Greenville County, South Carolina

South Carolina House District 27

2 candidates are tracked for South Carolina House District 27 on the November 3, 2026 ballot: John MacCarthy and David Vaughan. Candidate information follows official Greenville County election filings; verify with the official election office linked below.

About this race

John MacCarthy (Democratic), David Vaughan (Republican) meet on the November 3 ballot; David Vaughan is the sitting member, per the House roster. South Carolina primaries require a majority (June 23 runoffs); unopposed nominees still print. The field is the SC Election Commission's Candidate Tracking System active list (read September 7, 2026). This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, David Vaughan, is on the ballot.

South Carolina › Greenville County › South Carolina House District 27

John MacCarthy

Democratic

Top priorities

Support the Palmetto State Teachers Association's policy agenda
Make housing, child care, health care, energy and transportation more affordable
Fully fund road improvements at high-accident locations

Per the campaign site.

Biography

MacCarthy spent 23 years as an engineer, including as a lead systems engineer at Northrop Grumman and TRW and five years advising a Pentagon official on technology policy, per the campaign site. He later directed the University of Maryland's systems engineering program and taught physics at Wofford College, and holds a Ph.D. in biophysics and biochemistry from Notre Dame, per the campaign site.

Campaign site (opens in a new tab)

David Vaughan

Republican Incumbent

Biography

David Vaughan is a general contractor and businessman who has owned his business since 1996, per the Legislature's roster. He represents Greenville County in House District 27. No campaign website was found as of September 7, 2026.

Next on your ballotSouth Carolina House District 28

See your full ballot

Voting info and more

Questions about this race

Who is running for South Carolina House District 27 in 2026?

When is the South Carolina House District 27 election in South Carolina?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for South Carolina are on the South Carolina election hub at theballotbrief.com.

How do I see my exact Greenville County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Greenville County and state election office filings, last verified September 27, 2026. Bios and priorities carry their attribution inline.

Cross-check with the official South Carolina election office, or see the full Greenville County sample ballot and your exact ballot by address.

The rest of your Greenville County ballot

34 tracked races in Greenville County, South Carolina. Landed here from another county's search? Look up your own ballot below.

Also on your ballot

South Carolina House District 35 Greenville County Probate Judge Greenville County Auditor See all 34 Greenville County races

Candidate profiles

John MacCarthy, full profile David Vaughan, full profile Official South Carolina election office