Number of Animals Used for Testing

Source: Understanding Animal Research, “Rabbit in Research for Animal Testing,” flickr.com, Nov. 27, 2012, creative commons license

797,546 animals were used for research, testing, teaching, experimentation, and/or surgery in US states, DC, and Puerto Rico in 2019, according to an Apr. 30, 2021 USDA report.

That number includes 181,993 guinea pigs, 142,472 rabbits, and 98,296 hamsters. The total excludes animals not covered by the Animal Welfare Act (AWA), including cold-blooded animals (such as reptiles and most fish), farm animals used for food, and birds, rats, and mice specifically bred for use in research.

Massachusetts used 84,798 animals covered by the AWA for research in 2019, the most of any state, followed by Kansas (76,302) and California (62,338). Alaska used the fewest at 377, followed by Wyoming (398) and Idaho (434). All data below were reported by the US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS).

Total Animals Used for Testing
Animals Used for Testing: No Pain Involved & No Pain Drugs Administered
Animals Used for Testing: Pain Involved & Pain Drugs Administered
Animals Used for Testing: Pain Involved & No Pain Drugs Administered
Animals Held in Facilities but Not Used for Testing

Total Animals Used for Testing, 2019

	Cats	Dogs	Guinea Pigs	Hamsters	Nonhuman Primates	Pigs	Rabbits	Sheep	Other Species*	Total
Total	18,270	58,511	181,993	98,296	68,257	50,777	142,472	13,953	165,017	797,546
AK	0	0	0	0	0	0	0	0	377	377
AL	182	877	54	138	575	575	491	21	2,656	5,569
AR	28	302	4	2	191	1,371	514	0	103	2,515
AZ	464	767	9	135	40	358	223	171	1,722	3,889
CA	711	1,695	6,955	732	4,225	5,703	21,303	1,327	19,687	62,338
CO	368	910	1,546	205	1	934	952	805	2,952	8,673
CT	17	178	130	329	244	236	211	0	586	1,931
DC	7	25	435	20	137	287	131	3	10,495	11,540
DE	88	113	20	0	0	17	5,910	34	654	6,836
FL	380	665	96	0	844	1,011	79	161	2,328	5,564
GA	460	1,458	868	4,033	1,568	597	2,534	96	4,932	16,546
HI	162	197	0	0	0	38	13	14	229	653
IA	413	471	770	2,149	6	1,043	430	448	3,544	9,274
ID	9	11	8	134	0	0	18	8	246	434
IL	836	2,563	1,528	664	614	1,550	1,758	182	2,005	11,700
IN	287	1,614	776	14,936	239	683	2,389	44	5,193	26,161
KS	3,035	9,759	5,881	24,447	1,596	3,409	5,195	879	22,101	76,302
KY	199	248	0	80	28	405	55	67	599	1,681
LA	708	760	26	0	1,336	86	6,348	56	1,084	10,404
MA	603	9279	22,876	3,224	16,573	7,028	17,581	463	7,171	84,798
MD	35	621	8,272	2,560	7,518	1,633	3,633	168	6,044	30,484
ME	0	0	0	0	0	0	52	0	471	523
MI	189	788	17,915	32	419	527	2,181	436	1,087	23,574
MN	292	1,010	29,948	1,881	169	3,570	4,969	883	898	43,620
MO	1,190	2,423	2,348	9,949	231	2,868	1,118	138	644	20,909
MS	0	32	70	13	105	57	209	23	159	668
MT	1	0	0	0	12	0	0	0	692	705
NC	778	1,357	4,982	607	1,063	2,961	5,873	179	5,684	23,484
ND	125	130	2	0	0	38	20	10	190	515
NE	56	202	10	659	168	151	60	58	1,133	2,497
NH	0	0	0	0	0	117	26	0	624	767
NJ	873	3,547	18,177	25,328	2,525	387	9,704	9	1,345	61,895
NM	0	373	15	27	339	156	174	0	40	1,124
NV	108	536	7	54	0	114	24	0	376	1,219
NY	643	1,051	3,398	1,102	1,400	1,254	2,967	983	9,242	22,040
OH	1,533	2,147	43,872	965	461	2,070	8,783	247	2,222	62,300
OK	216	523	1,976	0	131	50	505	58	1,167	4,626
OR	16	17	219	2	2,210	225	47	295	1,618	4,649
PA	1,360	2,733	1,634	452	1,872	1,953	15,184	1,159	6,393	32,740
PR	3	42	0	0	4,473	8	73	0	0	4,599
RI	2	20	29	262	33	77	495	0	127	1,045
SC	165	236	121	64	394	160	83	9	1,470	2,702
SD	0	20	86	3	4	0	14	2	1,571	1,700
TN	334	800	165	540	90	675	110	5	2,106	4,825
TX	433	1,144	1,451	1,764	3,895	2,718	4,360	423	7,377	23,565
UT	167	269	169	473	23	235	801	177	682	2,996
VA	32	207	377	68	69	1,407	363	250	8,103	10,876
VT	45	15	14	0	0	0	12	3,146	164	3,396
WA	158	531	2,463	16	3,654	487	453	24	11,941	19,727
WI	403	5,692	2,288	238	8,782	1,529	13,979	264	2,538	35,713
WV	137	121	0	6	0	0	64	121	31	480
WY	19	32	3	3	0	19	1	107	214	398

