You won't find the name Ta Ai on a map of Hsinchu County, for it is an administrative division not of the ROC government, but of the famous Yimin Temple of northern Hsinchu. The Ta Ai area encompasses the three townships of Peipu, Paoshan, and Omei. Yimin Temple commands the allegiance of Hakka faithful in 15 different temple districts, of which the Ta Ai district is one.
大隘是個老地名，早期北埔、寶山和峨眉三鄉並稱大隘，在客家義民廟十五聯庄中屬於同一個祭典區「大隘聯庄」。