Onondaga County, New York: Industrial Catholic Metro county. In 2024, voted D+17%. Republican peak: R+47 in 1956.
Key facts
- 2024 presidential margin
- D+17MIT Election Lab
- Political typology
- Industrial Catholic MetroAkashic typology
- Population
- 471,1292024 5-year
- Median household income
- $76,9452024 5-year
- White (non-Hispanic)
- 74.8%2024 5-year
- Black
- 10.8%2024 5-year
- Hispanic / Latino
- 5.9%2024 5-year
- Peak Democratic margin
- D+34 in 1964MIT Election Lab
- Peak Republican margin
- R+47 in 1956MIT Election Lab
- Most similar
- New Castle County, DE · similarity 0.99
2024 results by precinct
2024 precinct map of Onondaga CountyPrecinct-level 2024 presidential results for Onondaga County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −11.4% |
| 1896 | −28.2% |
| 1900 | −23.5% |
| 1904 | −28.8% |
| 1908 | −22.8% |
| 1912 | −0.8% |
| 1916 | −15.8% |
| 1920 | −39.2% |
| 1924 | −40.3% |
| 1928 | −16.1% |
| 1932 | −3.1% |
| 1936 | −12.0% |
| 1940 | −14.8% |
| 1944 | −4.5% |
| 1948 | −11.5% |
| 1952 | −30.1% |
| 1956 | −46.8% |
| 1960 | −8.2% |
| 1964 | +34.1% |
| 1968 | −6.4% |
| 1972 | −38.6% |
| 1976 | −20.4% |
| 1980 | −12.6% |
| 1984 | −19.6% |
| 1988 | −4.7% |
| 1992 | +6.1% |
| 1996 | +13.6% |
| 2000 | +12.9% |
| 2004 | +10.4% |
| 2008 | +20.3% |
| 2012 | +21.2% |
| 2016 | +13.8% |
| 2020 | +20.0% |
| 2024 | +17.1% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 133,155 | 93,916 | 229,942 | ||
| D | 138,991 | 91,715 | 236,068 | ||
| D | 112,337 | 83,649 | 208,440 | ||
| D | 122,254 | 78,831 | 204,717 | ||
| D | 129,317 | 84,972 | 218,239 | ||
| D | 116,381 | 94,006 | 214,625 | ||
| D | 109,896 | 83,678 | 203,643 | ||
| D | 100,190 | 73,771 | 194,939 | ||
| D | 90,645 | 77,642 | 214,907 | ||
| R | 94,751 | 104,080 | 200,485 | ||
| R | 81,777 | 121,857 | 204,314 | ||
| R | 73,453 | 97,887 | 193,280 | ||
| R | 76,097 | 115,474 | 192,578 | ||
| R | 61,895 | 140,039 | 202,416 | ||
| R | 83,576 | 95,806 | 189,865 | ||
| D | 128,630 | 63,205 | 192,014 | ||
| R | 90,836 | 107,170 | 198,156 | ||
| R | 49,918 | 137,852 | 187,770 | ||
| R | 64,022 | 119,268 | 183,714 | ||
| R | 66,295 | 84,370 | 156,648 | ||
| R | 73,562 | 80,507 | 154,638 | ||
| R | 67,481 | 91,056 | 159,022 | ||
| R | 62,945 | 80,498 | 146,270 | ||
| R | 62,227 | 66,363 | 133,219 | ||
| R | 54,706 | 76,278 | 133,716 | ||
| R | 24,773 | 65,395 | 100,769 | ||
| R | 23,308 | 57,008 | 86,047 | ||
| R | 19,892 | 27,815 | 50,253 | ||
| R | 15,827 | 16,202 | 45,917 | ||
| R | 16,643 | 27,209 | 46,355 | ||
| R | 14,633 | 27,115 | 43,317 | ||
| R | 14,698 | 24,317 | 40,957 | ||
| R | 13,695 | 25,032 | 40,141 | ||
| R | 14,900 | 19,008 | 35,904 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Irish
17.7%
Italian
15.1%
German
14.2%
English
11.4%
Polish
5.8%
French
3.1%
American
3.1%
African American
8.6%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 39.6 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$76,945
Onondaga County ranks in the top 25% of US counties.
Onondaga County$76,945
New York$85,974
United States$80,734
Onondaga County ranks in the top 25% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
13.8%
Children face moderate poverty.
Children under 1820.6%
Working age (18–64)11.9%
Seniors (65+)12.0%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
88.7%
speak English only
Other Indo-European3.5%
Spanish3.2%
Asian & Pacific Islander2.5%
Other languages2.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 47.1% of residents not counted as adherents by any reporting body.
Anchored by Syracuse, Onondaga blends a mid-size post-industrial city with suburban and rural townships, producing a reliably center-left presidential lean that has widened steadily over three decades.
Its margins are typically close. The Democratic margin reached thirty-four points in 1964; the Republican margin reached forty-seven points in 1956. Between 2020 and 2024 the county moved three points toward the Republican candidate; the 2024 margin was seventeen points.
Its demographics sit near national norms: a 75% non-Hispanic-white share, a median household income of $76,945, and a 14% poverty rate. The county's voting pattern over the last decade is most similar to that of New Castle County and Ingham County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Onondaga County, New York. Akashic. https://akashic.app/county/36067/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in New York
More industrial catholic metro counties
Frequently asked questions
How did Onondaga County, New York vote in 2024?
In 2024, Onondaga County, New York voted Democratic by 17.1 points (D+17), carried by the Democratic candidate. Out of 229,942 votes cast, 133,155 went Democratic and 93,916 went Republican.
What is Onondaga County, New York's political typology?
Akashic places Onondaga County, New York in the "Industrial Catholic Metro" typology — Mid-size industrial metros with Catholic ethnic roots — among the most competitive, swing-prone ground in the country. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 10 times, Republican 24 times, and other 0 times.
When did Onondaga County, New York last vote Republican?
The most recent presidential election in which Onondaga County, New York voted Republican was 1988.
How many people live in Onondaga County, New York?
Onondaga County, New York has a population of 471,129 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Onondaga County, New York?
Median household income in Onondaga County, New York is $76,945 — below the national median of $80,734. The New York state median is $85,974.
What is the political history of Onondaga County, New York?
Akashic tracks 38 presidential elections in Onondaga County, New York from 1876 to 2024. Of those, 10 went Democratic and 24 went Republican. The county's typology — "Industrial Catholic Metro" — captures where that record, its demographics, and its recent swing place it among American communities.