How to Find Out Your Nationality: Documents and Foreign Claims

To find out your nationality, start with the documents that record how you acquired it: a certified birth certificate if you were born in the United States, a Consular Report of Birth Abroad if you were born overseas to U.S. citizen parents, a Certificate of Naturalization if you became a citizen later, or the equivalent civil records from another country if your claim runs through a foreign parent or grandparent. Nationality is a legal bond, not a feeling or a heritage percentage, so the answer lives in paperwork issued by a government. What follows walks through which documents apply to which situations, what to do when the paperwork is missing, and when a foreign country may also consider you one of its nationals.

Nationality Is Not the Same as Citizenship

People use the two words interchangeably, but they carry different legal weight. Every U.S. citizen is a U.S. national, but not every U.S. national is a citizen. People born in American Samoa and Swains Island, for example, are U.S. nationals who owe permanent allegiance to the United States but are not U.S. citizens by birth.¹ The Immigration and Nationality Act treats those two places as “outlying possessions,” and people born there acquire nationality without citizenship.²

Citizenship carries the full set of civil and political rights inside a country, including voting in federal elections. Nationality in the broader legal sense means you belong to the country and owe it allegiance, but you may not hold every right a citizen holds. For most readers the distinction is academic, because U.S. citizens are also U.S. nationals and the same documents establish both. The distinction becomes practical if you were born in one of the outlying possessions or are asking whether a foreign country considers you its national through descent.

Documents That Prove U.S. Nationality

Which document you rely on depends on how you acquired your status.

If You Already Have a U.S. Passport

A valid, undamaged U.S. passport is primary evidence of citizenship and nationality.³ If you hold one, you have your answer. A U.S. passport card also proves citizenship and identity, though it is only accepted for land and sea travel to Canada, Mexico, Bermuda, and certain Caribbean countries.⁴

If You Were Born in the United States

A certified birth certificate from a state or local vital records office is typically all you need.⁵ “Certified” is the operative word. A hospital souvenir copy or a photocopy will not do. The certified version carries an official seal and comes from the government, not the hospital. Fees vary by state and generally run from about $10 to $53.

If You Were Born Abroad to U.S. Citizen Parents

A Consular Report of Birth Abroad (CRBA) documents that you were a U.S. citizen at birth. It is not a birth certificate, but it serves as proof of citizenship.⁶ Parents apply through a U.S. embassy or consulate while the child is under 18. If your parents never obtained one, you may still be able to prove citizenship by applying for a passport with evidence of your parents’ citizenship and physical presence in the United States, or by applying for a Certificate of Citizenship.

If You Naturalized

USCIS issues a Certificate of Naturalization (Form N-550) to people who became U.S. citizens through the naturalization process. If the original is lost, destroyed, or your legal name has changed, you can request a replacement (Form N-570) by filing Form N-565 with USCIS.⁷⁸ Check the current USCIS fee schedule before submitting.

If You Acquired or Derived Citizenship Through a Parent

If you automatically acquired or derived U.S. citizenship through your parents, you can apply for a Certificate of Citizenship using Form N-600. This route covers people born abroad to U.S. citizen parents who never obtained a CRBA, as well as people who derived citizenship after birth because a parent naturalized while they were a minor.⁹ The application asks for evidence of your parents’ citizenship and your relationship to them. A replacement (Form N-561) is available if the original is lost or your name has changed.⁷ Form N-600 can be filed online or by mail. USCIS no longer accepts personal checks or money orders for paper filings.¹⁰

What to Do When You Don’t Have the Documents

Records get lost in fires, floods, and moves, and older records sometimes never existed in a form you can pull off a shelf. When primary documents are unavailable, USCIS accepts secondary evidence to help establish identity and nationality.

Acceptable secondary evidence includes baptismal certificates, school records, hospital records, and immunization records. You can also submit sworn affidavits from people with personal knowledge of your birth, such as a relative who was present. Each affidavit needs to include the person’s full name, address, date and place of birth, relationship to you, and a detailed explanation of how they know what they are attesting to.¹¹

If USCIS holds records about your immigration history but you have lost your copies, you can request them through a Freedom of Information Act request. Form G-639 lets you request your own immigration file, though USCIS suggests using its online FOIA portal for faster processing. Asking for specific documents rather than the entire file speeds things up.¹² Two caveats matter here. Naturalization records from before September 27, 1906, are held by the clerk of court that handled the case, not USCIS. Manifest arrival records from before December 1982 are at the National Archives.

If You Were Born in American Samoa or Swains Island

People born in American Samoa or Swains Island, and people born abroad to non-citizen national parents who meet certain physical presence requirements, fall into the non-citizen national category.¹³ The Immigration and Nationality Act defines a “national of the United States” as all U.S. citizens plus those who owe permanent allegiance to the United States but are not citizens.¹⁴

Non-citizen nationals can live and work in the United States without immigration restrictions and are eligible for federal government jobs in the competitive service on the same footing as citizens.¹⁵ They cannot vote in federal elections and may face other limitations that vary by state. If you want to certify your status, you can apply for a U.S. passport that notes your non-citizen national status using Form DS-11 at any passport agency or acceptance facility.¹⁴ You can also naturalize as a U.S. citizen through USCIS.

