
Great Egg Harbor Scenic and Recreational River – New Jersey
Great Sand Dunes National Park – Colorado
Great Sand Dunes National Preserve – Colorado
Great Smoky Mountains National Park – Tennessee, North Carolina
Greenbelt Park – Maryland
Guadalupe Mountains National Park – Texas
Guilford Courthouse National Military Park – North Carolina
Gulf Islands National Seashore – Florida, Mississippi
Hagerman Fossil Beds National Monument – Idaho
Haleakala National Park – Hawaii
Hamilton Grange National Memorial – New York
Hampton National Historic Site – Maryland
Harpers Ferry National Historical Park – West Virginia
Harriet Tubman National Historical Park – New York
Harriet Tubman Underground Railroad National Historical Park – Maryland
Harry S Truman National Historic Site – Missouri
Hawaii Volcanoes National Park – Hawaii
Herbert Hoover National Historic Site – Iowa
Hohokam Pima National Monument – Arizona
Home of Franklin D. Roosevelt National Historic Site – New York
Homestead National Monument of America – Nebraska
Honouliuli National Monument – Hawaii
Hopewell Culture National Historical Park – Ohio
Hopewell Furnace National Historic Site – Pennsylvania
Horseshoe Bend National Military Park – Alabama
Hot Springs National Park – Arkansas
Hovenweep National Monument – Colorado, Utah
Hubbell Trading Post National Historic Site – Arizona
Independence National Historical Park – Pennsylvania
Indiana Dunes National Lakeshore – Indiana
Isle Royale National Park – Michigan
James A. Garfield National Historic Site – Ohio
Jean Lafitte National Historical Park and Preserve – Louisiana
Gateway Arch National Park (Jefferson National Expansion Memorial) – Missouri
Jewel Cave National Monument – South Dakota
Jimmy Carter National Historic Site – Georgia
John D. Rockefeller Memorial Parkway – Wyoming
John Day Fossil Beds National Monument – Oregon
John F. Kennedy National Historic Site – Massachusetts
John Muir National Historic Site – California
Johnstown Flood National Memorial – Pennsylvania
Joshua Tree National Park – California
Kalaupapa National Historical Park – Hawaii
Kaloko-Honokohau National Historical Park – Hawaii
Katahdin Woods and Waters National Monument – Maine
Katmai National Park – Alaska
Katmai National Preserve – Alaska
Kenai Fjords National Park – Alaska
Kennesaw Mountain National Battlefield Park – Georgia
Keweenaw National Historical Park – Michigan
Kings Canyon National Park – California
Kings Mountain National Military Park – South Carolina
Klondike Gold Rush National Historical Park – Alaska, Washington
Knife River Indian Villages National Historic Site – North Dakota
Kobuk Valley National Park – Alaska
Korean War Veterans Memorial – Washington DC
Lake Chelan National Recreation Area – Washington
Lake Clark National Park – Alaska
Lake Clark National Preserve – Alaska
Lake Mead National Recreation Area – Nevada, Arizona
Lake Meredith National Recreation Area – Texas
Lake Roosevelt National Recreation Area – Washington
Lassen Volcanic National Park – California
Lava Beds National Monument – California
Lewis and Clark National Historical Park – Oregon, Washington
Lincoln Boyhood National Memorial – Indiana
Lincoln Home National Historic Site – Illinois
Lincoln Memorial – Washington DC
Little Bighorn Battlefield National Monument – Montana
Little River Canyon National Preserve – Alabama
Little Rock Central High School National Historic Site – Arkansas
Longfellow House–Washington’s Headquarters National Historic Site – Massachusetts
Lowell National Historical Park – Massachusetts
Lyndon B. Johnson National Historical Park – Texas
Lyndon Baines Johnson Memorial Grove on the Potomac – Washington DC
Maggie L. Walker National Historic Site – Virginia
Mammoth Cave National Park – Kentucky
Manassas National Battlefield Park – Virginia
Manhattan Project National Historical Park – New Mexico, Tennessee, Washington
Manzanar National Historic Site – California
