Population during each mayor's tenure
6 mayors, ranked by how population changed from their first day in office, next to the province over the same months. Politare shows what happened during a tenure; it does not claim the office-holder caused it.
| # | Mayor | City | In office | Total | vs province | Per year | Chart |
|---|---|---|---|---|---|---|---|
| 1 | DPK Lee Chunhee | Sejong | 1 Jul 2014 – 1 Jul 2022 from 2014 | +187% 2014 → 2022 | +187.0 pts province +0.2% | +14.1%/yr | |
| 2 | UNDP Choi Ki-sun | Incheon | 1 Jul 1995 – 1 Jul 2002 from 1995 | +10.2% 1995 → 2002 | +4.5 pts province +5.7% | +1.4%/yr | |
| 3 | LKP Ahn Sang-soo | Incheon | 1 Jul 2002 – 1 Jul 2010 from 2002 | +5.9% 2002 → 2010 | +1.9 pts province +4.0% | +0.7%/yr | |
| 4 | DPK Song Young-gil | Incheon | 1 Jul 2010 – 1 Jul 2014 from 2010 | +5.1% 2010 → 2014 | +1.5 pts province +3.6% | +1.3%/yr | |
| 5 | N Choi Min-ho | Sejong | 1 Jul 2022 – now from 2022 | +4.5% 2022 → 2025 | +5.0 pts province −0.4% | +1.5%/yr | |
| 6 | LKP Paul Yoo | Incheon | 1 Jul 2022 – now from 2022 | +2.8% 2022 → 2025 | +3.2 pts province −0.4% | +0.9%/yr | |
| 7 | LKP Paul Yoo | Incheon | 1 Jul 2014 – 1 Jul 2018 from 2014 | +2.6% 2014 → 2018 | +1.6 pts province +1.0% | +0.6%/yr | |
| 8 | N Moon Heap | Daegu | 1 Jul 1995 – 1 Jul 2002 from 1995 | +2.2% 1995 → 2002 | −3.4 pts province +5.7% | +0.3%/yr | |
| 9 | DPK Park Nam-choon | Incheon | 1 Jul 2018 – 1 Jul 2022 from 2018 | +1.3% 2018 → 2022 | +2.1 pts province −0.7% | +0.3%/yr | |
| 10 | PPP Oh Se-hoon | Seoul | 1 Jul 2006 – 27 Oct 2011 from 2006 | +0.1% 2006 → 2011 | −4.6 pts province +4.7% | 0.0%/yr |
Showing 10 of 21 tenures.
Sorted by total, highest first. Every row is indexed to the last count complete before the first day in office ("from" marks a start that had to move because that count had no data, or because the period cut it); the province is measured over the same months. Levels are per cent changes, rates are differences in %; "per year" compounds levels and divides rates. Tenures with under 12 months, or under three observations, are left out. thousands, resident population · Statistics Korea resident population via the OECD regional database (TL3), calendar years dated at mid-year · metropolitan city data · as of Jul 2025.