South Asia

==== Regional groups of countries ====
{| class="wikitable sortable"
|- style="background:#ececec;"
! Name
! [[List of countries and dependencies by area|Area]]<br />(km<sup>2</sup>)
! [[List of countries and dependencies by population|Population]]
! [[List of countries and dependencies by population density|Population density]]<br />(per km<sup>2</sup>)
! Capital or Secretariat
! Currency
! Countries
! [[Official language]]
! [[Coat of arms]]
|-
| [[#Definition|Core definition]] of South Asia
| style="text-align:right;"| 5,220,460
| style="text-align:right;"| 1,726,907,000

| style="text-align:right;"| 330.79
| {{n/a}}
| {{n/a}}
| [[Afghanistan]], [[Bangladesh]], [[Bhutan]], India, [[Maldives]], [[Nepal]], [[Pakistan]], Sri Lanka
| {{n/a}}
| {{n/a}}
|-
| [[United Nations geoscheme|UNSD definition]] of Southern Asia
| style="text-align:right;"| 6,778,083
| style="text-align:right;"| 1,702,000,000
| style="text-align:right;"| 270.77
| {{n/a}}
| {{n/a}}
| [[Afghanistan]], [[Bangladesh]], [[Bhutan]], India, [[Iran]], [[Maldives]], [[Nepal]], [[Pakistan]], Sri Lanka
| {{n/a}}
| {{n/a}}
|-
| [[South Asian Association for Regional Cooperation|SAARC]]
| style="text-align:right;"| 4,637,469
| style="text-align:right;"| 1,626,000,000
| style="text-align:right;"| 350.6
| style="text-align:center;"| [[Kathmandu]]
| {{n/a}}
| [[Afghanistan]], [[Bangladesh]], [[Bhutan]], India, [[Maldives]], [[Nepal]], [[Pakistan]], Sri Lanka
| style="text-align:center;"| English
| {{n/a}}
|-
| [[South Asia Subregional Economic Cooperation|SASEC]]
| style="text-align:right;"| 3,565,467
| style="text-align:right;"| 1,485,909,931
| style="text-align:right;"| 416.75
| {{n/a}}
| {{n/a}}
| [[Bangladesh]], [[Bhutan]], India, [[Maldives]], [[Myanmar]], [[Nepal]], Sri Lanka
| {{n/a}}
| {{n/a}}
|-
| [[BBIN]]
| style="text-align:right;"| 3,499,559
| style="text-align:right;"| 1,465,236,000
| style="text-align:right;"| 418.69
| {{n/a}}
| {{n/a}}
| [[Bangladesh]], [[Bhutan]], India, Nepal
| {{n/a}}
| {{n/a}}
|}