akashic
1876–2024
Montgomery County, Ohio
Montgomery County·Ohio

Montgomery County delivered a near-tie in 2024.

Dayton's home county has become one of Ohio's closest presidential battlegrounds

18762024·38 elections
Montgomery County, Ohio · Nyttend · Wikimedia Commons
Latest
Tied
in 2024
Archetype
Tossup
since the recent cycles
Population
536,096
2024 ACS
Most similar
Pinellas County
FL · similarity 0.95
380 precincts · 256,544 votes cast
Harris · D+0
Margin
Turnout
Harris +50
Trump +50
Real precinct boundaries. Hover for vote totals.
YearWonMarginDemocraticRepublicanTotal
2024D
+0.5%
126,767125,566256,544
2020D
+2.2%
135,064129,034268,505
2016R
−0.7%
122,016123,909261,989
2012D
+4.6%
137,139124,841267,936
2008D
+6.2%
145,997128,679279,031
2004D
+1.6%
142,997138,371282,584
2000D
+2.1%
114,597109,792230,987
1996D
+8.7%
115,46995,391230,957
1992D
+1.2%
108,017104,751261,720
1988R
−15.7%
95,737131,596228,943
1984R
−18.5%
94,016137,053232,402
1980D
+1.6%
105,110101,443223,009
1976D
+3.0%
106,468100,223211,436
1972R
−18.6%
82,231120,998208,552
1968D
+5.5%
96,08284,766207,120
1964D
+27.5%
126,63371,979198,612
1960R
−5.4%
98,325109,602207,927
1956R
−16.9%
76,270107,278183,548
1952R
−7.0%
79,86091,905171,765
1948D
+12.2%
76,87960,048138,114
1944D
+13.1%
82,36763,336145,703
1940D
+19.6%
86,08457,866143,950
1936D
+24.8%
76,43044,742127,778
1932D
+1.9%
51,27049,267105,717
1928R
−29.7%
38,51771,279110,461
1924R
−35.7%
21,86050,84581,210
1920R
−9.0%
38,43346,49389,975
1916D
+9.9%
24,33919,68346,875
1912D
+13.2%
15,54410,34139,538
1908D
+1.2%
20,56620,06942,615
1904R
−21.8%
13,93322,14437,725
1900R
−9.2%
16,23619,60636,614
1896R
−8.2%
15,54018,33334,232
1892D
+3.1%
14,06713,19728,152
1888
No data
1884
No data
1880
No data
1876
No data
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
Polish
0.8%
African American
16.3%
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. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Language at home
Population aged 5 and older
0.0%
speak English only
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Other Christian
24.9%
Catholic & Orthodox
13.5%
Baptist
9.9%
Pentecostal & Holiness
4.1%
Mainline Protestant
3.4%
Methodist
2.8%
Non-Christian
2.0%
Source · 2020 US Religion Census. Remaining 39.4% of residents not counted as adherents by any reporting body.

Once reliably Democratic thanks to Dayton's union-heavy workforce, Montgomery County has shifted toward razor-thin margins, posting a D+0.5 result in 2024 as suburban realignment and post-industrial demographic change pulled it toward equilibrium.

The county's recent history is a story of close margins. The Democratic margin reached twenty-eight points in 1964; the Republican margin reached thirty-six points in 1924. Most other elections have been decided by single-digit points.

Montgomery County's demographics — a population of 536,096, a 68% non-Hispanic-white share, a median household income of $66,139 — 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 Pinellas County and Merrimack County.