Waipara is described by Statistics New Zealand as a rural settlement and covers . It had an estimated population of as of with a population density of people per km2. Waipara is part of the larger
Omihi statistical area. Waipara had a population of 312 at the
2018 New Zealand census, an increase of 45 people (16.9%) since the
2013 census, and an increase of 54 people (20.9%) since the
2006 census. There were 117 households, comprising 165 males and 150 females, giving a sex ratio of 1.1 males per female, with 66 people (21.2%) aged under 15 years, 42 (13.5%) aged 15 to 29, 153 (49.0%) aged 30 to 64, and 57 (18.3%) aged 65 or older. Ethnicities were 94.2% European/
Pākehā, 7.7%
Māori, and 2.9% other ethnicities. People may identify with more than one ethnicity. Although some people chose not to answer the census's question about religious affiliation, 69.2% had no religion, and 20.2% were
Christian. Of those at least 15 years old, 15 (6.1%) people had a bachelor's or higher degree, and 72 (29.3%) people had no formal qualifications. 27 people (11.0%) earned over $70,000 compared to 17.2% nationally. The employment status of those at least 15 was that 141 (57.3%) people were employed full-time, 39 (15.9%) were part-time, and 6 (2.4%) were unemployed. ==Education==