| Households with reference person between 40 and 49 years old according to educational level (grades) of the reference person. 33-Asturias |
| TOTAL | Illiterates | Uneducated | Primary education | Secondary education | Higher education | |
| TOTAL | 100,00% | 0,25% | 3,07% | 15,98% | 59,86% | 20,84% |
| 33001-Allande | 100,00% | 0 | 3,10% | 17,05% | 68,22% | 11,63% |
| 33002-Aller | 100,00% | 0,38% | 11,26% | 20,80% | 59,73% | 7,82% |
| 33003-Amieva | 100,00% | 0 | 2,44% | 29,27% | 63,41% | 4,88% |
| 33004-Avilés | 100,00% | 0,27% | 1,66% | 14,78% | 64,32% | 18,97% |
| 33005-Belmonte de Miranda | 100,00% | 0 | 1,96% | 32,35% | 53,92% | 11,76% |
| 33006-Bimenes | 100,00% | 0,78% | 7,03% | 27,34% | 60,16% | 4,69% |
| 33007-Boal | 100,00% | 0 | 14,29% | 46,22% | 32,77% | 6,72% |
| 33008-Cabrales | 100,00% | 0 | 3,75% | 36,88% | 48,13% | 11,25% |
| 33009-Cabranes | 100,00% | 0 | 2,94% | 13,24% | 75,00% | 8,82% |
| 33010-Candamo | 100,00% | 0 | 0,85% | 24,79% | 66,67% | 7,69% |
| 33012-Cangas de Onís | 100,00% | 0 | 14,36% | 19,14% | 55,16% | 11,34% |
| 33011-Cangas del Narcea | 100,00% | 0 | 3,88% | 34,08% | 52,75% | 9,29% |
| 33013-Caravia | 100,00% | 0 | 0 | 31,25% | 50,00% | 18,75% |
| 33014-Carreño | 100,00% | 0,26% | 3,49% | 15,52% | 64,04% | 16,69% |
| 33015-Caso | 100,00% | 0 | 4,10% | 14,75% | 64,75% | 16,39% |
| 33016-Castrillón | 100,00% | 0,22% | 1,54% | 11,59% | 65,24% | 21,42% |
| 33017-Castropol | 100,00% | 0 | 10,78% | 35,34% | 39,22% | 14,66% |
| 33018-Coaña | 100,00% | 0,45% | 0,90% | 36,20% | 47,06% | 15,38% |
| 33019-Colunga | 100,00% | 0,40% | 3,17% | 30,16% | 51,59% | 14,68% |
| 33020-Corvera de Asturias | 100,00% | 0,29% | 3,99% | 23,83% | 65,76% | 6,13% |
| 33021-Cudillero | 100,00% | 0,26% | 11,72% | 24,48% | 55,47% | 8,07% |
| 33022-Degaña | 100,00% | 0 | 2,02% | 31,31% | 59,60% | 7,07% |
| 33023-Franco (El) | 100,00% | 0 | 1,26% | 32,64% | 50,63% | 15,48% |
| 33024-Gijón | 100,00% | 0,28% | 2,43% | 13,14% | 61,45% | 22,70% |
| 33025-Gozón | 100,00% | 0,13% | 0,80% | 10,13% | 69,60% | 19,33% |
| 33026-Grado | 100,00% | 0,14% | 4,56% | 11,40% | 68,66% | 15,24% |
| 33027-Grandas de Salime | 100,00% | 0 | 5,63% | 29,58% | 53,52% | 11,27% |
| 33028-Ibias | 100,00% | 0 | 13,89% | 36,11% | 46,30% | 3,70% |
| 33029-Illano | 100,00% | 0 | 4,00% | 72,00% | 8,00% | 16,00% |
| 33030-Illas | 100,00% | 0 | 1,61% | 45,16% | 45,16% | 8,06% |
| 33031-Langreo | 100,00% | 0,40% | 4,40% | 18,96% | 63,42% | 12,82% |
| 33032-Laviana | 100,00% | 0,18% | 4,53% | 19,47% | 66,21% | 9,60% |
| 33033-Lena | 100,00% | 0 | 2,82% | 20,53% | 66,57% | 10,08% |
| 33035-Llanera | 100,00% | 0,30% | 4,24% | 12,53% | 60,81% | 22,12% |
| 33036-Llanes | 100,00% | 0,71% | 6,52% | 21,45% | 55,57% | 15,76% |
| 33037-Mieres | 100,00% | 0,34% | 3,84% | 19,71% | 62,30% | 13,80% |
| 33038-Morcín | 100,00% | 0 | 8,61% | 7,18% | 72,25% | 11,96% |
