| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 5,440 | 19,174 | 24,932 | |
| 2020 | R | 5,705 | 17,883 | 24,282 | |
| 2016 | R | 4,743 | 14,417 | 19,971 | |
| 2012 | R | 5,870 | 13,023 | 19,259 | |
| 2008 | R | 7,132 | 13,250 | 20,790 | |
| 2004 | R | 8,243 | 11,793 | 20,167 | |
| 2000 | R | 8,741 | 8,788 | 17,788 | |
| 1996 | D | 7,951 | 7,038 | 16,301 | |
| 1992 | D | 8,534 | 6,047 | 17,044 | |
| 1988 | R | 5,686 | 7,837 | 13,615 | |
| 1984 | R | 5,691 | 7,695 | 13,468 | |
| 1980 | D | 7,612 | 5,454 | 13,393 | |
| 1976 | D | 8,017 | 3,848 | 12,005 | |
| 1972 | R | 2,973 | 6,416 | 9,695 | |
| 1968 | R | 3,040 | 3,337 | 11,171 | |
| 1964 | D | 6,837 | 3,012 | 9,849 | |
| 1960 | D | 4,555 | 3,058 | 7,686 | |
| 1956 | D | 4,930 | 2,389 | 7,369 | |
| 1952 | D | 3,537 | 2,110 | 5,665 | |
| 1948 | D | 2,041 | 599 | 3,601 | |
| 1944 | D | 2,703 | 568 | 3,274 | |
| 1940 | D | 2,277 | 424 | 2,712 | |
| 1936 | D | 2,148 | 408 | 2,570 | |
| 1932 | D | 1,950 | 430 | 2,400 | |
| 1928 | D | 1,175 | 1,126 | 2,311 | |
| 1924 | D | 1,691 | 488 | 2,239 | |
| 1920 | D | 2,043 | 822 | 2,865 | |
| 1916 | D | 1,837 | 489 | 2,346 | |
| 1912 | D | 1,705 | 521 | 2,317 | |
| 1908 | D | 1,654 | 656 | 2,346 | |
| 1904 | D | 1,441 | 536 | 2,024 | |
| 1900 | D | 1,660 | 624 | 2,360 | |
| 1896 | D | 1,891 | 639 | 2,611 | |
| 1892 | D | 1,415 | 414 | 2,206 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Coffee County sits on the Highland Rim southeast of Nashville, anchored by Manchester, and has shifted from a competitive rural Democrat stronghold in the 1990s to one of Tennessee's most lopsided Republican counties, posting a 55-point margin in 2024.
The unraveling was not abrupt. The Democratic margin in Coffee County peaked at sixty-eight points in 1940; it narrowed steadily over the late twentieth century. The 2000 election delivered the county to the Republican party for the first time in many years, by a margin of zero points. By 2024, the margin had widened further.
The economic and demographic context is severe. Coffee County's median household income of $61,505 is among the lowest of any county in the United States; 17% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Putnam County and Morgan County.
