Athens

=== Metropolitan Area ===
The Athens Metropolitan Area, with an area of {{convert|2928.717|km2|sqmi|0|abbr=on}} and inhabited by 3,744,059 people in 2021,<ref name=census21/> consists of the Athens Urban Area with the addition of the towns and villages of [[East Attica|East]] and [[West Attica]], which surround the dense urban area of the Greek capital. It actually sprawls over the whole peninsula of Attica, which is the best part of the [[Attica (region)|region of Attica]], excluding the [[Islands (regional unit)|islands]].

{|class="wikitable"
|-
!colspan="6"|Classification of regional units within Greater Athens, Athens Urban Area and Athens Metropolitan Area
|-
! [[Regional units of Greece|Regional unit]]
! Population (2021)<ref name=census21/>
! Land Area (km2)
!colspan="3"|Area
|-
| [[Central Athens (regional unit)|Central Athens]]
| align=right| 1,002,212
| align=right| 87.4
| rowspan="4" style="text-align:center;"| '''Greater Athens'''<br />2,611,713<br />364.2 km2
| rowspan="5" style="text-align:center;"| '''Athens Urban Area'''<br />3,059,764<br />414.6 km2
| rowspan="7" style="text-align:center;"| '''Athens Metropolitan Area'''<br /> 3,744,059<br />2931.6 km2
|-
| [[North Athens (regional unit)|North Athens]]
| align=right| 601,163
| align=right| 140.7
|-
| [[South Athens (regional unit)|South Athens]]
| align=right| 529,455
| align=right| 69.4
|-
| [[West Athens (regional unit)|West Athens]]
| align=right| 478,883
| align=right| 66.7
|-
| [[Piraeus (regional unit)|Piraeus]]
| align=right| 448,051
| align=right| 50.4
| align=center | '''Greater Piraeus'''<br />448,051<br />50.4 km2
|-
| [[East Attica]]
| align=right| 518,755
| align=right| 	1,513
|-
| [[West Attica]]
| align=right| 165,540
| align=right| 	1,004
|}