Which has higher terrorist attacks by severity, Somalia or United States?

Somalia, at 0 attacks against 0 attacks in United States as of 2021.

How many years of comparable data are there for Somalia and United States?

51 years are reported by both, from 1970 to 2021.

Where does this data come from?

National Consortium for the Study of Terrorism and Responses to Terrorism (START) (2022) – with major processing by Our World in Data, published as Terrorist attacks by severity. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Somalia vs United States: Terrorist attacks by severity

Somalia

0 attacks

in 2021

United States

0 attacks

in 2021

Somalia rank

1st

United States rank

1st

Terrorist attacks by severity over time

Somalia
United States

How they compare

Somalia currently reports 0 attacks against 0 attacks in United States, a difference of 0 attacks.

The two have swapped places 4 times across 51 shared years of data; in 1970 it was United States ahead.

Somalia ranks 1st and United States ranks 1st of 187 countries.

Across the 6 decades both report, Somalia averaged higher in 1 and United States in 2.

Head to head by decade

Decade	Somalia	United States	Difference	Ahead
1970s	0 attacks	0 attacks	0 attacks	—
1980s	0 attacks	0 attacks	0 attacks	—
1990s	0 attacks	0.1111 attacks	0.1111 attacks	United States
2000s	0 attacks	0.3 attacks	0.3 attacks	United States
2010s	0.4 attacks	0 attacks	0.4 attacks	Somalia
2020s	0 attacks	0 attacks	0 attacks	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher terrorist attacks by severity, Somalia or United States?: Somalia, at 0 attacks against 0 attacks in United States as of 2021.
What is the difference in terrorist attacks by severity between Somalia and United States?: 0 attacks, with Somalia ahead.
How many years of comparable data are there for Somalia and United States?: 51 years are reported by both, from 1970 to 2021.
How do Somalia and United States rank globally for terrorist attacks by severity?: Somalia ranks 1st and United States ranks 1st of 187 countries.
Where does this data come from?: National Consortium for the Study of Terrorism and Responses to Terrorism (START) (2022) – with major processing by Our World in Data, published as Terrorist attacks by severity. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

About this data

Indicator: Terrorist attacks by severity
Unit: attacks
Source: National Consortium for the Study of Terrorism and Responses to Terrorism (START) (2022) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 188 places, 9,021 data points, 1970–2021
Last refreshed: 07 August 2026

Number of terrorist attacks with more than 100 deaths.