- Data only includes miles travelled on county roads. It does not include miles travelled on city, state or federal roads and highways.
- Lack of a visible bar can occur when the number is so small the result is a bar less than one pixel in height.
| Data for the Trinity County Road Miles Chart |
|---|
| Calendar Year | Number of All Vehicle Miles | Change from Prior Year | Number of Truck Miles | Change from Prior Year |
|---|
| 2005 | 24,701.729 | N/A | 786.487 | N/A |
| 2006 | 24,701.729 | 0.0% | 786.487 | 0.0% |
| 2007 | 25,285.194 | 2.4% | 807.273 | 2.6% |
| 2008 | 19,522.165 | -22.8% | 622.279 | -22.9% |
| 2009 | 19,474.015 | -0.2% | 620.741 | -0.2% |
| 2010 | 19,044.440 | -2.2% | 609.422 | -1.8% |
| 2011 | 19,325.155 | 1.5% | 618.405 | 1.5% |
| 2012 | 19,526.510 | 1.0% | 624.848 | 1.0% |
| 2013 | 20,667.166 | 5.8% | 661.349 | 5.8% |
| 2014 | 18,310.725 | -11.4% | 585.943 | -11.4% |
| 2015 | 18,310.725 | 0.0% | 585.943 | 0.0% |
| 2016 | 18,310.725 | 0.0% | 585.943 | 0.0% |
| 2017 | 18,355.555 | 0.2% | 603.718 | 3.0% |
| 2018 | 18,180.305 | -1.0% | 758.260 | 25.6% |
| 2019 | 17,214.798 | -5.3% | 462.156 | -39.1% |
| 2020 | 23,351.645 | 35.6% | 1,310.251 | 183.5% |
| 2021 | 23,234.191 | -0.5% | 1,306.807 | -0.3% |
| 2022 | 23,415.943 | 0.8% | 925.534 | -29.2% |