Spain added more than 100,000 residents in a single quarter, and every one of that net gain came from people born outside the country. The National Statistics Institute, INE, confirmed on August 6, 2026, that Spain’s population reached a record 49,801,559 as of July 1, 2026, while the number of Spanish-born residents actually fell during the same period. Spain is growing faster than at almost any point in its history, and it is growing for a reason that has nothing to do with Spanish births.
Key Findings
- Spain’s population reached a record 49.80 million on July 1, 2026, growing by 104,178 people in a single quarter, with the entirety of that growth attributable to the foreign-born population.
- Spain crossed 10 million foreign-born residents for the first time in early 2026, now approximately 20.7 percent of the total population, up from roughly 4 percent in 2000.
- Spain’s fertility rate, at approximately 1.10 children per woman in 2024, remains one of the lowest in the European Union, meaning natural population change is negative and migration is the sole source of growth.
- Nearly half of Catalonia’s residents aged 30 to 34 were born abroad, illustrating how concentrated migration-driven growth is within specific working-age brackets.
- The Valencian Community, Balearic Islands, and Asturias recorded the fastest quarterly regional growth rates in the second quarter of 2026, all above the 0.21 percent national average.
Spain’s Population Has Reached a New High
INE’s Continuous Population Statistics put Spain’s population at 49.80 million on July 1, 2026, up 104,178 people from the first quarter alone and up 444,205 over the preceding twelve months. The milestone came faster than INE itself had anticipated; the agency had previously projected Spain would reach 50 million by 2028, a threshold now within reach as soon as 2026 or 2027 at current growth rates.
Spain’s population has cleared major milestones at an accelerating pace historically: it passed 35 million in 1974, 40 million in 1997, and 45 million in 2007, each gap taking twenty-plus years. The move from 45 million to nearly 50 million has taken under twenty years and shows no sign of slowing, a trajectory shift almost entirely explained by the change in what is driving Spain’s growth.
Why Is Spain’s Population Growing?
The composition of that growth is the real story. During the second quarter of 2026, Spain’s foreign-born population rose by 37,348 people to 10,291,807, while the number of people born in Spain fell by 20,367 to 38,993,162. INE explicitly attributed the entirety of the quarter’s population growth to the rise in foreign-born residents.
As migration researcher Elisa Brey of Complutense University in Madrid put it in coverage of the January 2026 data, “if it weren’t for the arrival of migrants, Spain would lose population,” pointing to a fall of nearly 18,700 Spanish-born babies in late 2025 alone.
Immigration Is Changing Spain’s Population
Spain crossed a symbolic threshold in early 2026: for the first time, more than 10 million residents were born abroad, a figure that reached 10,291,807 by July 2026, or roughly 20.5 percent of the total population, about one in every five residents. As recently as 2000, foreign-born residents made up only about 4 percent of Spain’s population; the share has quintupled in a quarter century.
Spain’s Population Composition, July 2026
| Category | Figure | Share of Total |
|---|---|---|
| Total population | 49,801,559 | 100% |
| Born in Spain | 38,993,162 | 78.3% |
| Born abroad | 10,291,807 | 20.7% |
| Foreign nationals | 7,437,543 | 14.9% |
| Spanish nationals (native and naturalized) | ~42.3 million | ~85% |
The gap between the foreign-born figure (10.3 million) and the foreign-national figure (7.4 million) reflects naturalization: nearly 2.9 million residents born outside Spain have acquired Spanish citizenship, most commonly through years of residency, marriage, or provisions of Spain’s Historical Memory Law extending citizenship to descendants of Spanish emigrants.
The largest nationality groups arriving in Spain in the second quarter of 2026 were Colombian, Venezuelan, and Moroccan citizens. INE’s broader nationality data for early 2025 showed Morocco, Colombia, Romania, Venezuela, and Italy as Spain’s five largest foreign-national groups, with the United Kingdom ranking sixth.
Spain’s Fertility Problem Has Not Disappeared
Spain’s fertility rate stood at approximately 1.10 children per woman as of 2024, among the lowest in the European Union and far below the 2.1 replacement level. Population growth and low fertility are not contradictory in Spain’s case; they simply reflect two separate components of population change operating in opposite directions at the same time.
Natural population change, births minus deaths, remains negative, since Spain’s birth rate of 6.5 per 1,000 population sits well below its death rate of 8.9 per 1,000 as of 2024. Every bit of Spain’s recent growth has come from net migration of 4.1 migrants per 1,000 population, a rate strong enough to overwhelm the natural deficit and then some.
Where Is Spain Growing?
Growth during the second quarter of 2026 was recorded in every Spanish region, though unevenly. The Valencian Community led with growth of 0.43 percent, followed by the Balearic Islands at 0.36 percent and Asturias at 0.29 percent.
Aragón, Castile-La Mancha, and Catalonia each grew above the national average of 0.21 percent for the quarter. Catalonia stands out for the concentration of its foreign-born population, at 26.1 percent, more than five percentage points above the national average, while the Balearic Islands recorded an even higher share at 29.3 percent.
