Pembrokeshire is a Welsh Unitary Authority.
| Year | All Motor Vehicles | Cars and Taxis | Road Network Total Length |
|---|---|---|---|
| 2000 | 601,900,000 | 468,600,000 | 1,596.2 miles (2,568.8 km) |
| 2001 | 595,200,000 | 462,600,000 | 1,597.9 miles (2,571.5 km) |
| 2002 | 615,100,000 | 478,900,000 | 1,600.0 miles (2,574.9 km) |
| 2003 | 625,700,000 | 484,700,000 | 1,602.1 miles (2,578.4 km) |
| 2004 | 628,800,000 | 484,900,000 | 1,599.9 miles (2,574.8 km) |
| 2005 | 641,000,000 | 491,000,000 | 1,625.6 miles (2,616.1 km) |
| 2006 | 663,200,000 | 504,300,000 | 1,631.9 miles (2,626.2 km) |
| 2007 | 665,700,000 | 499,800,000 | 1,634.1 miles (2,629.8 km) |
| 2008 | 675,600,000 | 509,000,000 | 1,634.4 miles (2,630.3 km) |
| 2009 | 668,600,000 | 506,400,000 | 1,629.7 miles (2,622.7 km) |
| 2010 | 657,800,000 | 495,900,000 | 1,628.4 miles (2,620.6 km) |
| 2011 | 652,800,000 | 494,400,000 | 1,629.7 miles (2,622.7 km) |
| 2012 | 652,000,000 | 492,300,000 | 1,632.4 miles (2,627.0 km) |
| 2013 | 657,900,000 | 496,400,000 | 1,633.0 miles (2,628.1 km) |
| 2014 | 679,900,000 | 511,800,000 | 1,633.0 miles (2,628.0 km) |
| 2015 | 685,100,000 | 514,300,000 | 1,633.0 miles (2,628.1 km) |
| 2016 | 723,700,000 | 542,400,000 | 1,630.4 miles (2,623.8 km) |
| 2017 | 724,500,000 | 538,200,000 | 1,626.5 miles (2,617.6 km) |
| 2018 | 729,200,000 | 542,000,000 | 1,621.2 miles (2,609.1 km) |
| 2019 | 740,600,000 | 547,600,000 | 1,621.0 miles (2,608.8 km) |
| 2020 | 565,900,000 | 403,900,000 | 1,620.5 miles (2,608.0 km) |
| 2021 | 627,100,000 | 445,300,000 | 1,613.7 miles (2,597.1 km) |
| 2022 | 694,000,000 | 501,300,000 | 1,616.8 miles (2,602.0 km) |
| 2023 | 701,600,000 | 511,500,000 | 1,617.6 miles (2,603.3 km) |