Ulsan
Explore Ulsan'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 Ulsan
Comparing resident registration data for 1997–2025. This commentary uses annual data independently of the period selected in the chart.
At the end of 2025, the registered population of Ulsan was 1,091,948 people.
Annual change and the longer view
Population changed by -6,101 people (-0.6%) between 2024 and 2025.
Between 2020 and 2025, the five-year population change was -44,069 people (-3.9%). Compare this with the annual change to distinguish longer trends.
Among the years available on this page, the highest population was 1,173,534 people in 2015. The latest total differs from that level by -81,586 people. The first year is shown when a maximum is repeated.
Population and registered households
In 2025, there were 499,304 households, with an average of 2.2 people per household.
The change in registered households from the preceding year was +3,926 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 2.1% of Korea’s registered population in 2025.
In 2025, annual population change was -0.2% nationally and -0.6% 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 | 1,091,948 people | 499,304 households | 2.2 |
| 2024 | 1,098,049 people | 495,378 households | 2.2 |
| 2023 | 1,103,661 people | 490,690 households | 2.2 |
| 2022 | 1,110,663 people | 486,143 households | 2.3 |
| 2021 | 1,121,592 people | 482,650 households | 2.3 |
| 2020 | 1,136,017 people | 476,893 households | 2.4 |
| 2019 | 1,148,019 people | 468,659 households | 2.4 |
| 2018 | 1,155,623 people | 461,756 households | 2.5 |
| 2017 | 1,165,132 people | 458,547 households | 2.5 |
| 2016 | 1,172,304 people | 455,352 households | 2.6 |
| 2015 | 1,173,534 people | 451,688 households | 2.6 |
| 2014 | 1,166,377 people | 442,250 households | 2.6 |
| 2013 | 1,156,480 people | 431,595 households | 2.7 |
| 2012 | 1,147,256 people | 422,177 households | 2.7 |
| 2011 | 1,135,494 people | 412,561 households | 2.8 |
| 2010 | 1,126,298 people | 405,501 households | 2.8 |
| 2009 | 1,114,866 people | 394,364 households | 2.8 |
| 2008 | 1,112,407 people | 389,735 households | 2.9 |
| 2007 | 1,099,995 people | 380,865 households | 2.9 |
| 2006 | 1,092,494 people | 373,114 households | 2.9 |
| 2005 | 1,087,648 people | 365,197 households | 3.0 |
| 2004 | 1,081,453 people | 356,143 households | 3.0 |
| 2003 | 1,072,867 people | 348,058 households | 3.1 |
| 2002 | 1,065,037 people | 338,845 households | 3.1 |
| 2001 | 1,055,618 people | 331,502 households | 3.2 |
| 2000 | 1,040,225 people | 322,838 households | 3.2 |
| 1999 | 1,024,336 people | 315,410 households | 3.2 |
| 1998 | 1,015,249 people | 311,199 households | 3.3 |
| 1997 | 1,009,652 people | 307,000 households | 3.3 |