Similar to 望陀郡
海上郡
Kaijō District, Chiba
葛飾郡
下埴生郡
匝瑳郡
Sōsa District, Chiba
相馬郡 (下総国)
千葉郡
Chiba District, Chiba
長狭郡
Nagasa District, Chiba
東葛飾郡
Higashi-Katsushika District, Chiba
平郡
Hei District, Chiba南相馬郡
Minamisōma District, Chiba
Template:房総三国の郡
夷隅郡
Isumi District
埴生郡