| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 62,504 | 92,444 | 156,432 | |
| 2020 | R | 64,873 | 86,929 | 153,321 | |
| 2016 | R | 52,451 | 78,688 | 135,901 | |
| 2012 | D | 64,307 | 58,325 | 124,845 | |
| 2008 | D | 72,492 | 61,127 | 135,175 | |
| 2004 | D | 69,573 | 64,953 | 136,028 | |
| 2000 | D | 62,199 | 52,328 | 119,586 | |
| 1996 | D | 60,174 | 43,577 | 116,817 | |
| 1992 | D | 56,623 | 49,285 | 127,146 | |
| 1988 | R | 58,553 | 59,059 | 118,092 | |
| 1984 | R | 58,482 | 69,169 | 129,291 | |
| 1980 | R | 59,976 | 67,822 | 135,080 | |
| 1976 | D | 74,655 | 60,058 | 136,009 | |
| 1972 | R | 51,128 | 81,358 | 133,606 | |
| 1968 | D | 79,040 | 57,044 | 143,380 | |
| 1964 | D | 106,397 | 43,895 | 152,071 | |
| 1960 | D | 102,998 | 70,711 | 174,271 | |
| 1956 | R | 65,155 | 92,458 | 158,820 | |
| 1952 | R | 72,579 | 88,967 | 162,261 | |
| 1948 | R | 61,869 | 71,674 | 135,611 | |
| 1944 | D | 73,674 | 67,984 | 142,199 | |
| 1940 | D | 101,577 | 79,685 | 181,884 | |
| 1936 | D | 105,008 | 81,572 | 188,577 | |
| 1932 | D | 60,975 | 52,672 | 115,928 | |
| 1928 | D | 73,319 | 67,872 | 141,411 | |
| 1924 | R | 20,472 | 46,475 | 87,396 | |
| 1920 | R | 23,473 | 49,419 | 75,575 | |
| 1916 | R | 19,999 | 25,348 | 47,179 | |
| 1912 | D | 13,461 | 4,970 | 41,338 | |
| 1908 | R | 17,379 | 24,594 | 43,733 | |
| 1904 | R | 13,518 | 27,809 | 42,895 | |
| 1900 | R | 16,470 | 21,793 | 39,717 | |
| 1896 | R | 17,305 | 22,718 | 41,248 | |
| 1892 | D | 15,734 | 14,118 | 31,229 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Luzerne County, anchored by Wilkes-Barre, was reliably Democratic through the early 2000s but has swung sharply rightward as its working-class, non-college white electorate realigned — making it one of Pennsylvania's most dramatic political reversals.
The county's recent history is a story of close margins. The Democratic margin reached forty-one points in 1964; the Republican margin reached thirty-four points in 1920. Most other elections have been decided by single-digit points.
Luzerne County's demographics — a population of 327,675, a 76% non-Hispanic-white share, a median household income of $63,691 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Mercer County and Adams County.