Marsh-Billings-Rockefeller National Historical Park – Vermont
Martin Luther King, Jr. Memorial – Washington DC
Martin Luther King, Jr. National Historic Site – Georgia
Martin Van Buren National Historic Site – New York
Mary McLeod Bethune Council House National Historic Site – Washington DC
Mesa Verde National Park – Colorado
Middle Delaware National Scenic River – Pennsylvania
Minidoka National Historic Site – Idaho
Minute Man National Historical Park – Massachusetts
Minuteman Missile National Historic Site – South Dakota
Mississippi National River and Recreation Area – Minnesota
Missouri National Recreational River – Nebraska, South Dakota
Mojave National Preserve – California
Monocacy National Battlefield – Maryland
Montezuma Castle National Monument – Arizona
Moores Creek National Battlefield – North Carolina
Morristown National Historical Park – New Jersey
Mount Rainier National Park – Washington
Mount Rushmore National Memorial South Dakota
Muir Woods National Monument – California
Natchez National Historical Park – Mississippi
Natchez Trace National Scenic Trail – Mississippi, Alabama, Tennessee
Natchez Trace Parkway – Mississippi, Alabama, Tennessee
National Capital Parks – Washington DC
National Mall – Washington DC
National Park of American Samoa – American Samoa
Natural Bridges National Monument – Utah
Navajo National Monument – Arizona
New Bedford Whaling National Historical Park – Massachusetts
New Orleans Jazz National Historical Park – Louisiana
New River Gorge National River – West Virginia
Nez Perce National Historical Park – Idaho
Nicodemus National Historic Site – Kansas
Ninety Six National Historic Site – South Carolina
Niobrara National Scenic River – Nebraska
Noatak National Preserve – Alaska
North Cascades National Park – Washington
Obed Wild and Scenic River – Tennessee
Ocmulgee National Monument – Georgia
Olympic National Park – Washington
Oregon Caves National Monument and Preserve – Oregon
Organ Pipe Cactus National Monument – Arizona
Ozark National Scenic Riverways – Missouri
Padre Island National Seashore – Texas
Palo Alto Battlefield National Historical Park – Texas
Paterson Great Falls National Historical Park – New Jersey
Pea Ridge National Military Park – Arkansas
Pecos National Historical Park – New Mexico
Pennsylvania Avenue National Historic Site – Washington DC
Perry’s Victory and International Peace Memorial – Ohio
Petersburg National Battlefield Park – Virginia
Petrified Forest National Park – Arizona
Petroglyph National Monument – New Mexico
Pictured Rocks National Lakeshore – Michigan
Pinnacles National Park – California
Pipe Spring National Monument – Arizona
Pipestone National Monument – Minnesota
Piscataway Park – Maryland
Point Reyes National Seashore California
Port Chicago Naval Magazine National Memorial – California
Potomac Heritage National Scenic Trail – Maryland, Pennsylvania
Poverty Point National Monument – Louisiana
President William Jefferson Clinton Birthplace Home National Historic Site – Arkansas
Prince William Forest Park – Virginia
Pu’uhonua O Honaunau National Historical Park – Hawaii
Pu’ukohola Heiau National Historic Site – Hawaii
Pullman National Monument – Illinois
Rainbow Bridge National Monument – Utah
Reconstruction Era National Monument – South Carolina
Redwood National Park – California
Richmond National Battlefield Park – Virginia
Rio Grande Wild and Scenic River – Texas
River Raisin National Battlefield Park – Michigan
Rock Creek Park – Washington DC
Rocky Mountain National Park – Colorado
Roger Williams National Memorial – Rhode Island
Rosie the Riveter/World War II Home Front National Historical Park – California
Ross Lake National Recreation Area – Washington
Russell Cave National Monument – Alabama
Sagamore Hill National Historic Site – New York
Saguaro National Park – Arizona
Saint Croix Island International Historic Site – Maine
Saint Croix National Scenic Riverway Wisconsin, Minnesota
