Mississippi House of Representatives seat · lines in effect since 2026
Mississippi House District 3
A district of about 20,000 people, 20% of adults with a bachelor's degree. It votes R+72.1 relative to the nation for president.
2023 election
Nov 7, 2023- Tracy Arnold (R) · won80.2%
- Jimmy Wayne Russell (D)19.8%
Source: OpenElections (from MS Secretary of State)Updated Sep 30, 2026, 12:47 PM ET
Where it sits among all 120 seats
Every Mississippi House of Representatives seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every election for this seat
15 races since 1971; the seat changed party 1 time. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2022 | |||
| 2023 | Tracy Arnold (R) | Jimmy Wayne Russell (D) | 60.4 |
| Lines first used in 2012 | |||
| 2019 | Tracy Arnold (R) | Janis Triplettpatterson (D) | 38.5 |
| 2015 | Tracy Arnold (R) | Lauren Childers (D) | 15.1 |
| Lines first used in 2002 | |||
| 2011 | Tracy Arnold (R)Flip | Tommy Dexter Cadle (D) | 5.4 |
| 2007 | William J. McCoy (D) | Tracy Arnold (R) | 24.3 |
| 2003 | William J. McCoy (D) | George Waddell (R) | 30.1 |
| Lines first used in 1992 | |||
| 1999 | William J. McCoy (D) | — | Unopposed |
| 1995 | William J. McCoy (D) | — | Unopposed |
| 1992 | William J. McCoy (D) | — | Unopposed |
| Lines first used in 1982 | |||
| 1991 | William J. McCoy (D) | — | Unopposed |
| 1987 | William J. McCoy (D) | — | Unopposed |
| 1983 | William J. McCoy (D) | — | Unopposed |
| Lines first used in 1972 | |||
| 1979 | William J. McCoy (D) | — | Unopposed |
| 1975 | Donald Chambliss (D) | — | Unopposed |
| Lines first used in 1962 | |||
| 1971 | Everett Slayden · T. M. Stone · Donald Chambliss (D) | O. D. Flynn (I) | 23.9 |
Primaries: 2015 Democratic primary · 1983 Democratic primary runoff · 1983 Democratic primary · 1979 Democratic primary · 1975 Democratic primary
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 3
The state's districts in other chambers that share residents with this one, and the share of District 3's area in each.
- U.S. House
- MS-1 100%
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2016 | 2020 | 2024 | |
|---|---|---|---|
| President | R+70.8 | R+72.3 | R+73.4 |
| U.S. Senate | No race | R+60.5 | R+72.5 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 PM ET
Who lives here, compared
Grey bars show the spread of all 120 seats. Small marks are other seats in Mississippi. The black marker is District 3.
Lower than 57% of seats.
Higher than 96% of seats.
Lower than 82% of seats.
Lower than 90% of seats.
Lower than 56% of seats.
Less dense than 70% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 107MississippiR+72.7Not up in 2026District 106
MississippiR+62.5Not up in 2026District 1
MississippiR+77.9Not up in 2026District 21
MississippiR+78.5Not up in 2026
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET