Northumberland County, Pennsylvania
| Donald Trump ✓Republican | 69.5% | 30,240 |
|---|---|---|
| Kamala HarrisDemocratic | 29.6% | 12,863 |
| Chase OliverLibertarian | 0.6% | 255 |
| Year | Margin (D minus R) |
|---|---|
| 1892 | +5.6% |
| 1896 | −7.7% |
| 1900 | −2.2% |
| 1904 | −29.4% |
| 1908 | −9.2% |
| 1912 | +23.1% |
| 1916 | +3.2% |
| 1920 | −25.1% |
| 1924 | −31.9% |
| 1928 | −23.2% |
| 1932 | +12.1% |
| 1936 | +18.6% |
| 1940 | +6.9% |
| 1944 | −3.9% |
| 1948 | −17.4% |
| 1952 | −23.7% |
| 1956 | −25.0% |
| 1960 | −10.7% |
| 1964 | +24.4% |
| 1968 | −12.8% |
| 1972 | −29.8% |
| 1976 | −0.9% |
| 1980 | −18.9% |
| 1984 | −23.1% |
| 1988 | −17.1% |
| 1992 | −6.3% |
| 1996 | −0.4% |
| 2000 | −13.4% |
| 2004 | −20.6% |
| 2008 | −13.8% |
| 2012 | −19.3% |
| 2016 | −42.4% |
| 2020 | −38.5% |
| 2024 | −39.9% |
Northumberland's Susquehanna River towns reflect the broader realignment of deindustrialized Appalachian Pennsylvania: a county that voted within single digits as recently as 2008 shifted to R+39.9 by 2024.
Across the recorded series it reached a Democratic high of 24.4 points in 1964 and a Republican high of 42.4 points in 2016. Between 2020 and 2024 the county moved 1.4 points toward the Republican candidate; the 2024 margin was 39.9 points.
A population of 90,560, a 89% non-Hispanic-white share, and a median household income of $60,583 describe the county. The county's voting pattern over the last decade is most similar to that of Pulaski County and Washington County.
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Northumberland County, Pennsylvania. Akashic. https://akashic.app/county/42097/. Accessed May 20, 2026. License: CC BY 4.0.