Singapore’s Population in One Snapshot
Population at a Glance
- Total population (June 2025): 6.11 million, up 1.2% from June 2024
- Singapore citizens: 3.66 million (59.9% of total), up 0.7% year-on-year
- Permanent residents: 0.54 million (8.8% of total), stable
- Non-residents: 1.91 million (31.3% of total), up 2.7% year-on-year
- Land area: approximately 736 to 744 square kilometers
- Population density: approximately 8,300 to 8,400 people per square kilometer
- Median age of resident population (citizens + PRs): 43.2 to 43.7 years, up from 39.6 a decade earlier
- Total fertility rate: 0.97 (2024), among the lowest in the world
- Residents aged 65 and older: 18.8% (2025), up from 11.8% in 2015
Sources: Singapore Department of Statistics, Population Trends 2025; National Population and Talent Division, Population in Brief 2025.
Singapore’s total population reached 6.11 million as at June 2025, packed onto a land area of just 736 to 744 square kilometers, roughly 700 to 745 depending on the measurement source, giving it a population density around 8,300 to 8,400 people per square kilometer. That places Singapore among the three most densely populated sovereign states in the world. What makes Singapore’s demographic story genuinely distinctive is not the density alone, but how deliberately engineered the population’s growth, composition, and aging trajectory have been, through decades of explicit government population planning that few other countries attempt at this level of detail.
Behind the headline density figure sits a population built from three legally distinct categories, citizens, permanent residents, and non-residents, each growing at a different pace and for different reasons. Citizens are aging faster than almost any population in Southeast Asia, with a fertility rate that fell to just 0.97 in 2024, while the non-resident population, driven by active labor policy rather than birth trends, grew by 2.7 percent in a single year to meet construction and infrastructure demand.
Why Singapore Is So Densely Populated
Singapore’s land constraint is absolute rather than relative: the country has no rural hinterland to expand into and has spent more than half a century pursuing land reclamation to physically increase its territory, growing from approximately 582 square kilometers in the 1960s to around 745 square kilometers today, an expansion of nearly 28 percent achieved through reclaimed coastline, polders, and land-use engineering. Even with that expansion, Singapore remains one of the smallest sovereign states in land area globally, ranked 175th out of the world’s countries by territory, while supporting a population comparable to that of mid-sized nations.
The government’s response to this constraint has been intensive vertical urban planning: high-density public housing developments managed by the Housing and Development Board, strict land-use zoning through the Urban Redevelopment Authority, and one of the world’s most extensive public transit networks relative to land area, all designed to accommodate population growth without the sprawl that land-constrained growth would otherwise produce.
Citizens, Permanent Residents and Foreign Workers
Singapore’s population framework divides residents into three legally and statistically distinct tiers, each tracked separately by the Department of Statistics:
| Category | Population (June 2025) | Share of Total | Definition |
|---|---|---|---|
| Singapore Citizens | 3.66 million | 59.9% | Full citizenship, includes birthright and naturalized citizens |
| Permanent Residents | 0.54 million | 8.8% | Long-term residency without full citizenship |
| Non-Residents | 1.91 million | 31.3% | Foreign workers, students, dependents; excludes tourists |
Source: Singapore Department of Statistics, Population Trends 2025.
The non-resident population is itself internally diverse: roughly two-thirds consists of the foreign workforce, spanning Work Permit Holders in construction and other manual labor sectors through to skilled Employment Pass holders in finance and technology, while the remaining third comprises Migrant Domestic Workers, dependents of residents, and international students.
The 2.7 percent growth in non-residents recorded between June 2024 and June 2025 was driven primarily by an increase in Work Permit Holders and Migrant Domestic Workers, tied directly to specific infrastructure projects including the construction of Changi Airport Terminal 5 and expanded public housing supply, illustrating how tightly Singapore’s non-resident population tracks concrete economic and infrastructure demand rather than open-ended immigration.
Singapore’s Low Fertility Creates a Population Challenge
Singapore’s total fertility rate stood at 0.97 in 2024, unchanged from 2023, meaning the average Singaporean woman has fewer than one child over her lifetime, less than half the replacement rate of 2.1. This places Singapore among a small group of the world’s lowest-fertility societies, alongside South Korea, Taiwan, and Hong Kong.