*The total excludes animals not covered by the Animal Welfare Act (AWA), including cold-blooded animals (such as reptiles and most fish), farm animals used for food, and birds, rats, and mice specifically bred for use in research.

Source: Understanding Animal Research, “Mouse in Research for Animal Testing,” flickr.com, Nov. 27, 2012, creative commons license

Animals Used for Testing: No Pain Involved & No Pain Drugs Administered, 2019

	Cats	Dogs	Guinea Pigs	Hamsters	Nonhuman Primates	Pigs	Rabbits	Sheep	Other Species*	Total
Total	12,845	42,496	135,634	63,850	43,781	12,647	89,117	4,855	117,355	522,580
AK	0	0	0	0	0	0	0	0	188	188
AL	41	392	43	72	281	61	57	3	1,984	2,934
AR	28	302	4	2	126	22	514	0	85	1,083
AZ	352	572	9	26	0	32	65	20	1,109	2,185
CA	386	657	5,982	207	2,700	256	11,711	274	16,461	38,634
CO	309	497	303	25	1	16	490	187	2,399	4,227
CT	17	126	45	0	193	0	26	0	367	774
DC	4	5	382	15	114	6	28	0	7,782	8,336
DE	67	98	0	0	0	0	5,313	34	644	6,156
FL	61	280	62	0	727	14	27	18	1,016	2,205
GA	327	1,166	437	1,033	211	147	1,403	7	2,770	7,501
HI	60	129	0	0	0	0	13	14	229	445
IA	191	290	414	1,513	6	306	45	414	2,306	5,485
ID	0	0	0	0	0	0	18	0	26	44
IL	568	1,829	1,411	8	346	948	1,082	0	1,293	7,485
IN	168	1,338	358	9,706	221	332	55	0	4,798	16,976
KS	3,013	9,657	4,989	24,409	1,551	3,265	5,170	879	21,415	74,348
KY	84	104	0	0	4	178	11	40	417	838
LA	524	146	0	0	2	0	6151	56	170	7,049
MA	500	7,878	18,086	2,803	13,011	4,354	13,671	200	5,507	66,010
MD	18	383	3,022	908	3,020	47	1,232	63	4,265	12,958
ME	0	0	0	0	0	0	4	0	466	470
MI	124	348	9,325	32	39	4	1,228	182	1,020	12,302
MN	217	317	29,546	596	7	201	3,478	50	309	34,721
MO	1,052	1,809	1,284	2,309	87	851	226	25	483	8,126
MS	0	16	0	0	0	0	48	23	63	150
MT	1	0	0	0	5	0	0	0	398	404
NC	121	408	3,894	79	89	156	4,386	79	407	9,619
ND	95	98	2	0	0	24	20	10	178	427
NE	0	156	0	429	88	28	3	0	746	1,450
NH	0	0	0	0	0	2	0	0	511	513
NJ	843	3,085	5,967	17,669	1,702	121	6,045	2	505	35,939
NM	0	217	0	0	132	1	16	0	38	404
NV	23	13	7	0	0	1	4	0	231	279
NY	376	597	1,126	255	784	20	1,091	733	6,382	11,364
OH	1,066	1,248	42,133	35	290	32	5,278	0	111	50,193
OK	185	431	1,804	0	19	3	47	1	844	3,334
OR	6	4	0	0	1,325	0	25	72	1,069	2,501
PA	862	1,697	535	270	586	461	6,482	790	5,205	16,888
PR	3	42	0	0	4,394	3	45	0	0	4,487
RI	2	16	29	4	0	0	295	0	89	435
SC	22	31	121	64	138	0	12	6	1,331	1,725
SD	0	0	0	3	0	0	0	2	1,277	1,282
TN	268	627	96	213	7	76	77	1	885	2,250
TX	302	612	724	682	2,896	174	2,287	93	4,232	12,002
UT	153	167	0	279	0	23	34	6	503	1,165
VA	16	88	0	68	21	56	8	234	7,608	8,099
VT	0	0	14	0	0	0	6	191	139	350
WA	109	355	2,433	0	2,574	5	263	11	5,442	11,192
WI	206	4,234	1,044	127	6,084	420	10,622	39	1,497	24,273
WV	69	29	0	6	0	0	5	2	0	111
WY	6	2	3	3	0	1	0	94	155	264

