ðɪ ˈɛɹiə ʌv tsˈuːbɐkˌɪmɐɹˌaɪ wʌzɐ ɹˈʊɹɹəl ɹˈiːdʒən ʌv tsuːkjˈuːbə dˈɪstɹɪkt ʌv hɪtˈætʃi pɹˈɑːvɪns nˈoʊɾᵻd æz ɐ mˈeɪdʒɚ ɹˈaɪsɡɹˈoʊɪŋ ɹˈiːdʒən, wɪððɪ ɛksˈɛpʃən əvə smˈɔːl pˈoːɹʃən ɪnðə sˈaʊθ, wˌɪtʃ bᵻlˈɔŋd tə kˌɪɾɐsˈoʊmə dˈɪstɹɪkt ʌv ʃɪmˈoʊsə pɹˈɑːvɪns.
The area of Tsubakimarai was a rural region of Tsukuba District of Hitachi Province noted as a major rice-growing region, with the exception of a small portion in the south, which belonged to Kitasōma District of Shimōsa Province.