Mississippi House of Representatives seat · lines in effect since 2026
Mississippi House District 12
A district of about 24,000 people, 23% Black, 60% of adults with a bachelor's degree. It votes R+10.3 relative to the nation for president.
2023 election
Nov 7, 2023- Clay Deweese (R) · won62.2%
- Donna Niewlaroski (D)37.8%
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 | Clay Deweese (R) | Donna Niewlaroski (D) | 24.5 |
| Lines first used in 2012 | |||
| 2019 | Clay Deweese (R)Flip | Tiffany Kilpatrick (D) | 2.6 |
| 2015 | J. P. Hughes Jr. (D) | Brad Mayo (R) | 10.2 |
| Lines first used in 2002 | |||
| 2011 | Brad Mayo (R) | Hollaman Raney (D) | 19.4 |
| 2007 | Noal Akins (R) | Jim Payne (D) | 24.8 |
| 2003 | Noal Akins (R) | John W. Eads (D) | 5.1 |
| Lines first used in 1992 | |||
| 1999 | John W. Eads (D) | David Magee (R) | 25.5 |
| 1995 | Edwin Perry (D) | Thomas B. Ferrell (R) | 31.6 |
| 1992 | Edwin Perry (D) | Dennis C. Roberts (R) | 29.5 |
| Lines first used in 1982 | |||
| 1991 | Edwin Perry (D) | — | Unopposed |
| 1987 | Edwin Perry (D) | — | Unopposed |
| 1983 | Edwin Perry (D) | — | Unopposed |
| Lines first used in 1972 | |||
| 1979 | Edwin Perry (D) | — | Unopposed |
| 1975 | George Payne Cossar Sr. (D) | — | Unopposed |
| Lines first used in 1962 | |||
| 1971 | George Payne Cossar Sr. (D) | Eugene Carter (I) | 50.3 |
Primaries: 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 12
The state's districts in other chambers that share residents with this one, and the share of District 12's area in each.
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+3.4 | D+0.6 | R+13.5 |
| U.S. Senate | No race | D+6.8 | R+19.8 |
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 12.
Higher than 98% of seats.
Lower than 86% of seats.
Higher than 68% of seats.
Lower than 65% of seats.
Higher than 94% of seats.
Denser than 87% 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 5635% Black · 50% college gradsR+19.6Not up in 2026District 43
24% Black · 55% college gradsR+14.4Not up in 2026District 58
62% college gradsR+47.3Not up in 2026District 24
27% Black · 44% college gradsR+36.7Not 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