Median age at first marriage among citizens reached 30.8 years for grooms and 29.1 years for brides in 2024, with citizen marriages themselves declining 5.7 percent that year to 22,955, reflecting broader patterns of delayed marriage and family formation that researchers commonly link to housing costs, extended education, and career prioritization, particularly among women.
The consequence is that Singapore’s citizen population growth is now driven almost entirely by naturalization rather than births: all new citizens in recent years have come from the existing permanent resident pool, with the government granting 22,766 new citizenships and 35,264 new permanent residencies in 2024, according to National Population and Talent Division data, reinforcing a deliberate, controlled approach to population replacement that stands in sharp contrast to Singapore’s much larger and more fluid non-resident labor inflows.
Immigration Has Become Central to Population Growth
Because citizen births alone cannot sustain Singapore’s population or workforce, immigration functions as the primary lever available to policymakers for managing both population size and labor supply. The National Population and Talent Division has been explicit that Singapore takes “a measured approach in granting citizenship and permanent residence to those who can contribute to the nation and integrate well into society,” reflecting an immigration model built around selective, economically-driven admission rather than large-scale open immigration.
This produces a two-track migration system: a comparatively small, carefully managed pathway from permanent residency to citizenship for those intended to settle long-term, alongside a much larger, more flexible non-resident workforce of nearly 1.91 million people whose size expands and contracts with specific labor market and infrastructure needs, most of whom are not on a citizenship track at all.
Singapore Is Also Becoming Older
Singapore’s resident population, comprising citizens and permanent residents together, has aged rapidly even by regional standards. The median age of the resident population climbed to 43.2 to 43.7 years in 2025, up from 39.6 just a decade earlier in 2015, an increase of more than three years in ten years. The share of citizens aged 65 and older rose from 13.1 percent in 2015 to 20.7 percent in 2025, while the working-age citizen population aged 20 to 64 fell from 64.5 percent to 59.8 percent over the same period.
Projections cited by demographic analysts following Singapore’s official data suggest that by 2030, approximately 23.9 percent of citizens, nearly one in four, will be aged 65 or older, a threshold commonly used to mark entry into what demographers term a “super-aged society.” The number of citizens aged 80 and above has already reached 145,000 as of 2025.
Aging Trajectory Among Singapore Citizens
| Year | Median Age (Residents) | 65+ Share of Citizens | Working-Age (20-64) Share |
|---|---|---|---|
| 2015 | 39.6 | 13.1% | 64.5% |
| 2024 | 42.8 | 18.0% | ~60% |
| 2025 | 43.2-43.7 | 18.8-20.7% | 59.8% |
| 2030 (projected) | — | ~23.9% | — |
Housing, Infrastructure and Population Planning
Singapore’s approach to population management is unusually explicit and forward-looking compared to most countries: government agencies openly publish annual, detailed population reports that connect demographic trends directly to housing supply targets, transit infrastructure investment, and labor policy decisions. The government has directly linked the 2024-2025 increase in non-resident construction workers to specific infrastructure needs, including Changi Airport Terminal 5 and expanded housing supply through the Housing and Development Board, treating population inflows as an instrument of infrastructure delivery rather than a byproduct of unrelated immigration policy.
This integrated planning approach extends to healthcare and eldercare infrastructure, which is being scaled in direct anticipation of the citizen population’s rapid aging trajectory toward the 23.9 percent 65-and-older share projected for 2030.
Population Differences Across Singapore
Singapore’s 55 planning areas, defined by the Urban Redevelopment Authority, show substantial variation in population and density. Tampines, the largest planning area by population, houses approximately 290,090 residents, while densities across residential planning areas range widely, with areas such as Bukit Panjang reaching approximately 15,168 people per square kilometer and Bukit Batok around 14,899, reflecting the concentrated, high-rise public housing developments that characterize most of Singapore’s residential planning areas outside the central business district.
Singapore’s Demographic Model Compared With Other Advanced Economies
Singapore’s demographic profile shares core features with Hong Kong, Japan, South Korea, and Taiwan, all of which combine very low fertility with rapid aging, but Singapore’s approach diverges sharply in its reliance on a large, actively managed non-resident workforce to offset labor shortfalls that citizen population alone cannot fill.