Source: Understanding Animal Research, “Macaque Monkeys in Research for Animal Testing,” flickr.com, Nov. 27, 2012, creative commons license

Animals Used for Testing: Pain Involved & Pain Drugs Administered, 2019

	Cats	Dogs	Guinea Pigs	Hamsters	Nonhuman Primates	Pigs	Rabbits	Sheep	Other Species*	Total
Total	5,397	15,652	26,394	14,455	23,248	36,658	50,858	8,980	43,762	225,404
AK	0	0	0	0	0	0	0	0	189	189
AL	141	485	11	66	215	514	430	18	577	2,457
AR	0	0	0	0	65	1,349	0	0	18	1,432
AZ	112	193	0	109	40	316	67	128	610	1,575
CA	325	1,038	775	525	1,525	5,436	9,233	1,053	2,920	22,830
CO	37	340	954	106	0	918	451	613	447	3,896
CT	0	50	85	53	51	236	185	0	219	879
DC	3	20	53	5	23	281	103	3	2,070	2,561
DE	21	15	20	0	0	17	597	0	10	680
FL	319	385	34	0	117	997	52	143	1076	3,123
GA	133	292	419	1,278	1,356	407	1,127	89	1,867	6,968
HI	102	68	0	0	0	38	0	0	0	208
IA	222	181	274	62	0	737	385	23	1154	3,038
ID	9	11	8	134	0	0	0	8	215	385
IL	268	731	111	656	268	539	618	182	584	3,957
IN	119	261	418	399	18	348	2,123	44	387	4,117
KS	22	102	892	38	45	144	25	0	302	1,570
KY	115	144	0	80	24	227	44	27	182	843
LA	184	614	26	0	1,334	86	197	0	905	3,346
MA	103	1,399	3,939	345	3,561	2,597	3,835	263	1,549	17,591
MD	17	238	4,312	1,311	3,936	1,388	2,148	101	1,646	15,097
ME	0	0	0	0	0	0	48	0	5	53
MI	65	440	198	0	377	509	951	216	67	2,823
MN	75	689	345	1,179	161	3,369	1.485	833	589	8,725
MO	137	602	356	1,393	96	2,017	892	113	161	5,767
MS	0	16	70	13	105	57	161	0	91	513
MT	0	0	0	0	7	0	0	0	294	301
NC	657	949	173	454	974	2,805	1,487	100	5,225	12,824
ND	30	32	0	0	0	14	0	0	12	88
NE	56	46	10	230	80	123	57	41	387	1,030
NH	0	0	0	0	0	115	26	0	113	254
NJ	30	376	7,630	2,461	807	265	3,170	7	744	15,490
NM	0	66	0	27	109	107	128	0	2	439
NV	85	523	0	54	0	113	20	0	145	940
NY	267	422	1,072	781	612	1,169	1,810	230	2,523	8,886
OH	467	881	1,043	930	89	1,874	3,357	247	2,041	10,929
OK	31	92	172	0	112	39	83	57	251	837
OR	10	13	219	2	885	225	22	223	455	2,054
PA	493	1,032	715	182	1,244	847	8,589	369	1,115	14,586
PR	0	0	0	0	79	5	28	0	0	112
RI	0	4	0	258	33	77	200	0	38	610
SC	143	205	0	0	256	160	71	3	139	977
SD	0	0	0	0	4	0	14	0	293	311
TN	66	173	69	255	83	599	33	4	1,218	2,500
TX	131	532	290	856	716	2,497	2,043	330	2,742	10,137
UT	14	102	50	86	23	212	767	171	179	1,604
VA	16	119	377	0	40	1,276	183	16	495	2,522
VT	45	15	0	0	0	0	6	2,955	25	3,046
WA	49	176	30	16	1,080	482	190	13	6,475	8,511
WI	197	1,458	1,244	111	2,698	1,109	3,357	225	921	11,320
WV	68	92	0	0	0	0	59	119	31	369
WY	13	30	0	0	0	18	1	13	59	134