Saint Paul’s Church National Historic Site – New York
Saint-Gaudens National Historic Site – New Hampshire
Salem Maritime National Historic Site – Massachusetts
Salinas Pueblo Missions National Monument – New Mexico
Salt River Bay National Historical Park – and Ecological Preserve Virgin Islands
San Antonio Missions National Historical Park – Texas
San Francisco Maritime National Historical Park – California
San Juan Island National Historical Park – Washington
San Juan National Historic Site – Puerto Rico
Sand Creek Massacre National Historic Site – Colorado
Santa Monica Mountains National Recreation Area – California
Saratoga National Historical Park – New York
Saugus Iron Works National Historic Site – Massachusetts
Scotts Bluff National Monument – Nebraska
Sequoia National Park – California
Shenandoah National Park – Virginia
Shiloh National Military Park – Tennessee, Mississippi
Sitka National Historical Park – Alaska
Sleeping Bear Dunes National Lakeshore – Michigan
Springfield Armory National Historic Site – Massachusetts
Statue of Liberty National Monument – New York, New Jersey
Steamtown National Historic Site – Pennsylvania
Stones River National Battlefield – Tennessee
Stonewall National Monument – New York
Sunset Crater Volcano National Monument – Arizona
Tallgrass Prairie National Preserve Kansas
Thaddeus Kosciuszko National Memorial – Pennsylvania
Theodore Roosevelt Birthplace National Historic Site – New York
Theodore Roosevelt Inaugural National Historic Site – New York
Theodore Roosevelt Island – Washington DC
Theodore Roosevelt National Park – North Dakota
Thomas Edison National Historical Park – New Jersey
Thomas Jefferson Memorial – Washington DC
Thomas Stone National Historic Site – Maryland
Timpanogos Cave National Monument – Utah
Timucuan Ecological and Historic Preserve – Florida
Tonto National Monument – Arizona
Tule Springs Fossil Beds National Monument – Nevada
Tumacacori National Historical Park – Arizona
Tupelo National Battlefield – Mississippi
Tuskegee Airmen National Historic Site – Alabama
Tuskegee Institute National Historic Site – Alabama
Tuzigoot National Monument – Arizona
Ulysses S. Grant National Historic Site – Missouri
Upper Delaware Scenic and Recreational River – Pennsylvania
Valles Caldera National Preserve – New Mexico
Valley Forge National Historical Park – Pennsylvania
Vanderbilt Mansion National Historic Site – New York
Vicksburg National Military Park – Mississippi, Louisiana
Vietnam Veterans Memorial – Washington DC
Virgin Islands Coral Reef National Monument – Virgin Islands
Virgin Islands National Park – Virgin Islands
Voyageurs National Park – Minnesota
Waco Mammoth National Monument – Texas
Walnut Canyon National Monument – Arizona
War in the Pacific National Historical Park – Guam
Washington Monument – Washington DC
Washita Battlefield National Historic Site – Oklahoma
Weir Farm National Historic Site – Connecticut
Whiskeytown-Shasta-Trinity National Recreation Area – California
White House – Washington DC
White Sands National Monument – New Mexico
Whitman Mission National Historic Site – Washington
William Howard Taft National Historic Site – Ohio
Wilson’s Creek National Battlefield – Missouri
Wind Cave National Park – South Dakota
Wolf Trap National Park for the Performing Arts – Virginia
Women’s Rights National Historical Park – New York
World War I Memorial – Washington DC
World War II Memorial – Washington DC
World War II Valor in the Pacific National Monument – Alaska, California, Hawaii
Wrangell-St. Elias National Park – Alaska
Wrangell-St. Elias National Preserve – Alaska
Wright Brothers National Memorial – North Carolina
Wupatki National Monument – Arizona
Yellowstone National Park – Wyoming, Idaho, Montana
Yosemite National Park – California
Yucca House National Monument – Colorado
Yukon-Charley Rivers National Preserve – Alaska
Zion National Park – Utah