Voter file loaded July 20, 2026 · figures are from that file, held as a fixed record
Bingham County, Idaho has 23,662 active registered voters — 72.3% Republican, 6.8% Democratic, and 19.7% with no party affiliation, as of July 2026.
Party registration
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 012 | 840 | 438 | 52.14% |
| 2 | 018 | 618 | 320 | 51.78% |
| 3 | 024 | 711 | 361 | 50.77% |
| 4 | 011 | 563 | 280 | 49.73% |
| 5 | 022 | 1,013 | 499 | 49.26% |
| 6 | 010 | 961 | 464 | 48.28% |
| 7 | 007 | 1,251 | 603 | 48.2% |
| 8 | 017 | 1,064 | 508 | 47.74% |
| 9 | 025 | 788 | 372 | 47.21% |
| 10 | 019 | 539 | 253 | 46.94% |
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 Bingham County voted for president
Election results are public records.
Bingham County at a glance.
Bingham County had an estimated 50,889 residents in July 2024, the ninth most populous of Idaho's 44 counties, up 6.1% since the 2020 census. Of those, 36,609 are 18 or older, the voting-age population, and 15.9% are 65 or older. Its 23,662 active registered voters equal about 64.6% of that voting-age population.
It covers 2,094 square miles of land (24 people per square mile), and 58.2% of residents live outside any incorporated city or town. The largest cities and towns are Blackfoot (13,224), Shelley (5,262), Aberdeen (1,856), Firth (542) and Basalt (374). The American Community Survey (2020-2024) puts it at a median age of 35.0, a median household income of $77,878, 21.8% of adults 25 and older holding a bachelor's degree or higher and 80.5% of occupied homes owned by the people living in them.
In 2024, 20,643 votes were cast for president, about 56.4% of the voting-age population; the Democratic ticket took 18.8% and the Republican ticket 78.4%. The two-party margin moved from R+45.5 in 2008 to R+59.6 in 2024.
- Population (2024 estimate)
- 50,889
- Population (2020 census base)
- 47,983
- Voting-age population (18+)
- 36,609
- Active voters per 100 adults
- 64.6
- Residents 65 and older
- 15.9%
- People per square mile
- 24
- Living outside incorporated places
- 58.2%
- Land area
- 2,094 sq mi
- Median age
- 35.0
- Median household income
- $77,878
- Adults 25+ with a bachelor's degree
- 21.8%
- Owner-occupied homes
- 80.5%
Largest cities and towns
- Blackfoot 13,224
- Shelley 5,262
- Aberdeen 1,856
- Firth 542
- Basalt 374
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 18.8% | 78.4% | R+59.6 | 20,643 |
| 2020 | 20.5% | 76.1% | R+55.6 | 20,094 |
| 2016 | 17.6% | 65.6% | R+48.0 | 16,625 |
| 2012 | 21.7% | 76.4% | R+54.7 | 17,603 |
| 2008 | 25.8% | 71.3% | R+45.5 | 17,155 |
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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