| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 3,384 | 3,651 | 7,233 | |
| 2020 | D | 3,722 | 3,255 | 7,160 | |
| 2016 | D | 3,313 | 2,616 | 6,868 | |
| 2012 | D | 4,058 | 2,722 | 7,193 | |
| 2008 | D | 4,696 | 3,032 | 7,895 | |
| 2004 | D | 4,025 | 3,696 | 7,851 | |
| 2000 | D | 3,294 | 3,173 | 6,826 | |
| 1996 | D | 3,374 | 2,315 | 6,364 | |
| 1992 | D | 2,908 | 2,186 | 6,088 | |
| 1988 | R | 2,960 | 3,114 | 6,217 | |
| 1984 | R | 2,541 | 3,403 | 6,048 | |
| 1980 | R | 2,226 | 2,685 | 5,422 | |
| 1976 | D | 2,606 | 2,265 | 4,939 | |
| 1972 | R | 1,994 | 2,658 | 4,730 | |
| 1968 | R | 1,871 | 2,230 | 4,283 | |
| 1964 | D | 2,397 | 1,774 | 4,181 | |
| 1960 | D | 2,327 | 1,796 | 4,128 | |
| 1956 | R | 1,476 | 2,365 | 3,841 | |
| 1952 | R | 1,777 | 2,224 | 4,006 | |
| 1948 | R | 1,650 | 2,139 | 3,798 | |
| 1944 | R | 1,967 | 2,030 | 4,000 | |
| 1940 | R | 2,489 | 2,703 | 5,197 | |
| 1936 | R | 2,477 | 2,530 | 5,023 | |
| 1932 | D | 2,495 | 1,931 | 4,438 | |
| 1928 | R | 1,564 | 1,940 | 3,507 | |
| 1924 | R | 1,251 | 2,332 | 3,742 | |
| 1920 | R | 1,807 | 3,150 | 4,987 | |
| 1916 | R | 1,558 | 1,954 | 3,534 | |
| 1912 | D | 1,078 | 960 | 2,327 | |
| 1908 | — | — | — | — | |
| 1904 | — | — | — | — | |
| 1900 | — | — | — | — | |
| 1896 | — | — | — | — | |
| 1892 | — | — | — | — | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Socorro County, anchored by the city of Socorro and New Mexico Tech, shifted to the Republican column by 3.7 points in 2024 after voting Democratic in prior presidential cycles — a swing reflecting broader rural realignment in the state's Hispanic-majority counties.
The Democratic margin in Socorro County reached its widest at twenty-one points in 2008. The margin in 2024 was four points — a notable narrowing.
Socorro County's loyalty is rooted in its place. Median household income of $36,570, a 42% non-Hispanic-white share, and a population of 16,200 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Sussex County and Franklin County.
