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Mapped: Fentanyl Seized at U.S. Borders Over Time

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Over the last 20 years, America’s opioid crisis has spiraled into an epidemic, and fentanyl is at the center of it.

Fentanyl is a synthetic opioid that can be up to 50 times stronger than heroin and 100 times stronger than morphine. Recently, it has been in the news due to President Trump’s decision to impose tariffs on Mexico, Canada, and China, citing the need to curb fentanyl inflows (and illegal immigration) from these countries.

This infographic highlights how much fentanyl is being seized along the Northern and Southern U.S. borders, as well as coastal and interior ports of entry like airports and seaports.

The data comes from the U.S. Customs and Border Protection department, combining figures from the U.S. Border Patrol and Office of Field Operations along with Air and Marine Operations, with fiscal years (FY) from October to September.

How Much Fentanyl Comes From Canada and Mexico?

Since 2022, the majority of illegal fentanyl—over 90%—has been seized along the U.S.-Mexico border. By contrast, Canada’s border and the U.S.’s coastal and interior regions have seen significantly lower amounts.

Here’s a look at the data of total fentanyl seizures (in pounds) across U.S. borders from 2022 to January of 2025:

Fiscal YearCanada BorderMexico BorderCoastal/InteriorTotal Fentanyl Seizures 2022555 lbs14,486 lbs981 lbs16,022 lbs 2023587 lbs27,275 lbs596 lbs28,458 lbs 20241,448 lbs21,489 lbs751 lbs23,688 lbs 2025 YTD37 lbs5,515 lbs459 lbs6,011 lbs

In 2023, more than 27,000 lbs of fentanyl were seized along the Mexican border, nearly double the amount caught in 2022. While these figures declined in 2024, fentanyl seizures from Mexico were still almost 10 times the amount seized at the Canadian border and across U.S. coastal or interior seizures combined.

As of 2025, U.S. border agencies have seized more than 6,000 lbs of fentanyl, nearly 92% of it along the Mexican border. According to U.S. Customs and Border Protection, cartels primarily try to smuggle fentanyl via vehicles driven by U.S. citizens.

However, the rise in seizures suggests that U.S. border agencies are