| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 59,510 | 56,261 | 116,925 | |
| 2020 | D | 61,991 | 52,334 | 115,410 | |
| 2016 | D | 51,983 | 48,384 | 104,404 | |
| 2012 | D | 61,838 | 35,085 | 98,351 | |
| 2008 | D | 67,520 | 39,488 | 107,876 | |
| 2004 | D | 59,573 | 44,766 | 105,819 | |
| 2000 | D | 57,471 | 35,096 | 96,381 | |
| 1996 | D | 46,377 | 26,930 | 82,681 | |
| 1992 | D | 45,054 | 33,443 | 94,968 | |
| 1988 | D | 45,591 | 42,083 | 88,741 | |
| 1984 | R | 45,851 | 48,132 | 95,185 | |
| 1980 | D | 45,257 | 44,242 | 95,447 | |
| 1976 | D | 57,685 | 43,354 | 102,797 | |
| 1972 | R | 45,465 | 58,838 | 104,869 | |
| 1968 | D | 66,297 | 44,388 | 114,391 | |
| 1964 | D | 88,131 | 31,272 | 119,540 | |
| 1960 | D | 80,098 | 49,636 | 129,783 | |
| 1956 | R | 55,741 | 64,386 | 120,206 | |
| 1952 | D | 64,926 | 61,644 | 126,717 | |
| 1948 | D | 64,495 | 46,283 | 111,749 | |
| 1944 | D | 59,190 | 47,261 | 106,578 | |
| 1940 | D | 71,343 | 54,931 | 126,685 | |
| 1936 | D | 80,585 | 51,186 | 133,801 | |
| 1932 | D | 40,793 | 34,632 | 76,560 | |
| 1928 | D | 52,665 | 46,510 | 99,269 | |
| 1924 | R | 16,859 | 37,708 | 62,401 | |
| 1920 | R | 24,581 | 40,593 | 67,040 | |
| 1916 | R | 15,727 | 17,658 | 34,758 | |
| 1912 | D | 12,423 | 3,799 | 32,883 | |
| 1908 | R | 15,451 | 18,590 | 34,788 | |
| 1904 | R | 10,068 | 19,923 | 30,867 | |
| 1900 | R | 14,728 | 16,763 | 32,510 | |
| 1896 | R | 11,869 | 18,737 | 31,605 | |
| 1892 | R | 10,351 | 10,729 | 22,178 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Lackawanna County, anchored by Scranton in Pennsylvania's northeastern corner, has shifted from reliably Democratic to competitive over the past decade, with its 2024 presidential margin of D+2.8 reflecting the continued realignment of working-class Catholic and union households.
The Democratic margin in Lackawanna County reached its widest at forty-eight points in 1964. The margin in 2024 was three points — still decisive.
Lackawanna County's loyalty is rooted in its place. Median household income of $66,223, a 81% non-Hispanic-white share, and a population of 216,146 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 Haywood County and Rock County.