Data as of October 18, 2026 · refreshed automatically from the official Arkansas voter file
Union County, Arkansas has 18,305 active registered voters across 28 precincts, as of October 2026.
Party registration
Arkansas 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 | CB4 | 708 | 451 | 63.7% |
| 2 | SMA | 982 | 618 | 62.93% |
| 3 | STR | 427 | 266 | 62.3% |
| 4 | LAW | 460 | 285 | 61.96% |
| 5 | NOR | 901 | 558 | 61.93% |
| 6 | THR | 428 | 262 | 61.21% |
| 7 | UNI | 795 | 483 | 60.75% |
| 8 | CAL | 453 | 272 | 60.04% |
| 9 | CB6 | 864 | 513 | 59.38% |
| 10 | W1 | 1,849 | 1,069 | 57.82% |
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 Union County voted for president
Election results are public records.
Union County at a glance.
Union County had an estimated 37,008 residents in July 2024, the 21st most populous of Arkansas's 75 counties, down 5.2% since the 2020 census. Of those, 28,252 are 18 or older, the voting-age population, and 20.1% are 65 or older. Its 18,305 active registered voters equal about 64.8% of that voting-age population.
It covers 1,039 square miles of land (36 people per square mile), and 43.9% of residents live outside any incorporated city or town. The largest cities and towns are El Dorado (16,657), Smackover (1,573), Norphlet (719), Junction City (480) and Huttig (430). The American Community Survey (2020-2024) puts it at a median age of 41.4, a median household income of $55,259, 19.1% of adults 25 and older holding a bachelor's degree or higher and 72.7% of occupied homes owned by the people living in them.
In 2024, 15,448 votes were cast for president, about 54.7% of the voting-age population; the Democratic ticket took 32.5% and the Republican ticket 66.0%. The two-party margin moved from R+26.2 in 2008 to R+33.5 in 2024.
- Population (2024 estimate)
- 37,008
- Population (2020 census base)
- 39,057
- Voting-age population (18+)
- 28,252
- Active voters per 100 adults
- 64.8
- Residents 65 and older
- 20.1%
- People per square mile
- 36
- Living outside incorporated places
- 43.9%
- Land area
- 1,039 sq mi
- Median age
- 41.4
- Median household income
- $55,259
- Adults 25+ with a bachelor's degree
- 19.1%
- Owner-occupied homes
- 72.7%
Largest cities and towns
- El Dorado 16,657
- Smackover 1,573
- Norphlet 719
- Junction City 480
- Huttig 430
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 32.5% | 66.0% | R+33.5 | 15,448 |
| 2020 | 33.6% | 63.1% | R+29.5 | 16,607 |
| 2016 | 34.7% | 62.4% | R+27.7 | 16,338 |
| 2012 | 36.0% | 62.3% | R+26.3 | 17,160 |
| 2008 | 36.0% | 62.2% | R+26.2 | 17,179 |
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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