is a railway station in the town of Nagiso, Nagano Prefecture, Japan, operated by Central Japan Railway Company (JR TÃ Âkai).
Tadachi Station is served by the JR Tà Âkai Chà «à  Main Line, and is located 304.3 kilometers from the official starting point of the line at and 92.6 kilometers from .
The station has two opposed ground-level side platforms connected by a footbridge. The station is unattended.
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Tadachi Station began as "Tadachi Signal Stop" on 3 December 1929. It was elevated to a full passenger station on 1 September 1948. On 25 May 1973, the station was relocated to its present address, 150 meters in the direction of Sakashita Station from its original location. On 1 April 1987, it became part of JR TÃ Âkai.
In fiscal 2014, the station was used by an average of 524 passengers daily (boarding passengers only).