The United States recorded the most confirmed unprovoked shark bites in 2025, with 25 cases; Australia had 21. The worldwide total of 65 was near the 2020–2024 annual average of 61 and below the ten-year average of 72, so the 2025 count does not show that bites are becoming more frequent.
These figures are confirmed recorded cases, not a census of every incident: the Florida Museum of Natural History says a significant fraction likely goes unreported. Annual counts can fluctuate, and a lead in one country or year does not establish a long-term trend.
What the 2025 shark-bite numbers show
The International Shark Attack File (ISAF), housed at the Florida Museum of Natural History, investigated 105 alleged shark-human interactions worldwide in 2025. It classified them as follows:
| Classification | Cases in 2025 |
|---|---|
| Confirmed unprovoked bites | 65 |
| Confirmed provoked bites | 29 |
| Boat bites | 4 |
| Scavenging cases | 2 |
| Public-aquarium case | 1 |
| Cases with no assignment | 3 |
| Unconfirmed case | 1 |
ISAF recorded nine unprovoked fatalities in 2025, compared with a five-year annual average of eight. Fatalities are a separate measure from bite totals: a higher fatality count in a year does not show that bites overall are becoming more frequent.
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What “unprovoked bite” means
“Unprovoked” is a specific ISAF classification, not a synonym for every shark-human interaction. ISAF defines an unprovoked bite as a bite on a live human in a shark’s natural habitat when the person has not provoked the shark. Provoked cases include people initiating interaction, such as attempting to touch or feed a shark, or handling one caught in fishing gear.
For comparisons between places and years, confirmed unprovoked bites are a more consistent measure than the broad phrase “shark attack.” The records count investigated and confirmed cases; they do not establish that a shark was deliberately hunting a person.
The United States led in 2025
The United States recorded 25 confirmed unprovoked bites, 38% of the global total. Australia ranked second with 21. The U.S. count was down from 28 in 2024. The Florida Museum reports that U.S. unprovoked bites decreased overall during the preceding five years, even though the country remained the region with the most reported activity.
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| Country | Confirmed unprovoked bites in 2025 | Unprovoked fatalities in 2025 |
|---|---|---|
| United States | 25 | 1 |
| Australia | 21 | 5 |
The U.S. share of the global total also fell to 38% in 2025 after exceeding 50% in each year since 2019, according to the Florida Museum’s companion article.
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Are shark bites happening more often?
The 2025 global count does not establish that they are. ISAF recorded 65 confirmed unprovoked bites, near the 2020–2024 five-year annual average of 61 and below the ten-year average of 72. These averages cover different periods, so they should not be treated as interchangeable.
In the United States, the count fell from 28 in 2024 to 25 in 2025, and the Florida Museum describes an overall decline during the preceding five years. Local and yearly totals can still rise or fall. A single year’s count, whether for one country or worldwide, cannot establish a sustained trend by itself.
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Why the numbers fluctuate
ISAF says annual fluctuations are expected. Oceanographic conditions can affect local shark abundance, while weather and economic conditions can affect how people use coastlines. These are factors that may influence recorded totals, not a complete explanation of the 2025 count.
The records also have limits: a significant fraction of incidents likely goes unreported, according to the Florida Museum. Changes in confirmed counts therefore should not be read as a complete measure of every bite that occurred.
Why the United States records the most
The U.S. lead is a count of reported, confirmed incidents—not a measure of the number of sharks, the danger posed by individual species, or risk per beach visit. The U.S. count was 25 in 2025, while the worldwide total was 65. Counts alone cannot show whether someone in one country faces greater personal risk than someone elsewhere.
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Florida recorded 11 unprovoked bites, below its five-year average of 19. Volusia County recorded six, below its five-year average of 10. Those local comparisons show why a national lead should not be confused with every area having a rising count.
What the recorded activities tell us
Among recorded 2025 cases, swimming and wading accounted for 46%, surfing and other board sports for 32%, and snorkeling and free-diving for 15%. These are shares of recorded cases, not activity-specific risk rates. The data do not provide a denominator for comparing the risk per person or per hour spent in each activity.
What the 2025 figures do—and do not—tell us
- The United States had the most confirmed unprovoked bites in 2025, with 25; Australia had 21.
- The global total of 65 was near the 2020–2024 average of 61 and below the ten-year average of 72.
- The U.S. total fell from 28 in 2024, and the Florida Museum says the U.S. count decreased overall during the preceding five years.
- Nine unprovoked fatalities were recorded worldwide, compared with a five-year annual average of eight; fatalities and total bites are different measures.
- These are confirmed recorded cases, and some incidents likely go unreported.
- The counts do not provide enough information to calculate a person’s probability of being bitten.
FAQ
How many unprovoked shark bites happened in the United States in 2025?
The United States recorded 25 confirmed unprovoked bites in 2025, down from 28 in 2024. Florida recorded 11, including six in Volusia County.
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Are shark bites increasing worldwide?
The 2025 global total of 65 was near the 2020–2024 average of 61 and below the ten-year average of 72. Those figures do not establish a sustained worldwide increase.
Did the United States or Australia have more bites in 2025?
The United States recorded 25 confirmed unprovoked bites and Australia recorded 21. Australia had five unprovoked fatalities, compared with one in the United States; fatalities are separate from bite counts.
Do the recorded activity shares show which water activities are riskiest?
No. The percentages describe the activities recorded in confirmed cases, not risk rates per participant or per hour. The dossier does not provide the exposure data needed for that comparison.
Do these counts include every shark bite?
No. They include cases investigated and classified by ISAF. The Florida Museum says a significant fraction of incidents likely goes unreported.
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