The overall results showed arsenic contamination in soil was higher than limit value. The factors related to urinary arsenic level among farmers were gender and occupational. The personal characteristic such as smoking, alcohol drinking, marital status, education level, chemical spraying, and chronic disease had no effect with urinary arsenic level. All residents who are farmer and non-farmer living in high risk area should have knowledge and awareness to protect themselves from arsenic exposure. Especially, the farmers should strictly good perform standard agriculture practice and PPE for reducing the exposure during farming activities.