United States military casualties of war

The following is a tabulation of United States military casualties of war.

Overview

Note: "Total casualties" includes wounded, combat and non-combat deaths but not missing in action. "Deaths – other" includes all non-combat deaths including those from bombing, massacres, disease, suicide, and murder.

Wars ranked by U.S. battle deaths

The following is a list of wars caught by number of U.S. battle deaths suffered by military forces; deaths from disease and other non-battle causes are not included. Although the Confederate States of America did not consider itself part of the United States, and its forces were not part of the U.S. Army, its battle deaths are included with the losses of the Union (American Civil War).

Rank	War	Years	Deaths
1	World War II	1941–1945	291,557
2	American Civil War	1861–1865	214,938
3	World War I	1917–1918	53,402
4	Vietnam War	1955–1975	47,434
5	Korean War	1950–1953	33,686
6	American Revolutionary War	1775–1783	6,800
7	Iraq War	2003–2011	4,424
8	War of 1812	1812–1815	2,260
9	War in Afghanistan	2001–2021	1,833
10	Mexican–American War	1846–1848	1,733
11	Gulf War	1990–1991	288

Wars ranked by total number of U.S. military deaths

Rank	War	Years	Deaths	Deaths per day	U.S. population in first year of war	Deaths as percentage of population
1	American Civil War	1861–1865	655,000	449	31,443,000	2.11%
2	World War II	1941–1945	405,399	297	133,402,000	0.307%
3	World War I	1917–1918	116,516	200	103,268,000	0.110%
4	Vietnam War	1961–1975	58,209	11	179,323,175	0.032%
5	Korean War	1950–1953	36,574	30	151,325,000	0.024%
6	American Revolutionary War	1775–1783	25,000	11	2,500,000	1.00%
7	War of 1812	1812–1815	15,000	15	8,000,000	0.207%
8	Mexican–American War	1846–1848	13,283	29	21,406,000	0.057%
9	Iraq War	2003–2011	4,576	2	294,043,000	0.002%
10	Philippine–American War	1899–1902	4,196	3.8	72,129,001	0.006%
11	War in Afghanistan	2001–2021	2,432	0.3	294,043,000	0.001%
12	Spanish–American War	1898	2,246	9.6	62,022,250	0.004%

"Deaths per day" is the total number of Americans killed in military service, divided by the number of days between the commencement and end of hostilities. "Deaths per population" is the total number of deaths in military service, divided by the U.S. population of the year indicated.