United States' Nuclear Tests

There were 1,032 American nuclear tests from 1945 through 1990. Included in this total are the two atomic bombs used on Hiroshima and Nagasaki. Most of the tests took place at the Nevada Test Site (NNSS/NTS) and the Pacific Proving Grounds in the Marshall Islands and off Kiritimati Island in the Pacific, plus three in the Atlantic Ocean. Ten other tests took place at various locations in the United States, including Alaska, Nevada other than the NNSS/NTS, Colorado, Mississippi, and New Mexico.

Series	Years	Tests	Yield range (kilotons)	Total yield (kilotons)
Trinity	1945	1	21	21
World War II	1945	2	18-21	38
Crossroads	1946	2	21	42
Sandstone	1948	3	18 to 49	104
Ranger	1951	5	1 to 22	40
Greenhouse	1951	4	46 to 225	398
Buster-Jangle	1951	7	small to 31	72
Tumbler-Snapper	1952	8	1 to 31	104
Ivy	1952	2	500 to 10,400	10,900
Upshot-Knothole	1953	11	small to 61	252
Castle	1954	6	110 to 15,000	48,200
Teapot	1955	14	1 to 43	167
Wigwam	1955	1	30	30
Project 56	1955–56	4	0 to 0	0
Redwing	1956	17	small to 5,000	20,820
Project 57	1957	1	0	0
Plumbbob	1957	29	0 to 74	345
Project 58 + 58A	1957	4	small to 1	1
Hardtack I	1958	35	0 to 9,300	35,628
Argus	1958	3	2	4
Hardtack II	1958	37	0 to 22	46
Nougat	1961–62	44	small to 67	357
Sunbeam	1962	4	small to 2	2
Dominic	1962–63	31	2 to 8,300	34,640
Fishbowl	1962	9	400 to 1,400	2,205
Storax	1962–63	47	1 to 115	585
Roller Coaster	1963	4	0	0
Niblick	1963–64	41	small to 249	698
Whetstone	1964–65	46	small to 51	476
Flintlock	1965–66	47	small to 365	1,891
Latchkey	1966–67	38	small to 870	1,831
Crosstie	1967–68	48	small to 1,300	3,638
Bowline	1968–69	47	small to 1,150	2,152
Mandrel	1969–70	52	small to 1,90	5,528
Emery	1970–71	16	small to 220	565
Grommet	1971–72	34	small to 4,800	5,200
Toggle	1972–73	28	small to 250	958
Arbor	1973–74	18	small to 150	274
Bedrock	1974–75	27	small to 750	2,840
Anvil	1975–76	21	0 to 1,000	5,993
Fulcrum	1976–77	21	small to 140	635
Cresset	1977–78	22	0 to 150	1,122
Quicksilver	1978–79	16	1 to 140	717
Tinderbox	1979–80	14	1 to 140	452
Guardian	1980–81	14	1 to 140	322
Praetorian	1981–82	19	1 to 140	938
Phalanx	1982–83	18	1 to 143	365
Fusileer	1983–84	16	small to 150	521
Grenadier	1984–85	16	3 to 150	670
Charioteer	1985–86	16	small to 140	549
Musketeer	1986–87	14	3 to 150	970
Touchstone	1987–88	13	2 to 150	696
Cornerstone	1988–89	11	1 to 150	436
Aqueduct	1989–90	10	small to 150	426
Sculpin	1990–91	7	2 to 140	478
Julin	1991–92	7	small to 100	172
Totals		1,032		196,552

Note: This list also includes 27 Peaceful nuclear explosions (PNEs).