upright=1.2|thumb|Sabo Kaikan (main hall) in Hirakawachō 2-chōme
upright=1.2|thumb|Sabo Kaikan (main hall) in Hirakawachō 2-chōme
is a district of Chiyoda, Tokyo, Japan, consisting of 1-chōme and 2-chōme. As of March 1, 2025, its population is 2,060 (1,154 households). Hirakawachō's postal code is 102-0093.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).