Regional Population Growth, Q2 2026
| Region | Quarterly Growth Rate |
|---|---|
| Valencian Community | 0.43% |
| Balearic Islands | 0.36% |
| Asturias | 0.29% |
| Aragón | 0.28% |
| Castile-La Mancha | 0.28% |
| Catalonia | 0.27% |
| National average | 0.21% |
The Age Structure Behind the Growth
Spain’s foreign-born population is heavily concentrated in prime working-age brackets. Data from Catalonia’s regional statistics office shows the 25 to 44 age range as the group with the highest foreign-born presence, and within that range, the 30 to 34 age group stands out sharply: nearly half, 49.3 percent, of Catalans in that specific age bracket were born abroad. This concentration in working-age brackets means migration is not just adding to Spain’s population total, it is disproportionately reinforcing the working-age segment of the population that Spain’s own low-fertility native cohorts are failing to replace.
Economic and Social Effects
A population growing by over 440,000 people in a single year creates immediate and predictable pressure on housing, schools, and healthcare capacity, particularly in the regions absorbing the largest inflows. At the same time, migration-driven labor force growth has been credited by economists with supporting Spain’s relatively strong recent GDP growth compared with the eurozone average, since a larger working-age population directly expands the labor supply available to Spanish employers at a time when native-born cohorts are shrinking.
Is Spain’s Population Growth Sustainable?
Whether Spain’s current growth trajectory continues depends almost entirely on the continuation of current migration patterns rather than on any recovery in native fertility, which shows no sign of approaching replacement level. INE’s own earlier projections underestimated how quickly Spain would reach the 50 million threshold, a reminder that migration-driven growth can be harder to forecast precisely than fertility-driven growth, since it depends on economic conditions, labor demand, and migration policy that can shift faster than birth rates. What is clear from the trend so far is that Spain’s population growth and Spain’s demographic aging are proceeding simultaneously rather than one canceling out the other: the country is both growing and aging at once.
Conclusion
Spain’s population data for 2026 tells two stories that are both true at once: the country is growing faster than official forecasts predicted, and the population being born within its own borders is shrinking. Immigration has not just added numbers to Spain’s total; it has become the entire mechanism holding population growth positive while native fertility remains among the lowest in Europe. Whether that mechanism keeps working depends less on Spanish family policy than on the economic and migration conditions that keep bringing new residents from Colombia, Venezuela, Morocco, and beyond.
Frequently Asked Questions
1. Why is Spain’s population growing?
Spain’s population growth is driven almost entirely by net migration; the country’s natural population change, births minus deaths, has been negative for years due to a fertility rate around 1.10 children per woman.
2. How many foreign-born people live in Spain?
Spain had 10,291,807 foreign-born residents as of July 1, 2026, approximately 20.7 percent of the total population, according to INE.
3. Is Spain’s population aging despite growth?
Yes. Spain’s fertility rate remains well below replacement level, and the native Spanish-born population is actually shrinking; population growth and demographic aging are occurring at the same time rather than offsetting each other.
4. When will Spain reach 50 million people?
INE had projected Spain would reach 50 million by 2028, but the pace of recent growth suggests the milestone could arrive as early as 2026 or 2027.
5. Which nationalities are driving Spain’s population growth?
Colombian, Venezuelan, and Moroccan nationals were the largest groups arriving in Spain during the second quarter of 2026; Spain’s five largest foreign-national communities overall are Moroccan, Colombian, Romanian, Venezuelan, and Italian.
6. Where in Spain is population growing fastest?
The Valencian Community, Balearic Islands, and Asturias recorded the fastest population growth rates in the second quarter of 2026, all above the 0.21 percent national average.
7. What is the difference between Spain’s foreign-born and foreign-national populations?
Spain had 10.3 million foreign-born residents but only 7.4 million foreign nationals as of mid-2026; the gap reflects roughly 2.9 million residents born abroad who have since acquired Spanish citizenship.
8. Is Spain’s fertility rate improving?
No. Spain’s fertility rate has remained around 1.10 children per woman in recent years, among the lowest in the European Union, with no sign of a sustained recovery toward replacement level.
9. How does migration affect Spain’s age structure?
Foreign-born residents are heavily concentrated in working-age brackets; in Catalonia, nearly half of residents aged 30 to 34 were born abroad, reinforcing the working-age population that low native fertility is failing to replace.
10. Has Spain always been a country of immigration?
No. Spain was a country of net emigration for much of the twentieth century; the foreign-born share of its population rose from about 4 percent in 2000 to over 20 percent by 2026, one of the fastest such transitions recorded in Europe.
Sources
- Instituto Nacional de Estadística (INE), Continuous Population Statistics, Q2 2026 release, August 6, 2026
- INE, population and immigration data, January 2026 release
- Idealista News, “Spain’s population hits a record 49.8 million as foreign residents drive growth,” August 2026
- The Local Spain, “Spain’s population on verge of reaching 50 million,” August 6, 2026
- Murcia Today, “Spain’s Population Hits 49.6 Million With Foreign-born Milestone,” February 2026
- Wikipedia, “Immigration to Spain” and “Demographics of Spain,” citing INE data
