Westmorland covers 5.56 km2 (2.15 sq mi).[1] It had an estimated population of 2,910 as of June 2025,[2] with a population density of 523 people per km2.
Historical population| Year | | |
|---|
| 2006 | 1,674 | — |
|---|
| 2013 | 1,932 | +2.07% |
|---|
| 2018 | 2,196 | +2.59% |
|---|
| Source: [4] |
Westmorland had a population of 2,196 at the 2018 New Zealand census, an increase of 264 people (13.7%) since the 2013 census, and an increase of 522 people (31.2%) since the 2006 census. There were 780 households, comprising 1,101 males and 1,092 females, giving a sex ratio of 1.01 males per female. The median age was 46.7 years (compared with 37.4 years nationally), with 393 people (17.9%) aged under 15 years, 330 (15.0%) aged 15 to 29, 1,089 (49.6%) aged 30 to 64, and 384 (17.5%) aged 65 or older.
Ethnicities were 90.4% European/Pākehā, 5.2% Māori, 0.7% Pasifika, 7.0% Asian, and 2.5% other ethnicities. People may identify with more than one ethnicity.
The percentage of people born overseas was 20.5, compared with 27.1% nationally.
Although some people chose not to answer the census's question about religious affiliation, 51.2% had no religion, 41.4% were Christian, 0.3% were Hindu, 0.7% were Muslim, 0.7% were Buddhist and 0.8% had other religions.
Of those at least 15 years old, 633 (35.1%) people had a bachelor's or higher degree, and 162 (9.0%) people had no formal qualifications. The median income was $45,600, compared with $31,800 nationally. 576 people (31.9%) earned over $70,000 compared to 17.2% nationally. The employment status of those at least 15 was that 900 (49.9%) people were employed full-time, 366 (20.3%) were part-time, and 48 (2.7%) were unemployed.[4]