The Forty (40) Barangays in the municipality of Bauan
Bauan is politically subdivided into 40 barangays. Barangay San Teodoro was created in 1953 from the sitio of Pook ng Buhangin from Barrio Ilat and the sitio of Cupang from Barrio Gelerang Kawayan. In 1954, the sitio of Jipit in the barrio of San Antonio was converted to the barrio of Sto. Niño, while the sitio of Pook ni Banal in the Barrio of Malaking Pook was converted into the barrio of Pook ni Banal.
The next year, sitio Pinagcurusan in barrio Maricaban and sitio Pinagcurusan in barrio Tingloy were constituted into barrio San Jose, while sitio Pirasan in barrio Payapa was constituted into the barrio of San Juan. In 1956 portions of San Andres and Bolo were separated to form the barrio of San Miguel. The next year, sitio Puting Buhangin of barrio Magalanggalang was converted into barrio Orense. The Forty (40) Barangays in Bauan. To wit;
| 1. Alagao | 16. Inicbulan | 31. San Diego |
| 2. Aplaya | 17. locloc | 32. San Miguel |
| 3. As-is | 18. Magalang-galang | 33. San Pablo |
| 4. Bagong Silang | 19. Malindig | 34. San Pedro |
| 5. Baguilawa | 20. Manalupang | 35. San Roque |
| 6. Balayong | 21. Manghinao Proper | 36. San Teodoro |
| 7. Poblacion I | 22. Manghinao I | 37. San Vicente |
| 8. Poblacion II | 23. New Danglayan | 38. Sta. Maria |
| 9. Poblacion III | 24. Orense | 39. Sto. Domingo |
| 10. Poblacion IV | 25 Pitugo | 40. Sinala |
| 11. Bolo | 26. Rizal | |
| 12. Colvo | 27. Sampaguita | |
| 13. Cupang | 28. San Agustin | |
| 14. Durungao | 29. San Andres Proper | |
| 15. Gulibay | 30. San Andres I |
