Leading 50 science cities in chemistry

The leading 50 science cities and metropolitan areas in chemistry ranked by article Share (Share) in the subject in 2021. Also listed are each city’s article count (Count) in chemistry in 2021, and its contritution to the location’s total subject Share of the year.

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Position	City/metropolitan area	Location	Share 2021	Count 2021	Contribution to location's Share (%)
1	Beijing	China mainland	1,371.06	2,806	15.3%
2	Shanghai	China mainland	975.00	1,788	10.9%
3	Nanjing	China mainland	539.31	959	6.0%
4	Tokyo metropolitan area	Japan	445.99	764	33.2%
5	Guangzhou	China mainland	400.12	792	4.5%
6	Wuhan	China mainland	391.31	679	4.4%
7	New York metropolitan area	United States of America (USA)	384.73	818	8.0%
8	San Francisco Bay Area	United States of America (USA)	384.21	764	8.0%
9	Tianjin	China mainland	370.48	667	4.1%
10	Boston metropolitan area	United States of America (USA)	369.07	729	7.7%
11	Hefei	China mainland	368.06	728	4.1%
12	Seoul metropolitan area	South Korea	350.53	642	51.1%
13	Chicago metropolitan area	United States of America (USA)	314.82	635	6.6%
14	Hangzhou	China mainland	304.52	645	3.4%
15	Singapore*	Singapore	287.03	572	100%
16	Changchun	China mainland	278.53	477	3.1%
17	Hong Kong	China mainland	250.82	600	2.8%
18	Shenzhen	China mainland	249.54	689	2.8%
19	Chengdu	China mainland	245.95	407	2.8%
20	Xi’an	China mainland	230.01	488	2.6%
21	Changsha	China mainland	224.83	379	2.5%
22	Jinan	China mainland	223.05	371	2.5%
23	Fuzhou	China mainland	221.05	440	2.5%
24	Dalian	China mainland	215.98	423	2.4%
25	Los Angeles metropolitan area	United States of America (USA)	196.73	396	4.1%
26	Zürich	Switzerland	195.91	383	45.3%
27	Baltimore - Washington	United States of America (USA)	191.38	444	4.0%
28	Paris metropolitan area	France	183.50	440	31.2%
29	Suzhou	China mainland	181.44	358	2.0%
30	Berlin metropolitan area	Germany	158.43	344	9.0%
31	Chongqing	China mainland	157.13	272	1.8%
32	London metropolitan area	United Kingdom (UK)	156.56	373	16.2%
33	Munich	Germany	151.88	314	8.6%
34	Xiamen	China mainland	147.52	284	1.7%
35	San Diego metropolitan area	United States of America (USA)	142.36	262	3.0%
36	Osaka	Japan	141.44	265	10.5%
37	Kyoto	Japan	138.75	278	10.3%
38	Cambridge	United Kingdom (UK)	135.08	309	13.9%
39	Philadelphia metropolitan area	United States of America (USA)	132.14	255	2.8%
40	Daejeon	South Korea	126.07	288	18.4%
41	Lanzhou	China mainland	125.16	237	1.4%
42	Oxford	United Kingdom (UK)	124.46	301	12.9%
43	Qingdao	China mainland	117.96	229	1.3%
44	Lausanne	Switzerland	108.43	192	25.1%
45	Melbourne	Australia	108.43	270	29.2%
46	Tsukuba	Japan	106.45	349	7.9%
47	Zhengzhou	China mainland	102.35	320	1.1%
48	Sydney	Australia	101.90	238	27.4%
49	Taipei	Taiwan	100.11	214	53.8%
50	Atlanta metropolitan area	United States of America (USA)	98.81	206	2.1%

Footnote

* Singapore is a city-state.