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Form I-94: How It Works and Which Countries Visit the US Most

Learn how the I-94 documents your legal entry into the United States and see which countries top the visitor rankings according to the latest official data.

Written by

Victoria Harper

Editor-in-Chief

Updated on April 28, 2026
8 min read
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Formulário I-94: como funciona e quem mais visita os EUA

Crossing the United States border does not end with a passport stamp. The record that actually determines how long you may remain in the country is Form I-94, issued by U.S. Customs and Border Protection (CBP) at each admission. Understanding this document, knowing how to check it, and respecting its deadlines is what separates a smooth trip from an immigration problem that can block visas for years.

The I-94 is also the statistical foundation the U.S. government uses to measure international tourism, plan public policy, and evaluate each traveler’s history in future applications. Behind the raw numbers, it tells the story of millions of people who choose the United States as their destination for tourism, study, work, or a new life.

What Form I-94 Is

The I-94 is the official record of entry and departure for non-citizens in the United States. Since April 2013, issuance for those arriving by air or sea has been entirely electronic: the CBP officer collects biometric and passport data, and the system generates the document automatically. It can be accessed at the official portal i94.cbp.dhs.gov or through the CBP One app.

For those entering by land from Mexico or Canada, the I-94 still requires a manual request, either in person at the border or online up to seven days in advance. The current fee is US$6, and the document only becomes valid after presentation to an officer at the port of entry.

The record contains essential information: the I-94 number, admission date, visa class (B-1, B-2, F-1, H-1B, among others), and the date by which you must legally depart. That admit until date is what governs, not the expiration date printed on the consular visa.

Why the I-94 Matters So Much

The passport stamp shows that you entered, but the I-94 defines how long you can stay. Even with a B-1/B-2 visa valid for ten years, each visit is limited to the period recorded in the I-94, typically up to six months for tourists. Exceeding that date constitutes what is known as an overstay, with severe consequences under Section 212(a)(9)(B) of the Immigration and Nationality Act.

Those who remain beyond the authorized period for more than 180 days and then depart are barred from returning for three years. If the unlawful presence exceeds one year, the bar rises to ten years. In both cases, the clock starts only when the individual leaves U.S. territory, and the immigration record weighs heavily in any future visa application, change of status, or green card petition.

The I-94 history is also reviewed by consulates, immigration officers, and even employers sponsoring work visas. A pattern of short visits, no overstays, and timely departures is one of the most valuable signals for demonstrating immigration good faith.

Which Countries Visit the United States Most

Arrival monitoring is conducted by the National Travel and Tourism Office (NTTO), part of the Department of Commerce, with support from the Department of Homeland Security and CBP. Data are published monthly and form the country’s primary intelligence base on international tourism.

In 2024, the United States received approximately 72.4 million international visitors. The NTTO projected 77.1 million for 2025, with a return to pre-pandemic levels. The ten countries that sent the most visitors recorded by the I-94 were, in rounded figures:

  • Canada: 20.2 million
  • Mexico: 17 million
  • United Kingdom: 4 million
  • India: 2.2 million
  • Germany: 2 million
  • Brazil: 1.9 million
  • Japan: 1.8 million
  • France: 1.7 million
  • South Korea: 1.7 million
  • China: 1.6 million

Excluding Mexico and Canada, which have heavy land border traffic and specific admission categories, Brazil ranks among the top four largest sources of air visitors. This solidifies Brazil as a priority market for American tourism, with particular weight in states such as Florida, New York, and Texas.

Brazil on the Traveler Map

Brazilian travel to the United States resumed strong growth after the pandemic. In 2023, approximately 1.62 million Brazilians traveled to the country. In 2024, that number jumped to roughly 1.91 million, according to data compiled by the NTTO and reported by Brazilian travel agencies.

January was the busiest month, with around 178,000 arrivals, reflecting the peak of school holidays and high temperatures in Brazil. The most popular destinations were Florida (Miami, Orlando, and Fort Lauderdale), New York, and Atlanta. Approximately one-third of Brazilians arrived through Miami, the historic hub of the Portuguese-speaking community.

