Medium urban area
Blenheim
The 23rd largest urban area or settlement in New Zealand, with an estimated 29,800 residents at 30 June 2025.
Population 2025
29,800
Estimated residents
Change on 2024
-0.3%
29,900 a year earlier
Since 2018
+4.6%
28,500 in 2018
Median age
42.7
Years, 2025
Population, 1996 to 2025
1996 · 22,000+35.5% over 29 years2025 · 29,800
Who lives here
- 0–14 years5,00016.8%
- 15–39 years8,90029.9%
- 40–64 years8,90029.9%
- 65 and over7,10023.8%