| Last year | US No 1 Country Hits of the year 1966 | Next year |
| 1 Jan 1966 | Buckaroo (Buck Owens and the Buckaroos) |
| 8 Jan 1966 | Giddyup Go (Red Sovine) |
| 15 Jan 1966 | Giddyup Go (Red Sovine) |
| 22 Jan 1966 | Giddyup Go (Red Sovine) |
| 29 Jan1966 | Giddyup Go (Red Sovine) |
| 5 Feb 1966 | Giddyup Go (Red Sovine) |
| 12 Feb 1966 | Giddyup Go (Red Sovine) |
| 19 Feb 1966 | Waitin' in Your Welfare Line / In The Palm Of Your Hand (Buck Owens and the Buckaroos) |
| 26 Feb 1966 | Waitin' in Your Welfare Line / In The Palm Of Your Hand (Buck Owens and the Buckaroos) |
| 5 Mar 1966 | Waitin' in Your Welfare Line / In The Palm Of Your Hand (Buck Owens and the Buckaroos) |
| 12 Mar 1966 | Waitin' in Your Welfare Line / In The Palm Of Your Hand (Buck Owens and the Buckaroos) |
| 19 Mar 1966 | Waitin' in Your Welfare Line / In The Palm Of Your Hand (Buck Owens and the Buckaroos) |
| 26 Mar 1966 | Waitin' in Your Welfare Line / In The Palm Of Your Hand (Buck Owens and the Buckaroos) |
| 2 Apr 1966 | Waitin' in Your Welfare Line / In The Palm Of Your Hand (Buck Owens and the Buckaroos) |
| 9 Apr 1966 | I Want to Go with You (Eddy Arnold) |
| 16 Apr 1966 | I Want to Go with You (Eddy Arnold) |
| 23 Apr 1966 | I Want to Go with You (Eddy Arnold) |
| 30 Apr 1966 | I Want to Go with You (Eddy Arnold) |
| 7 May 1966 | I Want to Go with You (Eddy Arnold) |
| 14 May 1966 | I Want to Go with You (Eddy Arnold) |
| 21 May 1966 | Distant Drums (Jim Reeves) |
| 28 May 1966 | Distant Drums (Jim Reeves) |
| 4 June 1966 | Distant Drums (Jim Reeves) |
| 11 June 1966 | Distant Drums (Jim Reeves) |
| 18 June 1966 | Take Good Care of Her (Sonny James) |
| 25 June 1966 | Take Good Care of Her (Sonny James) |
| 2 July 1966 | Think of me (Buck Owens and the Buckaroos) |
| 9 July 1966 | Think of me (Buck Owens and the Buckaroos) |
| 16 July 1966 | Think of me (Buck Owens and the Buckaroos) |
| 23 July 1966 | Think of me (Buck Owens and the Buckaroos) |
| 30 Jul 1966 | Think of me (Buck Owens and the Buckaroos) |
| 6 Aug 1966 | Think of me (Buck Owens and the Buckaroos) |
| 13 Aug 1966 | Almost Persuaded (David Houston) |
| 20 Aug 1966 | Almost Persuaded (David Houston) |
| 27 Aug 1966 | Almost Persuaded (David Houston) |
| 3 Sept 1966 | Almost Persuaded (David Houston) |
| 10 Sept 1966 | Almost Persuaded (David Houston) |
| 17 Sept 1966 | Almost Persuaded (David Houston) |
| 24 Sept 1966 | Almost Persuaded (David Houston) |
| 1 Oct 1966 | Almost Persuaded (David Houston) |
| 8 Oct 1966 | Almost Persuaded (David Houston) |
| 15 Oct 1966 | Blue Side of Lonesome (Jim Reeves) |
| 22 Oct 1966 | Open up your heart (Buck Owens and the Buckaroos) |
| 29 Oct 1966 | Open up your heart (Buck Owens and the Buckaroos) |
| 5 Nov 1966 | Open up your heart (Buck Owens and the Buckaroos) |
| 12 Nov 1966 | Open up your heart (Buck Owens and the Buckaroos) |
| 19 Nov 1966 | I Get the Fever (Bill Anderson) |
| 26 Nov 1966 | Somebody Like Me (Eddy Arnold) |
| 3 Dec 1966 | Somebody Like Me (Eddy Arnold) |
| 10 Dec 1966 | Somebody Like Me (Eddy Arnold) |
| 17 Dec 1966 | Somebody Like Me (Eddy Arnold) |
| 24 Dec 1966 | There Goes My Everything (Jack Greene) |
| 31 Dec 1966 | There Goes My Everything (Jack Greene) |