Looking Into a Foreign Nationality Claim

Many people asking about their nationality suspect they may hold citizenship in another country through a parent or grandparent. Whether that is true depends entirely on the other country’s laws. Many countries grant citizenship by descent, but the rules vary dramatically. Some recognize descent across several generations, others only through one parent. Some impose registration deadlines or language requirements. The starting point is always the consulate or embassy of the country in question, which can tell you what documentation is required and whether you qualify.

The United States does not force you to choose. Federal law does not require U.S. citizens to give up a foreign nationality, and naturalizing in another country does not automatically cost you your U.S. citizenship.¹⁶ Dual nationals owe allegiance to both countries and must follow both countries’ laws.

Family Records Are the Real Starting Point

Before contacting a foreign consulate, gather what you already have. Birth certificates, marriage licenses, and family documents often contain names, dates, and birthplaces that point to a specific country. Census records can show where ancestors lived and what country of origin they reported. Ship manifests and naturalization petitions show arrival dates, previous addresses, and sometimes declarations of intent to become a citizen. Online genealogical databases, local historical societies, and state archives hold large collections of these records. Talking to older relatives first is worth the time. They may remember birthplaces, know where family documents are stored, or recall specific names and dates that make searching much easier.

Why DNA Tests Don’t Answer the Question

Consumer DNA tests can reveal ethnic and geographic connections in your family tree, but they cannot prove nationality. Nationality is a legal relationship with a country, established through birth, descent, or naturalization. A DNA result showing 40% Italian heritage does not make you an Italian national. The regional categories these tests use are approximations based on reference populations, and the boundaries shift as companies update their databases. A DNA result can be a useful clue that sends you searching through Italian civil records or Irish parish registers, but the nationality claim itself will depend on that country’s citizenship laws and your ability to document the family connection through official records.

Authenticating U.S. Documents for a Foreign Government

If a foreign government requires authenticated U.S. documents to process a nationality claim, you may need an apostille. For countries that belong to the 1961 Hague Convention, an apostille from the U.S. State Department’s Office of Authentications verifies the signature and authority behind the document. For non-member countries, you need a separate authentication certificate instead.¹⁷ You submit Form DS-4194 with the original document and the required fee. Processing takes about five weeks by mail, or two to three weeks for documents dropped off in person at the State Department office. State-issued documents such as birth certificates may first need an apostille from the issuing state’s secretary of state before the federal authentication is added, depending on what the receiving country requires.

When to Bring in a Professional

Most people can sort out their nationality with a few forms and some patience. Some situations genuinely benefit from outside help. Immigration attorneys are worth consulting if you are establishing citizenship through a complicated chain of descent, if a prior USCIS application was denied, or if criminal history or past immigration violations complicate your case. Professional genealogists can help when your paper trail crosses international borders or runs cold. They know how to access foreign archives, read historical documents in other languages, and connect records across different countries’ systems. If you suspect you qualify for a foreign nationality by descent, a genealogist can often assemble the documentary chain a consulate requires more efficiently than you can on your own.

1
U.S. Citizenship and Immigration Services. USCIS Policy Manual – Becoming a U.S. Citizen
2
U.S. Department of State Foreign Affairs Manual. 8 FAM 308.2 – Acquisition by Birth in American Samoa and Swains Island
3
U.S. Department of State – Travel.State.Gov. Get Citizenship Evidence for a U.S. Passport
4
U.S. Department of State – Travel.State.Gov. Get a Passport Card
5
USAGov. Get or Replace a Certificate of Citizenship or a Certificate of Naturalization
6
U.S. Department of State – Travel.State.Gov. Birth of U.S. Citizens and Non-Citizen Nationals Abroad
7
U.S. Citizenship and Immigration Services. Commonly Used Immigration Documents
8
U.S. Citizenship and Immigration Services. Form N-565, Application for Replacement Naturalization/Citizenship Document
9
U.S. Citizenship and Immigration Services. USCIS Policy Manual – Certificate of Citizenship
10
U.S. Citizenship and Immigration Services. N-600, Application for Certificate of Citizenship
11
U.S. Citizenship and Immigration Services. USCIS Policy Manual – Documentation and Evidence
12
U.S. Citizenship and Immigration Services. Form G-639, Freedom of Information/Privacy Act Request
13
U.S. Department of State Foreign Affairs Manual. 8 FAM 308.9 – Acquisition by Birth Abroad to Non-Citizen Nationals
14
U.S. Department of State – Travel.State.Gov. Certificates of Non Citizen Nationality
15
U.S. Office of Personnel Management. Employment FAQ – Do I Have to Be a US Citizen to Apply
16
U.S. Department of State – Travel.State.Gov. Dual Nationality
17
U.S. Department of State – Travel.State.Gov. Office of Authentications