Table
| 2018 | Change in per cent | ||||
|---|---|---|---|---|---|
| 2017 - 2018 | 2013 - 2018 | 2008 - 2018 | 1998 - 2018 | ||
| 11 January 2018 the counties Sør-Trøndelag and Nord-Trøndelag were merged to one county Trøndelag. | |||||
| Østfold | 295 420 | 0.9 | 4.8 | 11.3 | 21.3 |
| Akershus | 614 026 | 1.6 | 8.4 | 18.4 | 35.4 |
| Oslo | 673 469 | 1.0 | 7.9 | 20.2 | 34.8 |
| Hedmark | 196 966 | 0.4 | 1.7 | 4.1 | 5.8 |
| Oppland | 189 870 | 0.2 | 1.4 | 3.4 | 4.2 |
| Buskerud | 281 769 | 0.7 | 4.7 | 12.2 | 20.9 |
| Vestfold | 249 058 | 0.8 | 4.3 | 10.0 | 19.3 |
| Telemark | 173 391 | 0.0 | 1.5 | 4.0 | 5.8 |
| Aust-Agder | 117 222 | 0.5 | 3.9 | 10.5 | 15.9 |
| Vest-Agder | 186 532 | 1.3 | 5.8 | 12.4 | 22.3 |
| Rogaland | 473 526 | 0.3 | 4.7 | 14.7 | 30.0 |
| Hordaland | 522 539 | 0.5 | 4.9 | 12.9 | 21.9 |
| Sogn og Fjordane | 110 230 | 0.0 | 1.4 | 3.7 | 2.3 |
| Møre og Romsdal | 266 856 | 0.2 | 2.9 | 8.1 | 10.3 |
| Trøndelag1 | 458 744 | . | . | . | . |
| Sør-Trøndelag1 | 0 | -100.0 | -100.0 | -100.0 | -100.0 |
| Nord-Trøndelag1 | 0 | -100.0 | -100.0 | -100.0 | -100.0 |
| Nordland | 243 335 | 0.2 | 1.6 | 3.5 | 1.7 |
| Troms - Romsa | 166 499 | 0.5 | 3.8 | 7.7 | 10.8 |
| Finnmark - Finnmárku | 76 167 | 0.0 | 2.2 | 5.2 | 1.7 |