Of the most-cited 146 countries in ALL FIELDS from Essential Science Indicators, the top 20 are presented below sorted by citations, papers, and cites per paper.

SOURCE: Essential Science Indicators from the November 1, 2007 update covering a ten-year plus eight-month period, January 1997 - August 31, 2007.
 
Sorted by:
 Papers • Citations • Cites Per Paper
Rank COUNTRY PAPERS CITATIONS CITATIONS
PER PAPER
1 USA
2,864,275
39,027,838
13.63
2 JAPAN
777,992
6,612,826
8.50
3 GERMANY
738,067
7,935,567
10.75
4 ENGLAND
653,177
7,955,521
12.18
5 FRANCE
529,636
5,414,557
10.22
6 PEOPLES R CHINA
471,890
1,894,810
4.02
7 CANADA
393,143
4,377,986
11.14
8 ITALY
371,205
3,594,444
9.68
9 RUSSIA
275,945
1,057,928
3.83
10 SPAIN
270,139
2,248,541
8.32
11 AUSTRALIA
249,892
2,442,466
9.77
12 NETHERLANDS
220,881
2,837,971
12.85
13 INDIA
215,847
895,528
4.15
14 SOUTH KOREA
192,361
1,005,008
5.22
15 SWEDEN
168,574
2,053,237
12.18
16 SWITZERLAND
159,667
2,285,847
14.32
17 BRAZIL
137,159
720,131
5.25
18 TAIWAN
130,281
693,017
5.32
19 POLAND
121,061
658,927
5.44
20 BELGIUM
118,411
1,295,296
10.94
SOURCE: Essential Science Indicators.
 
Sorted by:
Papers • Citations • Cites Per Paper
Rank COUNTRY PAPERS CITATIONS CITATIONS
PER PAPER
1 USA
2,864,275
39,027,838
13.63
2 ENGLAND
653,177
7,955,521
12.18
3 GERMANY
738,067
7,935,567
10.75
4 JAPAN
777,992
6,612,826
8.50
5 FRANCE
529,636
5,414,557
10.22
6 CANADA
393,143
4,377,986
11.14
7 ITALY
371,205
3,594,444
9.68
8 NETHERLANDS
220,881
2,837,971
12.85
9 AUSTRALIA
249,892
2,442,466
9.77
10 SWITZERLAND
159,667
2,285,847
14.32
11 SPAIN
270,139
2,248,541
8.32
12 SWEDEN
168,574
2,053,237
12.18
13 PEOPLES R CHINA
471,890
1,894,810
4.02
14 BELGIUM
118,411
1,295,296
10.94
15 SCOTLAND
102,053
1,286,716
12.61
16 DENMARK
87,496
1,129,465
12.91
17 ISRAEL
106,122
1,098,417
10.35
18 RUSSIA
275,945
1,057,928
3.83
19 SOUTH KOREA
192,361
1,005,008
5.22
20 FINLAND
82,001
948,501
11.57
SOURCE: Essential Science Indicators.
 
Sorted by:
Papers • Citations • Cites Per Paper
Rank COUNTRY PAPERS CITATIONS CITATIONS
PER PAPER
1 BERMUDA

233

4,300

18.45
2 SWITZERLAND

159,667

2,285,847

14.32
3 GAMBIA

710

9,773

13.76
4 PANAMA

1,405

19,217

13.68
5 USA

2,864,275

39,027,838

13.63
6 DENMARK

87,496

1,129,465

12.91
7 NETHERLANDS

220,881

2,837,971

12.85
8 SCOTLAND

102,053

1,286,716

12.61
9 GABON

636

7,970

12.53
10 ICELAND

3,964

49,611

12.52
11 SWEDEN

168,574

2,053,237

12.18
12 ENGLAND

653,177

7,955,521

12.18
13 FINLAND

82,001

948,501

11.57
14 HONG KONG

11,520

130,082

11.29
15 CANADA

393,143

4,377,986

11.14
16 BELGIUM

118,411

1,295,296

10.94
17 GERMANY

738,067

7,935,567

10.75
18 GUINEA BISSAU

173

1,833

10.6
19 ISRAEL

106,122

1,098,417

10.35
20 AUSTRIA

83,179

859,140

10.33
SOURCE: Essential Science Indicators.