tˈiː ɹˈɑːpə hæd ɐ pˌɑːpjʊlˈeɪʃən ʌv tˈuːhˈʌndɹɪd nˈaɪnti fˈoːɹ æt ðə tˈuː θˈaʊzənd ˈeɪtiːn nˈuː zˈiːlənd sˈɛnsəs, ɐ dˈiːkɹiːs ʌv twˈɛlv pˈiːpəl mˈaɪnəs θɹˈiː.nˈaɪn pɚsˈɛnt sˈɪns ðə tˈuː θˈaʊzənd θˈɜːtiːn sˈɛnsəs, ænd ɐ dˈiːkɹiːs ʌv θˈɜːɾi θɹˈiː pˈiːpəl mˈaɪnəs tˈɛn.wˈʌn pɚsˈɛnt sˈɪns ðə tˈuː θˈaʊzənd sˈɪks sˈɛnsəs.
Te Rapa had a population of 294 at the 2018 New Zealand census, a decrease of 12 people (−3.9%) since the 2013 census, and a decrease of 33 people (−10.1%) since the 2006 census.