| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 20,007 | 26,726 | 47,647 | |
| 2020 | R | 22,427 | 25,997 | 49,392 | |
| 2016 | R | 19,795 | 22,678 | 45,597 | |
| 2012 | D | 24,107 | 18,615 | 43,681 | |
| 2008 | D | 28,258 | 17,918 | 46,919 | |
| 2004 | D | 21,114 | 20,916 | 42,606 | |
| 2000 | D | 19,736 | 18,994 | 39,747 | |
| 1996 | D | 19,879 | 14,106 | 39,377 | |
| 1992 | D | 17,717 | 14,962 | 42,463 | |
| 1988 | R | 17,585 | 20,537 | 38,285 | |
| 1984 | R | 15,904 | 23,346 | 39,567 | |
| 1980 | R | 15,387 | 22,424 | 40,538 | |
| 1976 | R | 18,217 | 21,989 | 40,655 | |
| 1972 | R | 13,222 | 26,243 | 39,776 | |
| 1968 | R | 15,780 | 20,295 | 40,783 | |
| 1964 | D | 22,220 | 16,270 | 38,594 | |
| 1960 | R | 20,317 | 22,738 | 43,140 | |
| 1956 | R | 14,417 | 24,622 | 39,142 | |
| 1952 | R | 15,011 | 22,576 | 37,733 | |
| 1948 | R | 13,923 | 15,661 | 29,859 | |
| 1944 | R | 13,896 | 16,543 | 30,568 | |
| 1940 | R | 13,732 | 15,771 | 29,593 | |
| 1936 | D | 15,359 | 11,722 | 27,392 | |
| 1932 | D | 14,890 | 10,739 | 25,995 | |
| 1928 | R | 9,254 | 14,763 | 24,075 | |
| 1924 | R | 5,214 | 11,597 | 18,943 | |
| 1920 | R | 5,459 | 11,204 | 17,238 | |
| 1916 | R | 5,276 | 5,726 | 11,387 | |
| 1912 | D | 4,847 | 2,701 | 10,862 | |
| 1908 | R | 5,680 | 5,824 | 11,760 | |
| 1904 | R | 4,472 | 5,952 | 10,689 | |
| 1900 | R | 4,783 | 4,809 | 9,711 | |
| 1896 | R | 4,511 | 4,691 | 9,329 | |
| 1892 | D | 4,703 | 3,548 | 8,457 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
LaPorte County sits on Indiana's northern tier bordering Lake Michigan, with a mix of small industrial cities and rural townships. Once a competitive swing county, it delivered a 14-point Republican margin in 2024 after voting much closer in earlier cycles.
The Democratic margin in LaPorte County has rarely exceeded twenty-two points in modern history; the Republican margin has rarely exceeded thirty-four points. 2024 delivered the county to the Republican candidate by fourteen points.
LaPorte County's demographics resemble the country more than they resemble most counties. A 78% non-Hispanic-white share, a 14% poverty rate, and a median household income of $71,055 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Grant County and Whiteside County.
