| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 112,869 | 94,030 | 210,628 | |
| 2020 | D | 106,935 | 93,326 | 203,884 | |
| 2016 | R | 81,074 | 85,045 | 176,362 | |
| 2012 | R | 77,694 | 90,934 | 170,988 | |
| 2008 | R | 74,310 | 86,413 | 162,088 | |
| 2004 | R | 49,346 | 83,745 | 133,814 | |
| 2000 | R | 38,638 | 69,924 | 110,951 | |
| 1996 | R | 30,220 | 56,650 | 93,305 | |
| 1992 | R | 28,028 | 56,626 | 101,933 | |
| 1988 | R | 18,723 | 58,828 | 78,083 | |
| 1984 | R | 13,739 | 54,896 | 68,811 | |
| 1980 | R | 13,060 | 37,908 | 53,613 | |
| 1976 | R | 14,126 | 27,812 | 42,436 | |
| 1972 | R | 3,823 | 24,934 | 29,253 | |
| 1968 | R | 5,715 | 22,015 | 39,292 | |
| 1964 | R | 8,376 | 17,486 | 25,871 | |
| 1960 | R | 5,982 | 9,787 | 15,859 | |
| 1956 | R | 3,306 | 5,787 | 10,894 | |
| 1952 | R | 3,546 | 4,482 | 8,046 | |
| 1948 | D | 2,600 | 1,428 | 4,730 | |
| 1944 | D | 2,860 | 901 | 3,772 | |
| 1940 | D | 3,354 | 879 | 4,261 | |
| 1936 | D | 2,522 | 621 | 3,173 | |
| 1932 | D | 1,886 | 726 | 2,698 | |
| 1928 | R | 1,082 | 1,325 | 2,407 | |
| 1924 | D | 967 | 282 | 1,324 | |
| 1920 | D | 964 | 302 | 1,279 | |
| 1916 | D | 699 | 141 | 858 | |
| 1912 | D | 702 | 61 | 848 | |
| 1908 | D | 608 | 167 | 794 | |
| 1904 | D | 597 | 151 | 765 | |
| 1900 | D | 1,368 | 884 | 2,276 | |
| 1896 | D | 1,727 | 1,273 | 3,036 | |
| 1892 | D | 1,747 | 1,241 | 3,140 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Chesterfield County, anchored in the Richmond metro's southern suburbs, has tracked Virginia's broader suburban realignment — once reliably red, it now returns Democratic presidential margins that would have been unthinkable a decade ago.
The Democratic margin in Chesterfield County has rarely exceeded seventy-six points in modern history; the Republican margin has rarely exceeded seventy-two points. 2024 delivered the county to the Democratic candidate by nine points.
Chesterfield County's demographics resemble the country more than they resemble most counties. A 58% non-Hispanic-white share, a 7% poverty rate, and a median household income of $101,931 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Kent County and Frederick County.
