Voter file loaded June 5, 2026 · figures are from that file, held as a fixed record
Shelby County, Ohio has 28,013 active registered voters across 36 precincts, as of June 2026.
Party registration
Ohio doesn't register voters by party, so there's no party breakdown to show. Party lean is usually inferred from primary participation; that data is in the voter file and available inside Motion51.
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | PRECINCT 0025 LORAMIE WEST | 912 | 722 | 79.17% |
| 2 | PRECINCT 0019 DINSMORE | 914 | 694 | 75.93% |
| 3 | PRECINCT 0016 CYNTHIAN WEST | 719 | 543 | 75.52% |
| 4 | PRECINCT 0031 SALEM W | 665 | 499 | 75.04% |
| 5 | PRECINCT 0027 MCLEAN | 1,168 | 870 | 74.49% |
| 6 | PRECINCT 0026 FORT LORAMIE VLG | 1,044 | 762 | 72.99% |
| 7 | PRECINCT 0034 VAN BUREN SOUTH | 850 | 620 | 72.94% |
| 8 | PRECINCT 0015 CYNTHIAN EAST | 569 | 411 | 72.23% |
| 9 | PRECINCT 0024 LORAMIE EAST | 687 | 494 | 71.91% |
| 10 | PRECINCT 0020 FRANKLIN | 1,099 | 788 | 71.7% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
How Shelby County voted for president
Election results are public records.
Shelby County at a glance.
Shelby County had an estimated 47,952 residents in July 2024, the 50th most populous of Ohio's 88 counties, down 0.6% since the 2020 census. Of those, 36,335 are 18 or older, the voting-age population, and 19.0% are 65 or older. Its 28,013 active registered voters equal about 77.1% of that voting-age population.
It covers 408 square miles of land (118 people per square mile). The largest cities and towns are Sidney (20,392), Fort Loramie (1,589), Anna (1,465), Jackson Center (1,438) and Botkins (1,183). The American Community Survey (2020-2024) puts it at a median age of 40.3, a median household income of $73,978, 21.4% of adults 25 and older holding a bachelor's degree or higher and 73.7% of occupied homes owned by the people living in them.
In 2024, 25,288 votes were cast for president, about 69.6% of the voting-age population; the Democratic ticket took 17.2% and the Republican ticket 82.0%. The two-party margin moved from R+36.4 in 2008 to R+64.8 in 2024.
- Population (2024 estimate)
- 47,952
- Population (2020 census base)
- 48,233
- Voting-age population (18+)
- 36,335
- Active voters per 100 adults
- 77.1
- Residents 65 and older
- 19.0%
- People per square mile
- 118
- Land area
- 408 sq mi
- Median age
- 40.3
- Median household income
- $73,978
- Adults 25+ with a bachelor's degree
- 21.4%
- Owner-occupied homes
- 73.7%
Largest cities and towns
- Sidney 20,392
- Fort Loramie 1,589
- Anna 1,465
- Jackson Center 1,438
- Botkins 1,183
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 17.2% | 82.0% | R+64.8 | 25,288 |
| 2020 | 17.7% | 80.9% | R+63.2 | 25,258 |
| 2016 | 17.9% | 78.5% | R+60.6 | 23,110 |
| 2012 | 26.2% | 72.2% | R+46.0 | 23,129 |
| 2008 | 30.9% | 67.3% | R+36.4 | 23,668 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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