Here we present a snapshot of the gender distribution of IAU membership for adhering countries with over 30 members for the years in which an IAU General Assembly was held. For the current gender statistics of all adhering member countries, see the IAU’s Geographical Distribution of Individual Members.
| Country | 2015 | 2012 | 2009 | 2006 | 2003 |
| Argentina | 138 (39.13%) |
132 (36.36%) |
110 (36.36%) |
105 (36.2%) |
101 (35.6%) |
| Australia | 282 (15.79%) |
256 (15.23%) |
229 (13.10%) |
211 (10.0%) |
195 (8.2%) |
| Austria | 63 (20.63%) |
51 (19.61%) |
35 (11.43%) |
35 (11.4%) |
32 (9.4%) |
| Belgium | 138 (18.12%) |
112 (15.18%) |
105 (13.33%) |
97 (12.4%) |
101 (11.9%) |
| Brazil | 183 (20.22%) |
172 (22.67%) |
149 (21.48%) |
143 (20.3%) |
125 (17.6%) |
| Bulgaria | 59 (32.20%) |
53 (26.42%) |
47 (21.28%) |
49 (28.6%) |
46 (32.6%) |
| Canada | 270 (13.70%) |
240 (12.5%) |
230 (10.43%) |
195 (9.7%) |
201 (6.5%) |
| Chile | 114 (17.54%) |
76 (17.11%) |
67 (13.43%) |
57 (8.8%) |
46 (8.7%) |
| China (Nanjing) | 616 (12.99%) |
410 (15.37%) |
305 (12.46%) |
291 (12.0%) |
368 (9.2%) |
| China (Taipei) | 65 (15.38%) |
54 (7.41%) |
38 (5.26%) |
30 (10.0%) |
N/A |
| Czech Republic | 108 (11.11%) |
90 (13.33%) |
78 (11.45%) |
75 (8.0%) |
75 (8.0%) |
| Denmark | 79 (11.39%) |
69 (14.49%) |
61 (9.84%) |
57 (12.3%) |
52 (7.7%) |
| Egypt | 42 (14.29%) |
54 (11.11%) |
56 (10.71%) |
57 (10.5%) |
N/A |
| Finland | 72 (15.28%) |
63 (15.87%) |
62 (14.52%) |
53 (13.2%) |
50 (14.0%) |
| France | 762 (25.92%) |
688 (24.27%) |
642 (24.14%) |
625 (25.9%) |
643 (26.3%) |
| Germany | 632 (10.76%) |
514 (9.14%) |
495 (8.28%) |
484 (6.8%) |
455 (5.7%) |
| Greece | 110 (15.45%) |
106 (16.04%) |
102 (13.73%) |
104 (12.5%) |
N/A |
| Hungary | 57 (22.81%) |
45 (20%) |
47 (21.28%) |
44 (20.5%) |
45 (17.8%) |
| India | 260 (7.69%) |
220 (7.73%) |
214 (7.01%) |
221 (5.9%) |
237 (5.1%) |
| Ireland | 46 (21.74%) |
43 (20.93%) |
41 (14.63%) |
35 (14.3%) |
34 (17.6%) |
| Israel | 90 (11.11%) |
70 (7.14%) |
65 (4.62%) |
63 (4.8%) |
48 (2.1%) |
| Italy | 605 (25.45%) |
554 (24.74%) |
511 (22.5%) |
445 (20.9%) |
437 (19.9%) |
| Japan | 664 (6.93%) |
586 (5.80%) |
546 (5.13%) |
502 (4.0%) |
471 (3.2%) |
| Korea | 136 (11.76%) |
110 (10.00%) |
98 (10.20%) |
67 (6.0%) |
66 (6.1%) |
| Mexico | 125 (16.80%) |
109 (16.51%) |
97 (17.53%) |
90 (16.7%) |
90 (17.8%) |
| Netherlands | 219 (11.42%) |
205 (11.71%) |
187 (9.09%) |
177 (9.0%) |
172 (9.9%) |
| New Zealand | 37 (13.51%) |
N/A | N/A | N/A | N/A |
| Norway | 38 (15.79%) |
31 (12.9%) |
N/A | N/A | N/A |
| Poland | 155 (15.48%) |
144 (14.58%) |
140 (11.43%) |
126 (10.3%) |
121 (10.7%) |
| Portugal | 43 (20.93%) |
N/A | 39 (20.51%) |
35 (22.9%) |
N/A |
| Romania | 31 (32.26%) |
32 (34.38%) |
33 (36.36%) |
37 (37.8%) |
38 (39.5%) |
| Russian Fed | 400 (18.75%) |
353 (16.43%) |
346 (16.7%)6 |
365 (18.1%) |
349 (18.3%) |
| Serbia | 39 (23.08%) |
N/A | N/A | N/A | N/A |
| Slovakia | 42 (9.52%) |
37 (5.41%) |
N/A | 32 (12.5%) |
N/A |
| South Africa | 94 (20.21%) |
66 (13.64%) |
61 (11.48%) |
56 (10.7%) |
55 (7.3%) |
| Spain | 348 (20.69%) |
308 (18.51%) |
257 (18.29%) |
243 (18.5%) |
218 (17%) |
| Sweden | 123 (13.01%) |
110 (13.64%) |
106 (13.21%) |
106 (13.2%) |
100 (12%) |
| Switzerland | 131 (12.21%) |
78 (11.54%) |
72 (6.94%) |
90 (6.7%) |
80 (2.5%) |
| Turkey | 61 (22.95%) |
40 (17.5%) |
31 (9.68%) |
50 (12.0%) |
52 (1.5%) |
| Ukraine | 181 (29.28%) |
186 (26.88%) |
169 (24.26%) |
160 (19.4%) |
151 (17.9%) |
| United Kingdom | 653 (13.02%) |
483 (12.63%) |
653 (11.33%) |
573 (10.0%) |
561 (10.0%) |
| USA | 2568 (13.55%) |
2533 (12.48%) |
2455 (11.16%) |
2419 (10.5%) |
2300 (9.7%) |
| TOTAL | 11291 (15.91%) |
9903 (15.04%) |
9417 (13.57%) |
7832 (12.9%) |
8594 (12.1%) |
