Kairaki is a small rural community in the Waimakariri District, New Zealand.

The New Zealand Ministry for Culture and Heritage gives a translation of "sky eater" for Kairaki.

Kairaki covers 0.88 km (0.34 sq mi). It is part of the larger Pegasus Bay statistical area.

Historical population

Year	Pop.	±% p.a.
2006	225	—
2013	132	−7.34%
2018	129	−0.46%
Source:

Kairaki had a population of 129 at the 2018 New Zealand census, a decrease of 3 people (−2.3%) since the 2013 census, and a decrease of 96 people (−42.7%) since the 2006 census. There were 66 households, comprising 72 males and 57 females, giving a sex ratio of 1.26 males per female. The median age was 60.0 years (compared with 37.4 years nationally), with 6 people (4.7%) aged under 15 years, 9 (7.0%) aged 15 to 29, 66 (51.2%) aged 30 to 64, and 51 (39.5%) aged 65 or older.

Ethnicities were 95.3% European/Pākehā, 7.0% Māori, 2.3% Pasifika, and 2.3% Asian. People may identify with more than one ethnicity.

Although some people chose not to answer the census's question about religious affiliation, 62.8% had no religion, 30.2% were Christian, and 2.3% were Muslim.

Of those at least 15 years old, 9 (7.3%) people had a bachelor's or higher degree, and 51 (41.5%) people had no formal qualifications. The median income was $22,600, compared with $31,800 nationally. 9 people (7.3%) earned over $70,000 compared to 17.2% nationally. The employment status of those at least 15 was that 48 (39.0%) people were employed full-time, 18 (14.6%) were part-time, and 3 (2.4%) were unemployed.

The average temperature in summer is 16.2 °C, and in winter is 6.4 °C.

Month	Normal temperature
January	16.7 °C
February	16.3 °C
March	15.0 °C
April	12.1 °C
May	8.8 °C
June	JUN
July	JUL
August	AUG
September	SEP
October	OCT
November	NOV
December	DEC