New Zealand population trends since 1970: What the numbers show

New Zealand has experienced significant population growth since 1970. The total population has risen from around 2.82 million to over 5.2 million today, an increase of roughly 85 percent. A common question asked is, has the European population has remained stable while immigration has driven all the growth.
The European (or Pākehā) population, measured by total response ethnicity, has grown in absolute numbers over this period. However, this growth has been much slower than that of the overall population. As a result, the European share of the total population has declined steadily.Here is a clear visualisation of these trends:

Chart: New Zealand Population Change – Total versus European (1970 to 2023)

• The blue line shows the total population of New Zealand in millions. It demonstrates steady and accelerating growth, particularly after the 1990s.
• The green line represents the European or European/Other population (including those identifying as “New Zealander”). This group has increased from roughly 2.5 to 2.7 million in the 1970s and 1980s to approximately 3.38 million in 2023.
• The red dashed line tracks the European percentage of the total population. It has fallen from around 86 to 90 percent in the early period to about 68 percent in recent censuses.

Why Has This Happened?

Two main factors explain the pattern. First, natural population increase differs across groups. Europeans have lower fertility rates, generally below the replacement level, and an older age structure on average. In contrast, Māori and Pasifika populations have experienced stronger natural growth through higher fertility, although these rates have also declined over time.
Second, immigration policy changes since the 1980s and 1990s have played a major role. Net migration has become a primary driver of overall population growth, with large inflows from Asia, the Pacific and other regions. The Asian population in particular has grown rapidly from a small base to around 17 percent of the total by 2023.
Official Stats NZ data confirm that the absolute number of people identifying with European ethnicity has risen by several hundred thousand since the 1970s. Yet because the total population has expanded much faster, the proportion has decreased. Projections suggest the European or Other group will remain roughly stable or grow only modestly in the coming decades, while the total population continues to increase. This points to a further decline in its relative share.

What Does This Mean?

These trends reflect broader patterns seen in many developed countries. Immigration and differential birth rates have transformed the demographic composition of New Zealand. The European population is not static, but its growth has been modest compared with the rapid expansion driven by new arrivals and higher natural increase in other groups.
For those interested in the detailed figures, the best sources remain the official Statistics New Zealand census reports. Ethnic identification allows multiple responses, so percentages do not always add to 100 percent, and classifications have evolved slightly over the decades. Even so, the overall direction is clear from consistent census data.