| 19. POPULATION AGED 15 AND OVER, BY AGE, SEX AND MARITAL STATUS, BY TOWNS/MUNICIPALITIES, CENSUS 2001 |
| Total | Male | Female | |||||||||||
| Total | Single | Married | Widower | Divorced | Unknown | Total | Single | Married | Widow | Divorced | Unknown | ||
| Municipality Kostrena | 3.363 | 1.657 | 552 | 1.014 | 35 | 54 | 2 | 1.706 | 373 | 1.024 | 232 | 77 | - |
| 15-19 | 250 | 136 | 136 | - | - | - | - | 114 | 113 | 1 | - | - | - |
| 20-24 | 300 | 158 | 150 | 8 | - | - | - | 142 | 119 | 23 | - | - | - |
| 25-29 | 289 | 151 | 111 | 38 | - | 2 | - | 138 | 66 | 66 | - | 6 | - |
| 30-34 | 278 | 149 | 59 | 87 | - | 3 | - | 129 | 25 | 98 | 1 | 5 | - |
| 35-39 | 248 | 117 | 21 | 94 | - | 2 | - | 131 | 16 | 110 | - | 5 | - |
| 40-44 | 324 | 153 | 24 | 120 | - | 9 | - | 171 | 5 | 153 | 7 | 6 | - |
| 45-49 | 339 | 176 | 14 | 147 | 2 | 13 | - | 163 | 5 | 135 | 7 | 16 | - |
| 50-54 | 357 | 175 | 12 | 151 | 3 | 9 | - | 182 | 4 | 148 | 17 | 13 | - |
| 55-59 | 214 | 109 | 4 | 98 | 1 | 6 | - | 105 | 1 | 80 | 19 | 5 | - |
| 60-64 | 227 | 105 | 5 | 88 | 5 | 7 | - | 122 | - | 89 | 25 | 8 | - |
| 65-69 | 196 | 108 | 8 | 90 | 10 | - | - | 88 | 2 | 54 | 29 | 3 | - |
| 70-74 | 147 | 59 | 4 | 46 | 6 | 2 | 1 | 88 | 7 | 42 | 34 | 5 | - |
| 75-79 | 87 | 29 | - | 25 | 4 | - | - | 58 | 5 | 10 | 41 | 2 | - |
| 80-84 | 47 | 16 | 1 | 13 | 1 | 1 | - | 31 | - | 3 | 26 | 2 | - |
| 85 and over | 41 | 8 | 1 | 4 | 3 | - | - | 33 | 3 | 3 | 26 | 1 | - |
| Unknown | 19 | 8 | 2 | 5 | - | - | 1 | 11 | 2 | 9 | - | - | - |