- 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 Hartley County Road Miles Chart |
|---|
| Calendar Year | Number of All Vehicle Miles | Change from Prior Year | Number of Truck Miles | Change from Prior Year |
|---|
| 2005 | 9,405.180 | N/A | 0.000 | N/A |
| 2006 | 9,708.066 | 3.2% | 8.356 | N/A |
| 2007 | 9,708.066 | 0.0% | 8.356 | 0.0% |
| 2008 | 9,708.066 | 0.0% | 8.356 | 0.0% |
| 2009 | 9,701.982 | -0.1% | 8.356 | 0.0% |
| 2010 | 20,084.170 | 107.0% | 642.693 | 7,591.5% |
| 2011 | 19,068.230 | -5.1% | 610.183 | -5.1% |
| 2012 | 19,068.230 | 0.0% | 610.183 | 0.0% |
| 2013 | 19,068.230 | 0.0% | 610.183 | 0.0% |
| 2014 | 19,075.590 | 0.0% | 610.419 | 0.0% |
| 2015 | 16,165.526 | -15.3% | 517.297 | -15.3% |
| 2016 | 16,165.526 | 0.0% | 517.297 | 0.0% |
| 2017 | 16,164.489 | 0.0% | 429.921 | -16.9% |
| 2018 | 45,891.224 | 183.9% | 1,354.572 | 215.1% |
| 2019 | 45,891.224 | 0.0% | 1,486.665 | 9.8% |
| 2020 | 20,287.471 | -55.8% | 601.179 | -59.6% |
| 2021 | 20,282.683 | 0.0% | 600.951 | 0.0% |
| 2022 | 20,315.575 | 0.2% | 528.188 | -12.1% |