Halton is an English Unitary Authority.
| Year | All Motor Vehicles | Cars and Taxis | Road Network Total Length |
|---|---|---|---|
| 2000 | 585,500,000 | 482,700,000 | 344.3 miles (554.2 km) |
| 2001 | 582,400,000 | 476,700,000 | 345.1 miles (555.5 km) |
| 2002 | 591,100,000 | 484,600,000 | 344.2 miles (554.0 km) |
| 2003 | 611,500,000 | 496,300,000 | 345.1 miles (555.3 km) |
| 2004 | 611,500,000 | 493,200,000 | 348.2 miles (560.4 km) |
| 2005 | 607,100,000 | 489,400,000 | 350.4 miles (564.0 km) |
| 2006 | 616,900,000 | 499,800,000 | 353.0 miles (568.1 km) |
| 2007 | 621,600,000 | 498,800,000 | 353.2 miles (568.4 km) |
| 2008 | 613,700,000 | 495,900,000 | 355.6 miles (572.3 km) |
| 2009 | 610,900,000 | 495,700,000 | 358.8 miles (577.5 km) |
| 2010 | 595,900,000 | 480,100,000 | 357.9 miles (575.9 km) |
| 2011 | 604,900,000 | 489,000,000 | 357.6 miles (575.5 km) |
| 2012 | 612,000,000 | 495,000,000 | 359.0 miles (577.7 km) |
| 2013 | 613,100,000 | 493,500,000 | 359.7 miles (578.9 km) |
| 2014 | 629,400,000 | 504,800,000 | 360.8 miles (580.6 km) |
| 2015 | 637,400,000 | 506,600,000 | 362.0 miles (582.6 km) |
| 2016 | 638,100,000 | 504,500,000 | 363.5 miles (585.1 km) |
| 2017 | 623,400,000 | 492,500,000 | 364.6 miles (586.8 km) |
| 2018 | 681,000,000 | 532,600,000 | 369.6 miles (594.8 km) |
| 2019 | 689,100,000 | 541,600,000 | 368.3 miles (592.7 km) |
| 2020 | 553,100,000 | 418,900,000 | 369.7 miles (594.9 km) |
| 2021 | 589,300,000 | 447,500,000 | 369.5 miles (594.7 km) |
| 2022 | 639,000,000 | 495,900,000 | 371.5 miles (597.9 km) |
| 2023 | 634,000,000 | 495,600,000 | 372.2 miles (599.0 km) |