The National Archives at New York City

Naturalization Records Available at the National Archives and Records Administration - New York Office

See also our Naturalization Records page. More...

See also our page listing the Federal courts in New York, New Jersey, and Puerto Rico and the areas they cover.



Our holdings and indexes


New York

New York Federal Courts and Military Naturalizations

U.S. District Court for the Southern District of New York

Declarations of Intention, 1842-1959; 1968-1991
Overseas Military Petitions - World War II and Korean War
Petitions for Name Change (Oath Ceremonies), 1991-1996
Petitions for Naturalization, 1824-1991
Registration of Aliens, 1815-1831
Repatriation Applications, 1937-1970
Transfer Petitions for Naturalization, 1953-1991

Index to Declarations of Intention, 1917-1950 (online index available, subscription required)
Index to Overseas Military Petitions for World War II and the Korean War (free online index available)
Index to Petitions for Naturalization, 1824-1991 (free online index available, 1907-1959 only, and online index available, subscription required, 1824-1989 only)

U.S. Circuit Court for the Southern District of New York

Declarations of Intention, 1845-1911
Petitions for Naturalization, 1846-1876; 1906-1911

Index to Petitions for Naturalization, 1846-1876, 1906-1911 (free online index available, and online index available, subscription required)

U.S. District Court for the Eastern District of New York

Declaration of Intention, 1865-1979
Military Petitions-World War I, World War II, Korean War
Petitions for Naturalization, 1865-1991
Transfer Petitions for Naturalization, 1952-1992

Index to Declaration of Intention, 1909-1925; 1934-1958
Index to Military Petitions for World War II and Korean War (free online index available)
Index to Petitions for Naturalization - 1865-1991 (free online index available, 1865-1957 only, and online index available, subscription required, 1865-1957 only)

U.S. District Court for the Western District of New York

Declarations of Intention, 1906-1963
Military Petitions-World War I, World War II and Korean War
Petitions for Naturalization, 1903-1966
Repatriations, 1937-1970

Index to Petitions for Naturalization and Declarations of Intention, 1903-1966 (online index available, subscription required, petitions only, 1903-1966)

U.S. District Court for the Northern District of New York

Petitions for Naturalization, 1821-1855; 1906
Index to Petitions for Naturalization - 1821-1855, 1906 (free online index available, 1821-1855 only)

Other Courts - New York

Bureau of Citizenship and Naturalization Services (BCIS), Petitions for Naturalization filed Federal, State and Local Courts located in New York City, 1792-1906

Clinton County (NY) Clerk's Office

Essex County (NY) Clerk's Office

New Jersey

U.S. District Court for the District of New Jersey - Camden Office

Declarations of Intention, 1933-1968
Petitions for Naturalization, 1932-1981

Index to Declarations of Intention, 1933-1968
Index to Petitions for Naturalization, 1932-1991

U.S. District Court for the District of New Jersey - Newark Office

Declarations of Intention, 1914-1982
Military Petitions--World War I, World War II, and Korean War
Petitions for Naturalization, 1914-1982
Repatriations, 1921-1970
Transfer Petitions for Naturalization, 1953-1980

Index to Declarations of Intention, 1914-1982
Index to Military Petitions--World War II and Korean War
Index to Petitions for Naturalization, 1914-1982

U.S. District Court for the District of New Jersey - Trenton Office

Declarations of Intention, 1906-1913; 1930-1983
Military Petitions-Camp Dix-World War I and World War II
Petitions for Naturalization, 1838-1988
Repatriations, 1918-1967
Transfer Petitions for Naturalization, 1953-1988

Index to Petitions for Naturalization, 1838-1988 (free online index available, 1838-1967 only, contains certificate numbers for Declarations of Intent, Petitions, Repatriations, Transferred Petitions, and Military WWII naturalizations)
Index to Military Petitions-Camp Dix-World War I and World War II (free online index available)

Puerto Rico

U.S. District Court for the District of Puerto Rico - San Juan Office

Declarations of Intention, 1897-1906; 1917-1969
Declarations of Intention-City of Ponce, 1917-1939
Declarations of Intention-City of San Juan, 1911
Military Petitions, 1944-1954
Persons retaining Spanish Nationality, 1917-1918
Petitions to be Declared American Citizens, 1917-1941
Petitions for Naturalization, 1897-1972
Repatriations, 1942-1973
Transfer Petitions for Naturalizations, 1953-1971

Index to Petitions for Naturalization, 1917-1929


Online indexes

You can use the following sites to search indexes to some of our naturalization records. If you find a record and want to obtain a copy of it, please follow the procedures outlined in our naturalization records page.

