| Region | Grade II & II roads, length in km | Rank | Grade I roads, length in km | Grade I, II & II totals, length in km | Rank |
|---|---|---|---|---|---|
| Total CR | 49,010 | 6,627 | 55,637 | ||
| Central Bohemia | 8,645 | 1 | 942 | 9,587 | 1 |
| Southern Bohemia | 5,475 | 2 | 708 | 6,183 | 2 |
| Pilsen | 4,602 | 3 | 456 | 5,058 | 3 |
| Vysočina | 4,579 | 4 | 422 | 5,001 | 4 |
| Southern Moravia | 4,024 | 5 | 448 | 4,472 | 5 |
| Ústí | 3,673 | 6 | 581 | 4,254 | 6 |
| Hradec Králové | 3,333 | 7 | 346 | 3,679 | 7 |
| Pardubice | 3,162 | 8 | 458 | 3,620 | 8 |
| Olomouc | 3,130 | 9 | 391 | 3,521 | 9 |
| Moravia-Silesia | 2,651 | 10 | 760 | 2,727 | 10 |
| Liberec | 2,111 | 11 | 371 | 2,482 | 11 |
| Karlovy Vary | 1,841 | 12 | 312 | 2,153 | 12 |
| Zlín | 1,787 | 13 | 342 | 2,129 | 13 |