These are the U.S. number-one country albums of 2009, per the Billboard Top Country Albums chart.
Note that Billboard publishes charts with an issue date approximately 7-10 days in advance.
| Issue Date | Album | Artist |
| January 3 | Fearless | Taylor Swift |
| January 10 | Fearless | Taylor Swift |
| January 17 | Fearless | Taylor Swift |
| January 24 | Fearless | Taylor Swift |
| January 31 | Fearless | Taylor Swift |
| February 7 | Fearless | Taylor Swift |
| February 14 | Fearless | Taylor Swift |
| February 21 | Feel That Fire | Dierks Bentley |
| February 28 | Fearless | Taylor Swift |
| March 7 | Fearless | Taylor Swift |
| March 14 | Fearless | Taylor Swift |
| March 21 | Fearless | Taylor Swift |
| March 28 | Fearless | Taylor Swift |
| April 4 | Fearless | Taylor Swift |
| April 11 | Shine | Martina McBride |
| April 18 | Defying Gravity | Keith Urban |
| April 25 | Unstoppable | Rascal Flatts |
| May 2 | Unstoppable | Rascal Flatts |
| May 9 | Hannah Montana: The Movie | Soundtrack |
| May 16 | Hannah Montana: The Movie | Soundtrack |
| May 23 | Hannah Montana: The Movie | Soundtrack |
| May 30 | Hannah Montana: The Movie | Soundtrack |
| June 6 | Greatest Hits II | Kenny Chesney |
| June 13 | Hannah Montana: The Movie | Soundtrack |
| June 20 | Hannah Montana: The Movie | Soundtrack |
| June 27 | Hannah Montana: The Movie | Soundtrack |
| July 4 | Hannah Montana: The Movie | Soundtrack |
| July 11 | Hannah Montana: The Movie | Soundtrack |
| July 18 | American Saturday Night | Brad Paisley |
| July 25 | American Saturday Night | Brad Paisley |
| August 1 | Fearless | Taylor Swift |
| August 8 | Fearless | Taylor Swift |
| August 15 | Fearless | Taylor Swift |
| August 22 | Live on the Inside | Sugarland |
| August 29 | Twang | George Strait |
| September 5 | Keep on Loving You | Reba McEntire |
| September 12 | Keep on Loving You | Reba McEntire |
| September 19 | Fearless | Taylor Swift |
| September 26 | #1's... and Then Some | Brooks & Dunn |
| October 3 | Fearless | Taylor Swift |
| October 10 | Fearless | Taylor Swift |
| October 17 | Revolution | Miranda Lambert |
| October 24 | American Ride | Toby Keith |
| October 31 | Fearless | Taylor Swift |
| November 7 | Southern Voice | Tim McGraw |
| November 14 | Fearless | Taylor Swift |
| November 21 | Play On | Carrie Underwood |
| November 28 | Play On | Carrie Underwood |
| December 5 | Play On | Carrie Underwood |
| December 12 | Fearless | Taylor Swift |
| December 19 | Fearless | Taylor Swift |
| December 26 | Fearless | Taylor Swift |
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