Seoul
Explore Seoul's yearly and monthly population, households, and growth rates in detail.
Drag the sliders below to adjust the period. Growth rates update to the selected range.
Population trend (total/male/female)
Period-over-period change and growth rate
Households and people per household
Source: Statistics Korea KOSIS · Resident registration population and households
Reading population change in Seoul
Comparing resident registration data for 1992–2025. This commentary uses annual data independently of the period selected in the chart.
At the end of 2025, the registered population of Seoul was 9,299,548 people.
Annual change and the longer view
Population changed by -32,280 people (-0.3%) between 2024 and 2025.
Between 2020 and 2025, the five-year population change was -368,917 people (-3.8%). Compare this with the annual change to distinguish longer trends.
Among the years available on this page, the highest population was 10,935,230 people in 1992. The latest total differs from that level by -1,635,682 people. The first year is shown when a maximum is repeated.
Population and registered households
In 2025, there were 4,501,031 households, with an average of 2.1 people per household.
The change in registered households from the preceding year was +18,968 households.
Population and households can move in opposite directions. People per household is an average, not the share of one-person households or the most common household size. Registered households also differ from census households.
Compare with the same year nationally
This region accounted for 18.2% of Korea’s registered population in 2025.
In 2025, annual population change was -0.2% nationally and -0.3% in this region. Compare both counts and rates when regions differ in size.
Births, deaths, migration and boundary changes can affect population totals. These totals alone do not identify a cause or a policy effect. Check original table notes when administrative boundaries change.
Calculation and original data
Annual observations are year-end totals. Change is (comparison population ÷ baseline population − 1) × 100; national share is regional population ÷ national population in the same year × 100. Missing comparisons and zero denominators are not calculated. Averages and percentages are displayed to one decimal place.
- KOSIS population by administrative district and sex (DT_1B040A3)
- KOSIS registered households by administrative district (DT_1B040B3)
If a value or explanation looks wrong, send us the page URL and reference period. [email protected]
Annual population and households
Annual values behind the charts. A dash means missing or not calculable, not zero.
Expand annual data table
| Year | Registered population | Registered households | People per household |
|---|---|---|---|
| 2025 | 9,299,548 people | 4,501,031 households | 2.1 |
| 2024 | 9,331,828 people | 4,482,063 households | 2.1 |
| 2023 | 9,386,034 people | 4,469,417 households | 2.1 |
| 2022 | 9,428,372 people | 4,446,296 households | 2.1 |
| 2021 | 9,509,458 people | 4,426,007 households | 2.1 |
| 2020 | 9,668,465 people | 4,417,954 households | 2.2 |
| 2019 | 9,729,107 people | 4,327,605 households | 2.2 |
| 2018 | 9,765,623 people | 4,263,868 households | 2.3 |
| 2017 | 9,857,426 people | 4,220,082 households | 2.3 |
| 2016 | 9,930,616 people | 4,189,839 households | 2.4 |
| 2015 | 10,022,181 people | 4,189,948 households | 2.4 |
| 2014 | 10,103,233 people | 4,194,176 households | 2.4 |
| 2013 | 10,143,645 people | 4,182,351 households | 2.4 |
| 2012 | 10,195,318 people | 4,177,970 households | 2.4 |
| 2011 | 10,249,679 people | 4,192,752 households | 2.4 |
| 2010 | 10,312,545 people | 4,224,181 households | 2.4 |
| 2009 | 10,208,302 people | 4,116,660 households | 2.5 |
| 2008 | 10,200,827 people | 4,097,562 households | 2.5 |
| 2007 | 10,192,710 people | 4,046,086 households | 2.5 |
| 2006 | 10,181,166 people | 3,978,938 households | 2.6 |
| 2005 | 10,167,344 people | 3,871,024 households | 2.6 |
| 2004 | 10,173,162 people | 3,780,305 households | 2.7 |
| 2003 | 10,174,086 people | 3,714,697 households | 2.7 |
| 2002 | 10,207,295 people | 3,623,929 households | 2.8 |
| 2001 | 10,263,336 people | 3,570,228 households | 2.9 |
| 2000 | 10,311,314 people | 3,540,492 households | 2.9 |
| 1999 | 10,264,260 people | 3,490,616 households | 2.9 |
| 1998 | 10,270,506 people | 3,458,511 households | 3.0 |
| 1997 | 10,336,134 people | 3,462,552 households | 3.0 |
| 1996 | 10,418,076 people | 3,421,087 households | 3.0 |
| 1995 | 10,550,871 people | 3,417,958 households | 3.1 |
| 1994 | 10,759,454 people | 3,429,629 households | 3.1 |
| 1993 | 10,889,499 people | 3,408,080 households | 3.2 |
| 1992 | 10,935,230 people | 3,359,075 households | 3.3 |