| Secondary dwellings in buildings destined mainly for dwellings according to year of construction of the building (grouped) by size of municipality. 42-Soria | 
| TOTAL | Before 1900 | 1900-1920 | 1921-1940 | 1941-1950 | 1951-1960 | 1961-1970 | 1971-1980 | 1981-1990 | 1991-2001 | |
| TOTAL | 20753 | 4896 | 2363 | 1383 | 973 | 1583 | 1464 | 3028 | 2362 | 2701 | 
| Less than 101 inhabitants | 2938 | 1458 | 303 | 216 | 167 | 201 | 92 | 164 | 211 | 126 | 
| From 101 to 500 inhabitants | 6588 | 1793 | 1116 | 621 | 416 | 453 | 348 | 643 | 728 | 470 | 
| From 501 to 1.000 inhabitants | 2298 | 640 | 303 | 133 | 116 | 258 | 185 | 205 | 184 | 274 | 
| From 1.001 to 2.000 inhabitants | 1974 | 650 | 501 | 247 | 67 | 150 | 42 | 97 | 150 | 70 | 
| From 2.001 to 5.000 inhabitants | 2454 | 295 | 83 | 58 | 110 | 172 | 232 | 636 | 427 | 441 | 
| From 5.001 to 10.000 inhabitants | 311 | 1 | 0 | 4 | 4 | 14 | 22 | 141 | 41 | 84 | 
| From 20.001 to 50.000 inhabitants | 4190 | 59 | 57 | 104 | 93 | 335 | 543 | 1142 | 621 | 1236 |