County Durham is an English Unitary Authority. It was created in April 2009.
| Year | All Motor Vehicles | Cars and Taxis | Road Network Total Length |
|---|---|---|---|
| 2000 | 2,239,500,000 | 1,764,600,000 | 2,342.5 miles (3,769.8 km) |
| 2001 | 2,251,900,000 | 1,774,700,000 | 2,346.4 miles (3,776.2 km) |
| 2002 | 2,301,900,000 | 1,813,600,000 | 2,350.2 miles (3,782.3 km) |
| 2003 | 2,318,500,000 | 1,817,600,000 | 2,354.2 miles (3,788.6 km) |
| 2004 | 2,334,900,000 | 1,823,300,000 | 2,233.6 miles (3,594.7 km) |
| 2005 | 2,332,800,000 | 1,820,600,000 | 2,240.9 miles (3,606.3 km) |
| 2006 | 2,378,400,000 | 1,855,000,000 | 2,264.1 miles (3,643.7 km) |
| 2007 | 2,442,700,000 | 1,890,800,000 | 2,260.7 miles (3,638.3 km) |
| 2008 | 2,412,800,000 | 1,866,200,000 | 2,267.9 miles (3,649.8 km) |
| 2009 | 2,378,500,000 | 1,853,900,000 | 2,278.6 miles (3,667.1 km) |
| 2010 | 2,355,100,000 | 1,829,500,000 | 2,280.3 miles (3,669.8 km) |
| 2011 | 2,365,300,000 | 1,839,500,000 | 2,279.2 miles (3,668.0 km) |
| 2012 | 2,394,400,000 | 1,869,700,000 | 2,285.3 miles (3,677.9 km) |
| 2013 | 2,404,300,000 | 1,871,500,000 | 2,289.1 miles (3,684.0 km) |
| 2014 | 2,474,500,000 | 1,919,200,000 | 2,293.1 miles (3,690.4 km) |
| 2015 | 2,541,700,000 | 1,962,500,000 | 2,295.9 miles (3,694.9 km) |
| 2016 | 2,539,700,000 | 1,941,200,000 | 2,308.0 miles (3,714.4 km) |
| 2017 | 2,623,500,000 | 1,995,000,000 | 2,313.5 miles (3,723.2 km) |
| 2018 | 2,680,900,000 | 2,037,800,000 | 2,314.6 miles (3,725.0 km) |
| 2019 | 2,769,000,000 | 2,120,800,000 | 2,319.4 miles (3,732.8 km) |
| 2020 | 2,169,500,000 | 1,577,500,000 | 2,328.3 miles (3,747.0 km) |
| 2021 | 2,476,200,000 | 1,815,400,000 | 2,331.9 miles (3,752.8 km) |
| 2022 | 2,700,900,000 | 2,010,300,000 | 2,387.3 miles (3,841.9 km) |
| 2023 | 2,791,700,000 | 2,091,600,000 | 2,392.6 miles (3,850.5 km) |