Territorial organization of Bhutan
Bhutan is divided into four zones (dzongdey) with 20 districts (dzongkhag, singular and plural):
West Zone
2. Chukha District (old pronunciation Chhukha)
5. Haa District
8. Paro District
12. Samtse District (old pronunciation Samchi)
14. Thimphu District
East Zone
6. Lhuntse District (old pronunciation Lhuntshi)
7. Mongar District
9. Pemagatshel District (old pronunciation Pemagatsel)
11. Samdrup Jongkhar District
15. Trashigang District (old pronunciation Tashigang)
16. Trashiyangste District
Central Zone
3. Dagana District
4. Gasa District
10. Punakha District
18. Tsirang District (old pronunciation Chirang)
19. Wangdue Phodrang District (old pronunciation Wangdi Phodrang)
South Zone
1. Bumthang District
13. Sarpang District
17. Trongsa District (old pronunciation Tongsa)
20. Zhemgang District (old pronunciation Shemgang)