thumb|Counties of Estonia
By population
Source:
as of 1 January 2024
{| class="wikitable"
|-
!Rank
!County
!Population
!%
!Density
|-
|1
|Harjumaa||646,315|| 47.0%||149.1
|-
|2
|Tartumaa||164,460|| 11.9%||54.9
|-
|3
|Ida-Virumaa||132,286|| 9.6%||39.3
|-
|4
|Pärnumaa||87,891|| 6.3%||18.2
|-
|5
|Lääne-Virumaa||59,536|| 4.3%||17.1
|-
|6
|Viljandimaa||45,543|| 3.3%||13.3
|-
|7
|Raplamaa||34,246|| 2.4%||11.4
|-
|8
|Võrumaa||34,049|| 2.4%||14.7
|-
|9
|Saaremaa||32,021|| 2.3%||10.9
|-
|10
|Järvamaa||30,084|| 2.1%||11.4
|-
|11
|Valgamaa||27,924|| 2.0%||13.6
|-
|12
|Jõgevamaa||27,397|| 1.9%||10.5
|-
|13
|Põlvamaa||23,892|| 1.7%||11.0
|-
|14
|Läänemaa||20,625|| 1.5%||8.6
|-
|15
|Hiiumaa||8,418|| 0.6%||8.2
|-
|
|Estonia||1,374,687||100%||30.3
|}
By area
{| class="wikitable"
|-
!Rank
!County
!Area (km&)
!%
!Density
|-
|1
|Pärnumaa||4,807||10.9%||18.2
|-
|2
|Harjumaa||4,333|| 9.8%||149.1
|-
|3
|Lääne-Virumaa||3,465|| 7.8%||17.1
|-
|4
|Viljandimaa||3,423|| 7.6%||13.3
|-
|5
|Ida-Virumaa||3,364|| 7.6%||39.3
|-
|6
|Tartumaa||2,993|| 7.0%||54.9
|-
|7
|Raplamaa||2,980|| 6.8%||11.4
|-
|8
|Saaremaa||2,922|| 6.6%||10.9
|-
|9
|Järvamaa||2,623|| 5.9%||11.4
|-
|10
|Jõgevamaa||2,604|| 5.9%||10.5
|-
|11
|Läänemaa||2,383|| 5.4%||8.6
|-
|12
|Võrumaa||2,305|| 5.2%||14.7
|-
|13
|Põlvamaa||2,165|| 5.9%||11.0
|-
|14
|Valgamaa||2,044|| 4.6%||13.6
|-
|15
|Hiiumaa||1,023|| 2.3%||8.2
|-
|
|Estonia||45,228||100%||30.3
|}
By density
{| class="wikitable"
|-
!Rank
!County
!Population
!Area (km&)
!Density
|-
|1
|Harjumaa||646,315||4,333||1249.1
|-
|2
|Ida-Virumaa||132,286||3,364||39.3
|-
|3
|Tartumaa||164,460||2,993||54.9
|-
|4
|Lääne-Virumaa||59,536||3,465||17.1
|-
|5
|Pärnumaa||87,891||4,807||18.2
|-
|6
|Valgamaa||27,924||2,044||13.6
|-
|7
|Võrumaa||34,049||2,305||14.7
|-
|8
|Viljandimaa||55,877||3,423||13.3
|-
|9
|Järvamaa||30,084||2,623||11.4
|-
|10
|Põlvamaa||23,892||2,165||11.0
|-
|11
|Jõgevamaa||27,397||2,604||10.5
|-
|12
|Raplamaa||34,246||2,980||11.4
|-
|13
|Saaremaa||32,021||2,922||10.9
|-
|14
|Läänemaa||20,625||2,383||8.6
|-
|15
|Hiiumaa||8,418||1,023||8.2
|-
|
|Estonia||1,374,687||45,228||30.3
|}