| 33039-Muros de Nalón | 100,00% | 0,74% | 8,82% | 38,97% | 46,32% | 5,15% |
| 33040-Nava | 100,00% | 0,25% | 4,53% | 26,20% | 58,94% | 10,08% |
| 33041-Navia | 100,00% | 0 | 0,46% | 19,08% | 58,31% | 22,15% |
| 33042-Noreña | 100,00% | 0 | 1,15% | 10,37% | 62,82% | 25,65% |
| 33043-Onís | 100,00% | 0 | 30,91% | 14,55% | 50,91% | 3,64% |
| 33044-Oviedo | 100,00% | 0,19% | 1,39% | 9,61% | 54,34% | 34,47% |
| 33045-Parres | 100,00% | 0 | 1,71% | 16,00% | 67,43% | 14,86% |
| 33048-Pesoz | 100,00% | 0 | 0 | 12,50% | 87,50% | 0 |
| 33046-Peñamellera Alta | 100,00% | 0 | 5,88% | 29,41% | 47,06% | 17,65% |
| 33047-Peñamellera Baja | 100,00% | 0 | 9,88% | 53,09% | 27,16% | 9,88% |
| 33049-Piloña | 100,00% | 0 | 6,22% | 25,96% | 54,48% | 13,35% |
| 33050-Ponga | 100,00% | 0 | 2,08% | 43,75% | 45,83% | 8,33% |
| 33051-Pravia | 100,00% | 0 | 5,49% | 18,97% | 64,06% | 11,48% |
| 33052-Proaza | 100,00% | 0 | 0 | 27,45% | 54,90% | 17,65% |
| 33053-Quirós | 100,00% | 0,93% | 4,63% | 39,81% | 42,59% | 12,04% |
| 33054-Regueras (Las) | 100,00% | 0 | 0 | 10,53% | 78,07% | 11,40% |
| 33055-Ribadedeva | 100,00% | 0 | 1,63% | 27,64% | 59,35% | 11,38% |
| 33056-Ribadesella | 100,00% | 0 | 0 | 32,21% | 52,88% | 14,90% |
| 33057-Ribera de Arriba | 100,00% | 3,01% | 6,02% | 13,53% | 57,89% | 19,55% |
| 33058-Riosa | 100,00% | 0 | 0 | 21,64% | 68,42% | 9,94% |
| 33059-Salas | 100,00% | 0,28% | 2,25% | 30,06% | 53,93% | 13,48% |
| 33061-San Martín de Oscos | 100,00% | 0 | 4,00% | 60,00% | 36,00% | 0 |
| 33060-San Martín del Rey Aurelio | 100,00% | 0,36% | 4,54% | 17,19% | 69,67% | 8,23% |
| 33063-San Tirso de Abres | 100,00% | 0 | 16,67% | 30,00% | 50,00% | 3,33% |
| 33062-Santa Eulalia de Oscos | 100,00% | 0 | 6,25% | 37,50% | 43,75% | 12,50% |
| 33064-Santo Adriano | 100,00% | 0 | 0 | 0 | 91,30% | 8,70% |
| 33065-Sariego | 100,00% | 1,16% | 1,16% | 27,91% | 61,63% | 8,14% |
| 33066-Siero | 100,00% | 0,24% | 3,43% | 16,10% | 60,52% | 19,71% |
| 33067-Sobrescobio | 100,00% | 0 | 0 | 17,19% | 65,63% | 17,19% |
| 33068-Somiedo | 100,00% | 0 | 1,39% | 12,50% | 68,06% | 18,06% |
| 33069-Soto del Barco | 100,00% | 0,67% | 2,69% | 21,55% | 65,99% | 9,09% |
| 33070-Tapia de Casariego | 100,00% | 0,39% | 3,86% | 27,41% | 52,90% | 15,44% |
| 33071-Taramundi | 100,00% | 0 | 6,98% | 41,86% | 39,53% | 11,63% |
| 33072-Teverga | 100,00% | 0 | 30,83% | 31,58% | 30,08% | 7,52% |
| 33073-Tineo | 100,00% | 0 | 9,59% | 35,41% | 46,08% | 8,92% |
| 33034-Valdés | 100,00% | 0,35% | 2,31% | 23,09% | 59,47% | 14,78% |
| 33074-Vegadeo | 100,00% | 0 | 0,69% | 35,05% | 45,02% | 19,24% |
| 33075-Villanueva de Oscos | 100,00% | 5,26% | 5,26% | 15,79% | 68,42% | 5,26% |
| 33076-Villaviciosa | 100,00% | 0,32% | 4,11% | 18,83% | 60,93% | 15,80% |
| 33077-Villayón | 100,00% | 0 | 33,01% | 22,33% | 36,89% | 7,77% |
| 33078-Yernes y Tameza | 100,00% | 0 | 0 | 50,00% | 50,00% | 0 |