US Birth Tourism Sounds Huge. The Numbers Say Otherwise

US birth tourism has been argued over in Washington for a decade, and on 6 August it finally got an executive order of its own. President Trump signed a directive telling federal agencies to stop recognising citizenship for a child when neither parent is American and the family paid into a commercial arrangement to get the mother into the country to give birth. Agencies have 30 days to comply.

The timing is the strange part. Five weeks earlier, on 30 June, the Supreme Court ruled 6-3 against the administration's far broader attempt to end automatic citizenship for children of undocumented parents and temporary visitors. Chief Justice John Roberts wrote for the majority. Justices Thomas, Alito and Gorsuch dissented separately. The White House lost that case, then returned with a much narrower instrument.

And here is the figure that keeps getting lost in the noise. The most-cited estimate of the practice comes from the Center for Immigration Studies, which counted 20,000 to 26,000 possible cases in 2020. That same year, roughly 3.61 million babies were born in the United States. Even taking the highest number from a group that campaigns for tighter immigration, that is well under 1% of American births.

What birthright citizenship actually means

The rule sits in the 14th Amendment, ratified in 1868 to undo the Dred Scott decision. Anyone born on American soil and subject to American jurisdiction is a citizen, whatever their parents' paperwork says. The Supreme Court settled the point in 1898 in the case of Wong Kim Ark, a man born in San Francisco to Chinese immigrant parents. The recognised exceptions are narrow: children of accredited foreign diplomats, children of an occupying force, and births aboard foreign sovereign vessels.

Citizenship, then and now, was the right to have rights—to freely participate in our political community.

That line, from Roberts's June opinion, is why the ruling matters beyond immigration policy. Justice Kavanaugh, writing separately, suggested Congress could legislate exceptions if it wanted to. So far it has not.

How big is US birth tourism, really?

Nobody counts it directly. There is no box on an American birth certificate for "came here on purpose". Every number in circulation is an estimate built from survey data, hospital records or court filings, and they disagree with each other by a factor of three.

Where the 26,000 figure comes from

The Center for Immigration Studies produced its 20,000-26,000 range from 2020 census-linked data, and its demographer Steven Camarota has said it remains the most recent workable estimate because the underlying data changed afterwards. Extended across a decade, the group puts the total above 200,000. A separate figure of 33,000 births a year to women arriving on tourist visas also circulates.

What the birth records show

Federal health statistics tell a smaller story. National Center for Health Statistics data recorded 9,576 births to foreign residents in 2024. Michelle Mittelstadt of the Migration Policy Institute has pointed out that this almost certainly undercounts, while stressing that against 3.6 million annual births the whole phenomenon remains a tiny fraction.

The island that fell from 581 to 47

The clearest evidence that enforcement works comes from the Northern Mariana Islands, a US territory in the Pacific popular with Chinese visitors. Births there to foreign tourists peaked at 581 in 2018. By 2025 the figure was 47. Visa restrictions and prosecutions, not constitutional change, did that.

What the 6 August order actually changes

Executive Order 14418 is a rulebook for federal clerks rather than a rewrite of the constitution. It tells the State Department, Justice Department, Homeland Security and the Social Security Administration to withhold recognition in four categories, including where a commercial transaction brought the mother to the country to deliver. Expect litigation: the same courts that blocked the 2025 order will be asked whether "commercial transaction" is a legitimate carve-out or the old policy in a smaller box.

Why Britain settled this argument in 1983

British readers may find the whole row unfamiliar, because the UK abolished unconditional birthright citizenship more than forty years ago. Under the British Nationality Act 1981, which took effect on 1 January 1983, a baby born here is British only if a parent is a British citizen or settled. Ireland changed its rules by referendum in 2004. The US and Canada are now the outliers among large wealthy democracies.

If you're flying to the US while pregnant

Being pregnant is not a bar to travel, and nothing signed this month changes that. But since 24 January 2020, American consular officers have been able to refuse a B-1/B-2 visitor visa if they judge the main purpose of the trip is to give birth. Most British travellers use ESTA under the Visa Waiver Programme rather than a B visa, though border officers still assess intent on arrival.

The practical advice is dull and effective: carry proof of your return booking, your travel insurance and your reason for going. If you are anywhere near your due date, check your airline's cut-off, which is typically around 36 weeks. And watch early September, when the 30-day compliance deadline lands and the first legal challenges to the new order are likely to be filed. Steer well clear of any agency advertising a package that includes American citizenship for tens of thousands of pounds — California operations charged roughly £30,000 to £60,000 at today's rates, and the first federal prosecution in 2019 named 16 fugitive defendants.