Conwy is a Welsh Unitary Authority.
| Year | All Motor Vehicles | Cars and Taxis | Road Network Total Length |
|---|---|---|---|
| 2000 | 604,900,000 | 488,500,000 | 999.2 miles (1,608.1 km) |
| 2001 | 613,500,000 | 495,800,000 | 1,000.5 miles (1,610.1 km) |
| 2002 | 653,100,000 | 529,700,000 | 1,001.8 miles (1,612.3 km) |
| 2003 | 663,500,000 | 531,000,000 | 1,003.3 miles (1,614.6 km) |
| 2004 | 677,000,000 | 540,700,000 | 1,005.8 miles (1,618.6 km) |
| 2005 | 664,100,000 | 526,800,000 | 1,006.2 miles (1,619.3 km) |
| 2006 | 693,700,000 | 548,400,000 | 1,045.1 miles (1,681.9 km) |
| 2007 | 699,700,000 | 545,700,000 | 1,044.1 miles (1,680.3 km) |
| 2008 | 703,100,000 | 553,400,000 | 1,043.0 miles (1,678.6 km) |
| 2009 | 700,600,000 | 553,800,000 | 1,032.6 miles (1,661.8 km) |
| 2010 | 698,700,000 | 553,200,000 | 1,027.6 miles (1,653.7 km) |
| 2011 | 676,900,000 | 533,400,000 | 1,026.3 miles (1,651.7 km) |
| 2012 | 678,500,000 | 534,400,000 | 1,026.9 miles (1,652.6 km) |
| 2013 | 685,600,000 | 540,600,000 | 1,027.2 miles (1,653.1 km) |
| 2014 | 709,000,000 | 558,600,000 | 1,025.3 miles (1,650.1 km) |
| 2015 | 716,100,000 | 562,300,000 | 1,029.0 miles (1,656.1 km) |
| 2016 | 775,600,000 | 609,100,000 | 1,030.4 miles (1,658.3 km) |
| 2017 | 795,900,000 | 622,700,000 | 1,027.9 miles (1,654.2 km) |
| 2018 | 810,400,000 | 631,000,000 | 1,023.9 miles (1,647.8 km) |
| 2019 | 813,900,000 | 634,700,000 | 1,024.1 miles (1,648.1 km) |
| 2020 | 581,200,000 | 425,300,000 | 1,024.2 miles (1,648.3 km) |
| 2021 | 684,300,000 | 503,900,000 | 1,022.9 miles (1,646.3 km) |
| 2022 | 800,600,000 | 612,300,000 | 1,024.7 miles (1,649.1 km) |
| 2023 | 792,200,000 | 607,800,000 | 1,025.5 miles (1,650.4 km) |