- 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 Montgomery County Road Miles Chart |
|---|
| Calendar Year | Number of All Vehicle Miles | Change from Prior Year | Number of Truck Miles | Change from Prior Year |
|---|
| 2005 | 1,702,038.638 | N/A | 51,810.581 | N/A |
| 2006 | 1,702,038.638 | 0.0% | 51,810.581 | 0.0% |
| 2007 | 1,946,921.484 | 14.4% | 62,276.661 | 20.2% |
| 2008 | 1,639,994.497 | -15.8% | 49,866.670 | -19.9% |
| 2009 | 1,636,916.997 | -0.2% | 49,767.442 | -0.2% |
| 2010 | 1,737,016.842 | 6.1% | 55,584.539 | 11.7% |
| 2011 | 2,390,412.535 | 37.6% | 69,865.521 | 25.7% |
| 2012 | 2,401,661.340 | 0.5% | 70,222.943 | 0.5% |
| 2013 | 2,392,144.505 | -0.4% | 76,548.624 | 9.0% |
| 2014 | 2,391,721.745 | 0.0% | 76,535.096 | 0.0% |
| 2015 | 2,507,675.912 | 4.8% | 80,895.956 | 5.7% |
| 2016 | 3,029,785.155 | 20.8% | 100,028.804 | 23.7% |
| 2017 | 3,044,354.134 | 0.5% | 101,019.277 | 1.0% |
| 2018 | 3,163,656.715 | 3.9% | 108,425.810 | 7.3% |
| 2019 | 3,153,306.153 | -0.3% | 117,043.685 | 7.9% |
| 2020 | 2,943,878.078 | -6.6% | 114,157.413 | -2.5% |
| 2021 | 3,243,561.391 | 10.2% | 149,773.711 | 31.2% |
| 2022 | 3,360,229.962 | 3.6% | 145,167.969 | -3.1% |