Japan and South Korea have historically been far more restrictive toward immigration despite facing similarly severe aging and fertility pressures, while Singapore has built immigration, at both the permanent residency and non-resident workforce levels, into the explicit core of its economic and demographic strategy since the 1990s.
| Country/Territory | Total Fertility Rate | Immigration Approach |
|---|---|---|
| Singapore | 0.97 (2024) | Highly managed, immigration-central |
| South Korea | ~0.75 (see dedicated article) | Historically restrictive |
| Japan | ~1.2 (see dedicated article) | Historically restrictive |
| Hong Kong | ~0.75-0.9 | Moderate |
Figures for comparison countries drawn from their respective national statistical sources; see this series’ dedicated Japan and South Korea articles for full sourcing.
Singapore’s Population Outlook
Singapore’s total population growth rate over the past five years, 2020 to 2025, ran higher than the preceding five-year period, 2015 to 2020, driven mainly by non-resident inflows tied to specific labor demand rather than any reversal in the citizen fertility trend.
With fertility unchanged at 0.97 and no indication of a near-term rebound, Singapore’s demographic future will almost certainly continue to depend on two managed levers: selective naturalization from the permanent resident pool to sustain the citizen population, and non-resident workforce expansion calibrated to specific economic and infrastructure needs. The trajectory toward a near-quarter share of citizens aged 65 and older by 2030 is now effectively locked in given current cohort sizes, regardless of any fertility policy changes enacted in the near term.
Frequently Asked Questions
1. Why is Singapore so densely populated?
Singapore has an absolute land constraint, with a total area of only about 736 to 744 square kilometers, and has pursued land reclamation since the 1960s to expand from roughly 582 to 745 square kilometers. Supporting a population of 6.11 million on this limited land has required intensive high-density, vertical urban planning.
2. How many people live in Singapore?
Singapore’s total population reached 6.11 million as at June 2025, according to the Department of Statistics, comprising 3.66 million citizens, 0.54 million permanent residents, and 1.91 million non-residents.
3. What percentage of Singapore’s population is foreign?
Non-residents made up approximately 31.3 percent of Singapore’s total population in 2025, while permanent residents added a further 8.8 percent, meaning roughly 40 percent of everyone in Singapore is not a citizen.
4. Is Singapore’s population aging?
Yes, rapidly. The share of Singapore citizens aged 65 and older rose from 13.1 percent in 2015 to 20.7 percent in 2025, and is projected to reach approximately 23.9 percent by 2030, a threshold associated with a super-aged society.
5. Why is Singapore’s fertility rate low?
Singapore’s total fertility rate stood at 0.97 in 2024, attributed by demographic researchers to delayed marriage, at a median age of 30.8 for grooms and 29.1 for brides, alongside high education and career priorities among women and the high cost of raising children in a dense, expensive urban environment.
6. How does immigration affect Singapore’s population?
Immigration is central to Singapore’s population strategy. Because citizen births alone cannot sustain the population, all new citizens come from the existing permanent resident pool, with the government granting roughly 22,766 new citizenships and 35,264 new permanent residencies in 2024, alongside a much larger non-resident workforce managed separately according to labor demand.
7. How much land does Singapore have?
Singapore’s total land area is approximately 736 to 744 square kilometers as of the mid-2020s, having grown from roughly 582 square kilometers in the 1960s through ongoing land reclamation projects.
8. Will Singapore’s population grow?
Singapore’s population grew 1.2 percent between June 2024 and June 2025, driven mainly by non-resident inflows tied to specific labor and infrastructure needs such as Changi Airport Terminal 5 construction, while citizen population growth remains slow and dependent on naturalization rather than fertility, which stood at just 0.97 in 2024.
Sources
- Singapore Department of Statistics (SingStat), Population Trends 2025.
- National Population and Talent Division (NPTD), Population in Brief 2025.
- Singapore Department of Statistics, Overall Population data tables, population.gov.sg.
- Urban Redevelopment Authority, Planning Areas of Singapore population and area data.
- World Bank Open Data, Population Density (Singapore), 2023.
- Seasia.co, land area compilation from Department of Statistics Singapore, 2025.
