At the last New Zealand census in 2013, the combined population of the Marlborough and Kaikoura regions was 49,857. The majority of these people are located in the towns of Blenheim, Picton and Kaikoura. Blenheim, which is located on the fertile Wairau Plain, has a population of over 24,000; Picton, at the terminus for the Wellington-Picton ferries, has a population of over 2,500; and the Kaikoura township has a population of 3,555.

Main population centres:  
Blenheim 24,183
Renwick & Woodbourne 2,517
Picton 2,745
Havelock 489
Seddon 507
Kaikoura 3,555

Population mix:  
European 93%
Maori 13%
Pacific Island 1%
Asian & Other 1%

Age mix:
Under 15 20%
15 to 64 64%
65+ 16%

Statistics from Statistics New Zealand
It's a Fact...
SEDDON
The township of Seddon is named after New Zealand's longest serving Prime Minister, Richard John Seddon (1845-1906), sometimes known as "King Dick". He is regarded by some as New Zealand's greatest political leader. He was a strong premier, enforcing his authority with great vigour. Accused by his opponents of being an autocrat, he once stated that "a president is all we require", and that Cabinet could be abolished.
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