We estimated external and internal effective doses for 15 residents who lived approximately 37 km northwest of the Fukushima Dai-ichi Nuclear Power Plant. The average cumulative effective dose was 8.4 mSv for adults and 5.1 mSv for children. The average committed effective dose from 134Cs and 137Cs was 0.055 mSv for adults and 0.029 mSv for children. The committed effective doses for thyroid gland was 27-66 mSv at maximum.