Editing Demographics of Bulgaria (section)

=== Regional differences ===

As of 2022, the municipality of [[Tvarditsa Municipality|Tvarditsa]] has the highest crude birth rate in the country, at 18.4‰, followed by the municipalities of [[Yablanitsa Municipality|Yablanitsa]] (17.9‰) and [[Nikolaevo|Nikolaevo Municipality]] (17.2‰). All these municipalities have relatively large [[Romani people in Bulgaria|Romani]] populations.
<br>
{| class="wikitable centre" style="text-align: right;"
|-
! colspan=19 | Top 20 municipalities with the highest birth rate (2021)<ref name="birth1">{{cite web|title=Live births by districts, municipalities and sex|publisher=National Statistical Institute|url=https://nsi.bg/en/content/2961/live-births-districts-municipalities-and-sex}}</ref><ref name="pop1">{{cite web|title=Population by Districts, Municipalities, Place of Residence and Sex as of 31.12.2022|publisher=National Statistical Institute|url=https://nsi.bg/en/content/2975/population-districts-municipalities-place-residence-and-sex}}</ref>
|-
! Municipality !! Birth rate (‰)
|-
| style="text-align:right; | [[Tvarditsa Municipality]], [[Sliven Province]] || style="text-align:right; | 18.4
|-
| style="text-align:right; | [[Yablanitsa Municipality]], [[Lovech Province]] || style="text-align:right; | 17.9
|-
| style="text-align:right; | [[Nikolaevo|Nikolaevo Municipality]], [[Stara Zagora Province]] || style="text-align:right; | 17.2
|-
| style="text-align:right; | [[Kaynardzha Municipality]], [[Silistra Province]] || 16.1
|-
| style="text-align:right; | [[Ugarchin Municipality]], [[Lovech Province]] || 15.1
|-
| style="text-align:right; | [[Kotel Municipality]], [[Sliven Province]] || 14.6
|-
| style="text-align:right; | [[Nikola Kozlevo Municipality]], [[Shumen Province]] || 14.6
|-
| style="text-align:right; | [[Lukovit Municipality]], [[Lovech Province]] || 13.6
|-
| style="text-align:right; | [[Dolna Banya Municipality]], [[Sofia Province]] || 13.0
|-
| style="text-align:right; | [[Bratya Daskalovi|Bratya Daskalovi Municipality]], [[Stara Zagora Province]] || 12.5
|-
| style="text-align:right; | [[Straldzha|Straldzha Municipality]], [[Yambol Province]] || 12.5
|-
| style="text-align:right; | [[Gurkovo|Gurkovo Municipality]], [[Stara Zagora Province]] || 12.4
|-
| style="text-align:right; | [[Sadovo|Sadovo Municipality]], [[Plovdiv Province]] || 12.4
|-
| style="text-align:right; | [[Nova Zagora]] Municipality, [[Sliven Province]] || 12.3
|-
| style="text-align:right; | [[Strazhitsa Municipality]], [[Veliko Tarnovo Province]] || 12.2
|-
| style="text-align:right; | [[Suhindol Municipality]], [[Veliko Tarnovo Province]] || 12.2
|-
| style="text-align:right; | [[Ruzhintsi Municipality]], [[Vidin Province]] || 12.1
|-
| style="text-align:right; | [[Rakovski (town)|Rakovski Municipality]], [[Plovdiv Province]] || 12.1
|-
| style="text-align:right;" | [[Devnya Municipality]], [[Varna Province]] || 12.0
|-
| style="text-align:right;" | [[Dimovo Municipality]], [[Vidin Province]] || 12.0
|-
! colspan=19 | Top 20 municipalities with the lowest birth rate (2017)<ref name="nsi.bg1">{{cite web |url= http://www.nsi.bg/en/content/6627/live-births-districts-municipalities-and-mother's-age|title=Live births|website=www.nsi.bg}}</ref>
|-
| style="text-align:right; | [[Nedelino]] Municipality, [[Smolyan Province]] || style="text-align:right; | 5.7
|-
| style="text-align:right; | [[Hisarya, Bulgaria|Hisarya]] Municipality, [[Plovdiv Province]] || style="text-align:right; | 5.6
|-
| style="text-align:right; | [[Kocherinovo Municipality]], [[Kyustendil Province]] || style="text-align:right; | 5.6
|-
| style="text-align:right; | [[Devin, Bulgaria|Devin]] Municipality, [[Smolyan Province]] || style="text-align:right; | 5.5
|-
| style="text-align:right; | [[Gramada Municipality]], [[Vidin Province]] || style="text-align:right; | 5.5
|-
| style="text-align:right; | [[Svoge Municipality]], [[Sofia Province]] || style="text-align:right; | 5.5
|-
| style="text-align:right; | [[Godech Municipality]], [[Sofia Province]] || style="text-align:right; | 5.4
|-
| style="text-align:right; | [[Apriltsi Municipality]], [[Lovech Province]] || style="text-align:right; | 5.3
|-
| style="text-align:right; | [[Novo Selo Municipality]], [[Vidin Province]] || style="text-align:right; | 5.0
|-
| style="text-align:right; | [[Chepelare]] Municipality, [[Smolyan Province]] || style="text-align:right; | 4.9
|-
| style="text-align:right; | [[Zemen]] Municipality, [[Pernik Province]] || style="text-align:right; | 4.9
|-
| style="text-align:right; | [[Hitrino Municipality]], [[Shumen Province]] || style="text-align:right; | 4.8
|-
| style="text-align:right; | [[Chiprovtsi Municipality]], [[Montana Province]] || style="text-align:right; | 4.7
|-
| style="text-align:right; | [[Borovo Municipality, Bulgaria|Borovo Municipality]], [[Ruse Province]] || style="text-align:right; | 4.5
|-
| style="text-align:right; | [[Belene Municipality]], [[Pleven Province]] || style="text-align:right; | 4.4
|-
| style="text-align:right; | [[Tryavna Municipality]], [[Gabrovo Province]] || style="text-align:right; | 4.2
|-
| style="text-align:right; | [[Boynitsa Municipality]], [[Vidin Province]] || style="text-align:right; | 4.0
|-
| style="text-align:right; | [[Nevestino Municipality]], [[Kyustendil Province]] || style="text-align:right; | 3.8
|-
| style="text-align:right; | [[Banite]] Municipality, [[Smolyan Province]] || style="text-align:right; | 3.2
|-
| style="text-align:right; | [[Georgi Damyanovo Municipality]], [[Montana Province]] || style="text-align:right; | 3.1
|}
On the other hand, the municipalities of [[Georgi Damyanovo Municipality|Georgi Damyanovo]], [[Banite]] and [[Nevestino Municipality|Nevestino]] have incredibly low birth rates. These municipalities are almost exclusively inhabited by ethnic Bulgarians.