| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 7,957 | 9,511 | 17,698 | |
| 2020 | R | 7,657 | 8,336 | 16,288 | |
| 2016 | R | 6,432 | 7,147 | 14,248 | |
| 2012 | D | 7,276 | 6,151 | 13,652 | |
| 2008 | D | 7,163 | 5,617 | 12,919 | |
| 2004 | R | 4,878 | 4,999 | 9,954 | |
| 2000 | D | 4,314 | 3,873 | 8,351 | |
| 1996 | D | 3,897 | 2,816 | 7,285 | |
| 1992 | D | 3,770 | 2,947 | 7,753 | |
| 1988 | D | 3,186 | 3,065 | 6,292 | |
| 1984 | D | 3,111 | 2,949 | 6,138 | |
| 1980 | D | 2,924 | 2,071 | 5,154 | |
| 1976 | D | 3,064 | 1,648 | 4,796 | |
| 1972 | R | 1,814 | 2,086 | 3,951 | |
| 1968 | D | 2,165 | 1,162 | 4,426 | |
| 1964 | D | 2,064 | 1,166 | 3,243 | |
| 1960 | D | 1,483 | 864 | 2,367 | |
| 1956 | R | 853 | 907 | 1,969 | |
| 1952 | D | 954 | 858 | 1,825 | |
| 1948 | D | 731 | 397 | 1,312 | |
| 1944 | D | 1,004 | 383 | 1,391 | |
| 1940 | D | 1,136 | 305 | 1,447 | |
| 1936 | D | 1,104 | 258 | 1,367 | |
| 1932 | D | 1,076 | 270 | 1,364 | |
| 1928 | D | 639 | 638 | 1,277 | |
| 1924 | D | 840 | 223 | 1,083 | |
| 1920 | D | 665 | 308 | 984 | |
| 1916 | D | 637 | 198 | 840 | |
| 1912 | D | 590 | 144 | 866 | |
| 1908 | D | 494 | 326 | 827 | |
| 1904 | D | 501 | 317 | 826 | |
| 1900 | R | 1,077 | 1,144 | 2,235 | |
| 1896 | R | 1,293 | 1,502 | 2,813 | |
| 1892 | R | 1,235 | 1,343 | 2,823 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Caroline sits between Richmond and Fredericksburg along the I-95 corridor, blending exurban growth with a historically rural population. Its 2024 presidential margin of R+8.8 reflects a pattern of gradual realignment visible across Virginia's outer-ring counties.
The Democratic margin in Caroline County has rarely exceeded sixty-two points in modern history; the Republican margin has rarely exceeded nine points. 2024 delivered the county to the Republican candidate by nine points.
Caroline County's demographics resemble the country more than they resemble most counties. A 62% non-Hispanic-white share, a 11% poverty rate, and a median household income of $87,407 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Mason County and Knox County.