Source: Understanding Animal Research, “Mice in Research for Animal Testing,” flickr.com, Nov. 27, 2012, creative commons license

Animals Used for Testing: Pain Involved & No Pain Drugs Administered, 2019

	Cats	Dogs	Guinea Pigs	Hamsters	Nonhuman Primates	Pigs	Rabbits	Sheep	Other Species*	Total
Total	28	361	19,965	19,991	1,228	1,462	2,406	95	3,886	49,422
AK	0	0	0	0	0	0	0	0	0	0
AL	0	0	0	0	79	0	4	0	95	178
AR	0	0	0	0	0	0	0	0	0	0
AZ	0	0	0	0	0	0	0	0	0	0
CA	0	0	198	0	0	11	359	0	306	874
CO	22	73	289	74	0	0	11	5	106	580
CT	0	2	0	276	0	0	0	0	0	278
DC	0	0	0	0	0	0	0	0	643	643
DE	0	0	0	0	0	0	0	0	0	0
FL	0	0	0	0	0	0	0	0	236	236
GA	0	0	12	1,722	1	43	4	0	295	2,077
HI	0	0	0	0	0	0	0	0	0	0
IA	0	0	82	574	0	0	0	11	84	751
ID	0	0	0	0	0	0	0	0	5	5
IL	0	3	6	0	0	63	58	0	117	247
IN	0	15	0	4,831	0	3	211	0	8	5,068
KS	0	0	0	0	0	0	0	0	384	384
KY	0	0	0	0	0	0	0	0	0	0
LA	0	0	0	0	0	0	0	0	9	9
MA	0	2	851	76	1	77	75	0	115	1,197
MD	0	0	938	341	562	198	253	4	133	2,429
ME	0	0	0	0	0	0	0	0	0	0
MI	0	0	8,392	0	3	14	2	38	0	8,449
MN	0	4	57	106	1	0	6	0	0	174
MO	1	12	708	6,247	48	0	0	0	0	7,016
MS	0	0	0	0	0	0	0	0	5	5
MT	0	0	0	0	0	0	0	0	0	0
NC	0	0	915	74	0	0	0	0	52	1,041
ND	0	0	0	0	0	0	0	0	0	0
NE	0	0	0	0	0	0	0	17	0	17
NH	0	0	0	0	0	0	0	0	0	0
NJ	0	86	4,580	5,198	16	1	489	0	96	10,466
NM	0	90	15	0	98	48	30	0	0	281
NV	0	0	0	0	0	0	0	0	0	0
NY	0	32	1,200	66	4	65	66	20	337	1,790
OH	0	18	696	0	82	164	148	0	70	1,178
OK	0	0	0	0	0	8	375	0	72	455
OR	0	0	0	0	0	0	0	0	94	94
PA	5	4	384	0	42	645	113	0	73	1,266
PR	0	0	0	0	0	0	0	0	0	0
RI	0	0	0	0	0	0	0	0	0	0
SC	0	0	0	0	0	0	0	0	0	0
SD	0	20	86	0	0	0	0	0	1	107
TN	0	0	0	72	0	0	0	0	3	75
TX	0	0	437	226	283	47	30	0	403	1,426
UT	0	0	119	108	0	0	0	0	0	227
VA	0	0	0	0	8	75	172	0	0	255
VT	0	0	0	0	0	0	0	0	0	0
WA	0	0	0	0	0	0	0	0	24	24
WI	0	0	0	0	0	0	0	0	120	120
WV	0	0	0	0	0	0	0	0	0	0
WY	0	0	0	0	0	0	0	0	0	0

