Explore details about location 木更津市. 木更津市 is a location situated within the 千葉県 alongside other areas such as 習志野市, 香取郡, 大網白里市. Additionally, some smaller parts of 木更津市 include specific areas like 館山自動車道 (TATEYAMA EXPRESSWAY), 大鷲木更津線, 東京湾アクアライン (Tokyo Bay Aqua-Line) adding to the diversity of its landscape.