Demographics
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House for his family by architect Charles Natusch builders C E Daniell
Masterton District covers 2,300.21 km2 (888.12 sq mi) and had an estimated population of 28,900 as of June 2025, with a population density of 13 people per km2. The Masterton urban area covers 22.45 km2 (8.67 sq mi) and had an estimated population of 22,600 as of June 2025, with a population density of 1,007 people per km2.
Historical population for the Masterton DistrictYearPop.±% p.a.199622,755—    200122,614−0.12%200622,623+0.01%201323,352+0.45%201825,557+1.82%202327,678+1.61%Source:
Population density in the 2023 census
Masterton District had a population of 27,678 in the 2023 New Zealand census, an increase of 2,121 people (8.3%) since the 2018 census, and an increase of 4,326 people (18.5%) since the 2013 census. There were 13,401 males, 14,175 females and 102 people of other genders in 10,911 dwellings. 2.7% of people identified as LGBTIQ+. The median age was 42.7 years (compared with 38.1 years nationally). There were 5,127 people (18.5%) aged under 15 years, 4,635 (16.7%) aged 15 to 29, 11,637 (42.0%) aged 30 to 64, and 6,276 (22.7%) aged 65 or older.
People could identify as more than one ethnicity. The results were 83.7% European (Pākehā); 22.6% Māori; 4.6% Pasifika; 5.1% Asian; 0.5% Middle Eastern, Latin American and African New Zealanders (MELAA); and 2.5% other, which includes people giving their ethnicity as "New Zealander". English was spoken by 97.4%, Māori language by 4.7%, Samoan by 1.2% and other languages by 6.3%. No language could be spoken by 1.9% (e.g. too young to talk). New Zealand Sign Language was known by 0.5%. The percentage of people born overseas was 14.7, compared with 28.8% nationally.
Religious affiliations were 32.5% Christian, 0.8% Hindu, 0.4% Islam, 1.2% Māori religious beliefs, 0.4% Buddhist, 0.5% New Age, 0.1% Jewish, and 1.2% other religions. People who answered that they had no religion were 55.5%, and 7.6% of people did not answer the census question.
Of those at least 15 years old, 2,976 (13.2%) people had a bachelor's or higher degree, 12,756 (56.6%) had a post-high school certificate or diploma, and 5,898 (26.2%) people exclusively held high school qualifications. The median income was $37,200, compared with $41,500 nationally. 1,794 people (8.0%) earned over $100,000 compared to 12.1% nationally. The employment status of those at least 15 was that 10,590 (47.0%) people were employed full-time, 3,300 (14.6%) were part-time, and 543 (2.4%) were unemployed.
Urban area[edit]
Masterton's urban area covers 22.45 km2 (8.67 sq mi) and had an estimated population of 22,600 as of June 2025, with a population density of 1,007 people per km2.
Historical population for the Masterton urban areaYearPop.±% p.a.201318,246—    201819,917+1.77%202321,606+1.64%Source:
The urban area had a population of 21,606 in the 2023 New Zealand census, an increase of 1,689 people (8.5%) since the 2018 census, and an increase of 3,360 people (18.4%) since the 2013 census. There were 10,323 males, 11,205 females and 78 people of other genders in 8,631 dwellings. 2.9% of people identified as LGBTIQ+. The median age was 41.3 years (compared with 38.1 years nationally). There were 4,023 people (18.6%) aged under 15 years, 3,810 (17.6%) aged 15 to 29, 8,832 (40.9%) aged 30 to 64, and 4,941 (22.9%) aged 65 or older.
People could identify as more than one ethnicity. The results were 81.0% European (Pākehā); 25.1% Māori; 5.3% Pasifika; 6.1% Asian; 0.5% Middle Eastern, Latin American and African New Zealanders (MELAA); and 2.4% other, which includes people giving their ethnicity as "New Zealander". English was spoken by 97.2%, Māori language by 5.3%, Samoan by 1.5% and other languages by 6.6%. No language could be spoken by 2.0% (e.g. too young to talk). New Zealand Sign Language was known by 0.5%. The percentage of people born overseas was 14.8, compared with 28.8% nationally.
Religious affiliations were 33.1% Christian, 1.0% Hindu, 0.5% Islam, 1.4% Māori religious beliefs, 0.4% Buddhist, 0.5% New Age, 0.1% Jewish, and 1.3% other religions. People who answered that they had no religion were 54.3%, and 7.6% of people did not answer the census question.
Of those at least 15 years old, 2,124 (12.1%) people had a bachelor's or higher degree, 9,903 (56.3%) had a post-high school certificate or diploma, and 4,926 (28.0%) people exclusively held high school qualifications. The median income was $35,800, compared with $41,500 nationally. 1,143 people (6.5%) earned over $100,000 compared to 12.1% nationally. The employment status of those at least 15 was that 8,061 (45.8%) people were employed full-time, 2,406 (13.7%) were part-time, and 459 (2.6%) were unemployed.
