| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 16,338 | 38,398 | 55,508 | |
| 2020 | R | 16,367 | 35,482 | 52,650 | |
| 2016 | R | 12,734 | 30,037 | 45,183 | |
| 2012 | R | 18,796 | 23,734 | 43,115 | |
| 2008 | R | 21,457 | 22,831 | 45,362 | |
| 2004 | R | 18,086 | 25,556 | 44,147 | |
| 2000 | R | 15,749 | 20,351 | 37,234 | |
| 1996 | D | 14,308 | 13,369 | 32,841 | |
| 1992 | R | 11,982 | 12,326 | 35,084 | |
| 1988 | R | 10,736 | 16,670 | 27,697 | |
| 1984 | R | 7,800 | 19,222 | 27,200 | |
| 1980 | R | 9,671 | 15,996 | 28,069 | |
| 1976 | R | 9,503 | 12,349 | 22,215 | |
| 1972 | R | 5,531 | 11,615 | 17,592 | |
| 1968 | R | 5,199 | 8,866 | 16,163 | |
| 1964 | D | 8,595 | 6,012 | 14,624 | |
| 1960 | R | 5,099 | 10,450 | 15,567 | |
| 1956 | R | 3,913 | 10,527 | 14,459 | |
| 1952 | R | 3,644 | 9,940 | 13,656 | |
| 1948 | R | 4,668 | 8,358 | 13,298 | |
| 1944 | R | 3,002 | 7,769 | 10,821 | |
| 1940 | R | 3,299 | 7,714 | 11,044 | |
| 1936 | R | 3,868 | 5,081 | 9,364 | |
| 1932 | R | 4,315 | 4,882 | 9,412 | |
| 1928 | R | 1,312 | 6,514 | 7,867 | |
| 1924 | R | 929 | 6,297 | 7,528 | |
| 1920 | R | 1,298 | 5,523 | 7,026 | |
| 1916 | R | 1,937 | 3,345 | 5,415 | |
| 1912 | R | 1,200 | 1,728 | 5,385 | |
| 1908 | R | 1,644 | 3,426 | 5,396 | |
| 1904 | R | 1,519 | 3,917 | 5,680 | |
| 1900 | R | 2,208 | 3,706 | 6,207 | |
| 1896 | R | 3,065 | 3,809 | 7,103 | |
| 1892 | R | 2,698 | 3,126 | 6,365 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Lapeer County, anchored by its small county-seat city of the same name, has moved steadily toward lopsided Republican margins over two decades as its largely white, working-class exurban population pulled away from the Detroit metro's political orbit.
The Republican margin in Lapeer County reached its widest at seventy-one points in 1924. The margin in 2024 was forty points, in line with the county's deep historical pattern.
Lapeer County's loyalty is rooted in its place. Median household income of $77,306, a 91% non-Hispanic-white share, and a population of 88,837 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 Oscoda County and Montmorency County.