軍の要員は現役軍人ですが、訓練、組織、装置、および制御が、正規軍を支援したり、正規軍の代わりに使用される可能性がある場合、準軍事部隊を含めます。
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| アルゼンチン | 85,000 | 102,300 | 102,000 | 104,340 | 104,350 | 104,350 | 105,650 | 105,650 | 105,450 | 105,450 | 105,000 | 105,200 | 103,000 | 103,000 |
| ボリビア | 30,000 | 69,600 | 70,000 | 83,200 | 83,200 | 83,200 | 83,200 | 71,200 | 71,200 | 71,200 | 71,000 | 71,100 | 71,000 | 71,000 |
| ブラジル | 295,000 | 673,200 | 673,000 | 713,480 | 713,480 | 713,480 | 713,480 | 729,500 | 729,500 | 729,500 | 730,000 | 761,500 | 762,000 | 762,000 |
| チリ | 95,000 | 116,500 | 116,000 | 103,771 | 103,750 | 106,100 | 106,100 | 109,450 | 109,450 | 121,900 | 122,000 | 122,200 | 122,000 | 114,000 |
| コロンビア | 110,000 | 247,000 | 336,000 | 441,828 | 440,224 | 440,224 | 455,750 | 455,750 | 481,100 | 481,100 | 481,000 | 481,200 | 481,000 | 428,000 |
| キューバ | 297,000 | 84,500 | 76,000 | 75,500 | 75,500 | 75,500 | 75,500 | 75,500 | 75,500 | 75,500 | 76,000 | 76,000 | 76,000 | 76,000 |
| エクアドル | 53,000 | 57,800 | 47,270 | 58,983 | 58,983 | 58,500 | 58,983 | 40,750 | 40,750 | 40,750 | 41,000 | 41,250 | 42,000 | 42,000 |
| メキシコ | 175,000 | 207,800 | 204,000 | 331,750 | 329,750 | 329,750 | 325,450 | 336,050 | 336,050 | 336,050 | 336,000 | 348,000 | 328,000 | 341,000 |
| パナマ | 11,000 | 11,800 | 12,000 | 12,000 | 12,000 | 12,000 | 12,000 | 12,000 | 22,050 | 22,050 | 26,000 | 26,000 | 28,000 | 28,000 |
| パラグアイ | 16,000 | 35,000 | 25,000 | 25,450 | 25,450 | 25,450 | 25,450 | 25,450 | 25,450 | 25,450 | 27,000 | 28,950 | 29,000 | 29,000 |
| ペルー | 125,000 | 193,000 | 157,000 | 192,000 | 192,000 | 192,000 | 192,000 | 158,000 | 158,000 | 158,000 | 158,000 | 158,000 | 158,000 | 158,000 |
| ウルグアイ | 25,000 | 24,600 | 24,920 | 25,439 | 25,450 | 25,450 | 25,450 | 25,450 | 25,450 | 25,450 | 22,000 | 22,100 | 22,000 | 22,000 |
| ベネズエラ（ボリバル共和国） | 75,000 | 79,000 | 82,000 | 115,000 | 115,000 | 115,000 | 115,000 | 265,000 | 265,000 | 273,000 | 343,000 | 343,000 | 343,000 | 343,000 |