{"postcode_type":"area","jis":"10344","old":"37035","new":"3703502","prefecture_kana":"グンマケン","city_kana":"キタグンマグンシントウムラ","suburb_kana":"ヤマコダ","prefecture":"群馬県","city":"北群馬郡榛東村","suburb":"山子田","street_address":null,"office":null,"office_kana":null,"office_roman":null,"post_type":null,"is_separated_suburb":0,"is_koaza":0,"is_chome":0,"is_include_area":0,"status":0,"reason":0,"prefecture_roman":"Gummaken","city_roman":"Kitagummagunshintoumura","suburb_roman":"Yamakoda","handling_post_office":null,"multiple_numbers":null,"created_at":"2026-09-30T08:16:37.000Z","updated_at":"2026-09-30T08:16:37.000Z","url":"https://postcode.teraren.com/postcodes/3703502.json","location":{"latitude":"36.446486","longitude":"138.96697"}}