St Johns Hill covers 2.25 km2 (0.87 sq mi)[1] and had an estimated population of 3,360 as of June 2024,[2] with a population density of 1,493 people per km2.
St Johns Hill had a population of 3,375 at the 2018 New Zealand census, an increase of 231 people (7.3%) since the 2013 census, and an increase of 279 people (9.0%) since the 2006 census. There were 1,386 households, comprising 1,497 males and 1,878 females, giving a sex ratio of 0.8 males per female, with 525 people (15.6%) aged under 15 years, 405 (12.0%) aged 15 to 29, 1,371 (40.6%) aged 30 to 64, and 1,074 (31.8%) aged 65 or older.
Ethnicities were 88.4% European/Pākehā, 10.0% Māori, 1.5% Pacific peoples, 5.2% Asian, and 2.3% other ethnicities. People may identify with more than one ethnicity.
The percentage of people born overseas was 18.6, compared with 27.1% nationally.
Although some people chose not to answer the census's question about religious affiliation, 40.5% had no religion, 48.8% were Christian, 0.8% had Māori religious beliefs, 0.7% were Hindu, 0.1% were Muslim, 0.5% were Buddhist and 1.4% had other religions.
Of those at least 15 years old, 630 (22.1%) people had a bachelor's or higher degree, and 528 (18.5%) people had no formal qualifications. 471 people (16.5%) earned over $70,000 compared to 17.2% nationally. The employment status of those at least 15 was that 1,137 (39.9%) people were employed full-time, 393 (13.8%) were part-time, and 87 (3.1%) were unemployed.[3]