The gap occurring within the same country
Comparison of regions with the highest and lowest total fertility rates in the country (2025 provisional)
Jeonnam (1st in the country)
1.10
persons
Seoul (lowest in the country)
0.63
persons
1.75x gap — Same policy, different results
Sejong 1.06 · Chungbuk 0.96 · Gyeongbuk 0.93 · Chungnam·Ulsan 0.92 · Gangwon 0.91 · Gyeongnam 0.88 · Jeju 0.87 · Jeonbuk 0.85 · Gyeonggi 0.84 · Daejeon 0.83 · Incheon 0.82 · Daegu 0.81 · Gwangju 0.76 · Busan 0.74