- 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 Irion County Road Miles Chart |
|---|
| Calendar Year | Number of All Vehicle Miles | Change from Prior Year | Number of Truck Miles | Change from Prior Year |
|---|
| 2005 | 9,922.104 | N/A | 305.079 | N/A |
| 2006 | 9,922.104 | 0.0% | 305.079 | 0.0% |
| 2007 | 9,922.104 | 0.0% | 317.504 | 4.1% |
| 2008 | 7,913.850 | -20.2% | 252.011 | -20.6% |
| 2009 | 7,913.850 | 0.0% | 252.011 | 0.0% |
| 2010 | 7,883.200 | -0.4% | 252.262 | 0.1% |
| 2011 | 7,883.200 | 0.0% | 252.262 | 0.0% |
| 2012 | 7,897.050 | 0.2% | 252.706 | 0.2% |
| 2013 | 47,197.823 | 497.7% | 1,510.330 | 497.7% |
| 2014 | 7,705.430 | -83.7% | 246.574 | -83.7% |
| 2015 | 7,705.430 | 0.0% | 246.574 | 0.0% |
| 2016 | 7,705.430 | 0.0% | 246.574 | 0.0% |
| 2017 | 7,705.320 | 0.0% | 266.504 | 8.1% |
| 2018 | 8,707.278 | 13.0% | 394.242 | 47.9% |
| 2019 | 8,658.676 | -0.6% | 388.648 | -1.4% |
| 2020 | 8,023.606 | -7.3% | 368.012 | -5.3% |
| 2021 | 8,023.606 | 0.0% | 368.012 | 0.0% |
| 2022 | 8,023.606 | 0.0% | 373.324 | 1.4% |