St Albans covers . It had an estimated population of as of with a population density of people per km2. St Albans had a population of 13,137 at the
2018 New Zealand census, an increase of 369 people (2.9%) since the
2013 census, and an increase of 150 people (1.2%) since the
2006 census. There were 5,448 households, comprising 6,498 males and 6,633 females, giving a sex ratio of 0.98 males per female, with 2,043 people (15.6%) aged under 15 years, 3,231 (24.6%) aged 15 to 29, 6,087 (46.3%) aged 30 to 64, and 1,773 (13.5%) aged 65 or older. Ethnicities were 82.9% European/
Pākehā, 7.0%
Māori, 2.0%
Pasifika, 12.8%
Asian, and 2.9% other ethnicities. People may identify with more than one ethnicity. The percentage of people born overseas was 28.0, compared with 27.1% nationally. Although some people chose not to answer the census's question about religious affiliation, 50.6% had no religion, 36.7% were
Christian, 0.2% had
Māori religious beliefs, 2.2% were
Hindu, 0.8% were
Muslim, 1.2% were
Buddhist and 3.6% had other religions. Of those at least 15 years old, 3,894 (35.1%) people had a bachelor's or higher degree, and 1,098 (9.9%) people had no formal qualifications. 2,622 people (23.6%) earned over $70,000 compared to 17.2% nationally. The employment status of those at least 15 was that 6,387 (57.6%) people were employed full-time, 1,638 (14.8%) were part-time, and 324 (2.9%) were unemployed. ==Community facilities==