Source: Understanding Animal Research, “Macaques x3 Standing on Tube C0002798 Adjusted,” flickr.com, Jan. 26, 2009, creative commons license

Animals Held in Facilities but Not Used for Testing, 2019

	Cats	Dogs	Guinea Pigs	Hamsters	Non-Human Primates	Pigs	Rabbits	Sheep	Other Species*	Total
Total	1,326	5,999	14,403	4,519	40,269	6,951	18,967	1,692	43,099	137225
AK	0	0	0	0	0	0	0	0	109	109
AL	114	66	0	0	1	1,490	7	13	596	2,287
AR	1	270	0	0	58	0	15	0	42	386
AZ	0	2	0	0	0	10	91	23	3	129
CA	230	211	343	93	2,138	73	1,757	176	9,611	14,632
CO	29	30	93	0	0	30	15	424	889	1,510
CT	0	36	1	0	15	0	2	2	96	152
DC	21	0	0	6	0	0	0	0	0	27
DE	0	0	0	0	0	0	4,088	0	116	4,204
FL	110	108	0	0	4,077	1	15	1	1,215	5,527
GA	4	14	2	38	2,490	0	225	0	902	3,675
HI	0	0	2	0	0	0	0	0	0	2
IA	0	0	0	0	0	3,380	12	0	615	4,007
ID	0	0	0	0	0	0	0	0	60	60
IL	10	54	14	0	61	9	154	10	737	1,049
IN	59	125	24	518	117	12	105	0	675	1,635
KS	3	87	31	1	4	0	0	0	718	844
KY	92	126	0	0	0	77	18	40	971	1,324
LA	21	10	0	0	12,416	25	2	0	234	12,708
MA	0	74	73	599	2,360	186	767	16	3,262	7,337
MD	0	0	259	789	5,292	0	67	0	4,825	11,232
ME	0	0	2	0	0	0	39	0	231	272
MI	28	104	7,430	0	39	9	6	0	19	7,635
MN	0	44	1,715	33	0	398	180	35	29	2,434
MO	76	293	132	511	25	352	23	42	252	1,706
MS	0	0	0	0	14	0	3	0	0	17
MT	0	0	0	0	0	0	0	0	414	414
NC	0	8	0	0	0	0	0	0	0	8
ND	0	0	0	0	0	0	0	0	0	0
NE	0	0	0	6	0	22	3	1	0	32
NH	0	0	0	0	0	0	2	0	63	65
NJ	27	141	243	236	275	1	70	0	219	1,212
NM	35	14	0	45	53	0	0	0	57	204
NV	0	0	10	0	0	0	10	0	0	20
NY	47	40	40	45	90	3	51	7	1,766	2,089
OH	91	35	899	1	0	29	563	9	281	1,908
OK	0	11	112	0	0	0	0	0	316	439
OR	3	0	8	0	4,225	0	0	0	14	4,250
PA	101	100	1,759	195	58	23	1,597	378	1,815	6,026
PR	0	0	0	0	0	0	0	0	0	0
RI	0	0	0	369	0	0	12	0	375	756
SC	0	0	1	0	0	0	1	0	3,697	3,699
SD	0	0	0	0	0	0	6	250	136	392
TN	39	78	0	181	52	7	2	0	474	833
TX	90	68	108	289	2,508	283	2,359	110	4,909	10,724
UT	0	0	48	543	35	0	2	90	306	1,024
VA	0	3	12	18	2	384	21	0	64	504
VT	0	0	0	0	0	0	0	0	5	5
WA	0	24	69	0	1,227	14	162	0	1,528	3,024
WI	95	3,823	973	3	2,637	133	6,515	37	390	14,606
WV	0	0	0	0	0	0	0	28	53	81
WY	0	0	0	0	0	0	0	0	10	10

Source

USDA, “Research Facility Annual Summary & Archive Reports,” aphis.usda.gov, Apr. 30, 2021

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