Free sites

The following online indexes are available at the web sites of the German Genealogy Group and the Italian Genealogical Group. These sites are free and can be accessed from anywhere. They also provide indexes to New York area naturalizations held by other repositories and information on how to obtain copies.

  • U.S. District Court for the Eastern District of New York
    • Petitions for Naturalization, 1865-1957
    • Military Petitions for World War II and the Korean War
  • U.S. District Court for the Northern District of New York
    • Petitions for Naturalization, 1821-1855
  • U.S. Circuit Court for the Southern District of New York
    • Petitions for Naturalization, 1846-1876 and 1906-1911
  • U.S. District Court for the Southern District of New York
    • Petitions for Naturalization, 1907-1959
    • Overseas Military Petitions for World War II and the Korean War
  • U.S. District Court for the District of New Jersey - Trenton Office
    • Naturalization records, 1838-1967 (index contains certificate numbers for Declarations of Intent, Petitions, Repatriations, Transferred Petitions, and Military WWII naturalizations)
    • Military Petitions-Camp Dix-World War I
  • Clinton County, NY, 1851-1906
  • Essex County, NY, 1799-1906

Subscription required

Ancestry and Fold3 (formerly Footnote) have online indexes to some of our naturalization records. They also have indexes to naturalizations held by other National Archives regional offices and many other repositories, so please read the descriptive information for the databases you search on these sites to determine where any records you find are located.

These sites require a subscription, but they are available for free public use at any National Archives research facility. They may also be available at your local library.

Ancestry has put the following indexes online. The names of the databases are in italics, and they are located in Ancestry's Immigration Collection:

  • New York Petitions for Naturalization contains National Archives microfilm publication M1674: Soundex Index to Petitions for Naturalizations Filed in Federal, State, and Local Courts in New York City, 1792-1906 plus additional naturalizations filed in the U.S. District Court for the Southern District of New York up to 1989
  • U.S. Naturalization Records Indexes, 1794-1995 includes National Archives microfilm publications M1676: Alphabetical Index to Petitions for Naturalization of the U.S. District Court [and Circuit Court] for the Southern District of New York, 1824-1941; and M1164: Index to the Naturalization Petitions of the United States District Court for the Eastern District of New York, 1865-1957
  • New York Southern District Court, Korean War Military Naturalization Index, 1950-1955
  • New York Southern District, World War II Military Naturalization Index, 1941-1946

Fold3 (formerly Footnote) has put several of our microfilm series pertaining to naturalization records online. See the next section on Records and indexes on microfilm for details.


Records and indexes on microfilm

The following microfilm publications are available for free public use at our facility. Copies on our self-service machines are 50 cents per page. To read more about these microfilm series, including information on where you can view them (in addition to our facility in New York) and how you can order copies (of entire rolls, not individual pages), please see the National Archives online Microfilm Catalog.

Naturalization records on microfilm/online

The two microfilm publications listed below can be accessed online through Fold3. Please note that the work to put these online may not be complete. These microfilm publications are available in their entirety for research at our facility.

  • M1879: Eastern District of New York Petitions for Naturalization, 1865-1937
  • M1972: Southern District of New York Petitions for Naturalization, 1897-1944

Indexes on microfilm/online

The six publications listed below pertaining to indexes only (M1164, M1674, M1675, M1676, M1677, and M1952) can be accessed online through Fold3 (formerly Footnote). They are also available for research at our facility.

  • M1164: Index to the Naturalization Petitions of the United States District Court for the Eastern District of New York, 1865-1957
  • M1674: Soundex Index to Petitions for Naturalizations Filed in Federal, State, and Local Courts in New York City, 1792-1906
  • M1675: Alphabetical Index to Declarations of Intention of the U.S. District Court for the Southern District of New York, 1917-1950
  • M1676: Alphabetical Index to Petitions for Naturalization of the U.S. District Court [and Circuit Court] for the Southern District of New York, 1824-1941
  • M1677: Alphabetical Index to Petitions for Naturalizations of the U.S. District Court for the Western District of New York, 1903-1966
  • M1952: Index cards for locating naturalization records for soldiers serving in the US Armed Forces during World War I, specifically the year 1918 (please read the descriptive information for this microfilm publication, which is available through Fold3 or the National Archives online Microfilm Catalog, to determine where a specific record you may find in this index is located; they are not all New York/New Jersey or Federal court naturalizations)

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