Beyond tourism, Brazil has also gained prominence among sources of international students. More than 10,000 Brazilians entered on F-1 visas in 2024, placing the country among the top five markets for international education in the United States. This trend reflects the expansion of exchange programs, the resumption of direct flights, and shorter visa wait times at U.S. consulates in Brazil.

Most-Visited States

Upon entering the United States, every traveler must declare an initial destination address. That data, cross-referenced with the I-94, allows the government to map which states attract the highest volume of foreign visitors. Three destinations have historically led the rankings.

Florida

By far the top choice for Brazilians, with Miami, Orlando, and Fort Lauderdale as the main entry points. Shopping, theme parks, sporting events, and the established Portuguese-speaking community account for the volume.

California

Draws a diverse audience from Asia, Europe, and Latin America. Los Angeles, San Francisco, and San Diego combine cultural tourism, the entertainment industry, and Silicon Valley’s tech ecosystem, which drives business travel year-round.

New York

New York City maintains its status as a global cultural and financial capital, with strong appeal to European, Asian, and Latin American travelers. JFK and Newark are strategic gateways for those combining tourism with corporate agendas.

Texas (Houston, Dallas, and Austin), Massachusetts (Boston and Cambridge), Illinois (Chicago), and Georgia (Atlanta) round out the group of rising states, driven by events, university hubs, and lower costs than coastal metropolises.

Visitor behavior has shifted in recent years, and the I-94 makes this movement visible. The number of travelers who research admission rules, authorized stay limits, and documentation requirements before departure continues to grow, especially since the digitization of the form and the launch of CBP One.

There is also the exploratory trip phenomenon: many visitors use their first entry as an opportunity to explore cities, job markets, and the cost of living before starting a formal immigration process. Work visas such as H-1B, L-1, and O-1, along with green cards through the EB-2 NIW and EB-5 categories, have been increasingly pursued by Brazilians who return home with a structured immigration plan.

Another clear trend is the decentralization of destinations. Cities such as Tampa, Nashville, Denver, Portland, and Austin are recording significant growth in international tourists, driven by cultural events, music festivals, technology conferences, and a more affordable cost of living.

The ADIS System and Enforcement

Behind the I-94 operates the Arrival and Departure Information System (ADIS), a DHS database that cross-references data from flight manifests, consular records, work authorizations, and border movements. The system enables the government to identify overstays, validate history in visa applications, and generate official statistics.

ADIS also sends automatic email alerts to travelers approaching the end of their authorized stay, reminding them of the mandatory departure date. This mechanism reduces involuntary overstays, but the ultimate responsibility for monitoring the I-94 always falls on the traveler.

How to Correct Errors on the I-94

Any errors on the I-94, such as an incorrect name, wrong passport number, or erroneous admission date, should be corrected as soon as possible. When the error is the CBP’s, the correction can be made in person at a Deferred Inspection Site at international airports or through the agency’s official channels. If the error originated from USCIS in a change or extension of status proceeding, the path is Form I-102.

Ignoring inconsistencies, even seemingly minor ones, can jeopardize future applications for extensions of stay, changes of visa category, or adjustment of status to a green card. Checking the I-94 immediately after each entry and saving a PDF copy is a simple practice that prevents problems years down the line.

From Trip to Immigration Plan

For many travelers, a first entry on a tourist visa becomes the starting point of a broader immigration plan. The non-negotiable rule is never to use the B-1/B-2 as a backdoor to live in the United States, a practice that constitutes immigration fraud and can result in permanent bars. The legitimate path runs through categories such as F-1 for study, H-1B and O-1 for skilled work, L-1 for corporate transfers, E-2 for investors from treaty countries, EB-2 NIW for professionals with exceptional abilities, and EB-5 for direct investment.

Each category has its own eligibility requirements, processing timelines, and costs. A clean I-94 record, with all departures within the authorized period, is a valuable asset in any of these petitions, because it demonstrates immigration discipline and respect for admission rules. For that reason, more than a bureaucratic record, the I-94 is part of the immigration biography of anyone who intends to build a legal path in the United States.

Victoria Harper

Editor-in-Chief

Meet the author

Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

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