Drug overdose fatalities in the United States witnessed a dramatic decrease of over 20% last year, as reported by the Centers for Disease Control and Prevention (CDC). This decline aligns with former President Donald Trump’s intensified efforts to secure the nation’s borders.

Joseph Giacalone, a former NYPD sergeant and current criminal justice lecturer at Penn State Lehigh Valley, noted, “The downturn began towards the end of President Biden’s term. The question remains: was it a result of anticipating a more crime-focused administration?”

The CDC’s data, which encompasses figures up until August 2025, reveals that overdose deaths were on an upward trajectory as Trump assumed office. These numbers then stabilized, surged, and subsequently plateaued during President Joe Biden’s tenure.

An image captured at the US-Mexico border in Eagle Pass, Texas, depicts migrants crossing the Rio Grande from Mexico into the United States on Saturday, September 28, 2024. (Credit: Jabin Botsford/The Washington Post via Getty Images)

Although the CDC has not specified a direct cause for the reduction in overdose deaths, the timing coincides with heightened border security measures.

“The enhanced security at the borders significantly contributes to the decline,” Giacalone explained to Fox News Digital. “With tighter controls, drug traffickers and couriers face increased challenges in smuggling drugs into the country.”

Data from the CDC shows US overdose deaths between January 2015 and August 2025. (CDC)

Amid steep criticism, the Biden administration eventually stepped up border enforcement near the end of his term, and the decline accelerated when Trump returned to office.

Groups of migrants of different nationalities arrive at the Rio Grande, to cross it and surrender to the American authorities on Feb. 19, 2024. (Christian Torres/Anadolu via Getty Images)

Other factors may include increased availability of opioid overdose antidotes, like Narcan, but Giacalone said he believes that nothing made a bigger impact than “shutting down the floodgates at the border.”

“The jury is still out on the effect of blowing up drug boats, but I can imagine it working as a deterrent as well,” he added. “Deterrence matters in criminal justice policy.”

The CDC noted that the data is provisional because some causes of death are still under investigation.

Customs and Border Protection officers in Arizona seized 65 pounds of methamphetamine and five pounds of fentanyl pills in a January 14 bust, according to authorities.  (CBP)

Louisiana, Florida, Virginia, New York, Vermont, Wyoming and the District of Columbia saw drops of more than 30%.

Broken down regionally, only five states did not see a decline in overdose deaths.

North Dakota remained flat. Kansas and Hawaii both saw increases in deaths of less than 2%. New Mexico rose by about 3.5%.

President Donald Trump has taken a series of actions to crackdown on fentanyl flowing in the U.S. since his return to the Oval Office in January 2025. (Anna Moneymaker/Getty Images)

Only Arizona saw a substantial increase — with fatal overdoses climbing 17.75% between August 2024 and 2025.

That spike came after authorities revealed in 2023 that fentanyl overdoses were killing three people a day in Maricopa County.

Authorities in the Grand Canyon State have cracked down on fentanyl dealers in an effort to counter the trend there.

Maricopa prosecutors have identified fentanyl awareness as one of their top initiatives and are aggressively using a new state law to go after dealers whose drugs kill people.