Mississippi House of Representatives seat · lines in effect since 2026
Mississippi House District 66
A district of about 21,000 people, 65% Black, 26% of adults with a bachelor's degree. It votes D+31.6 relative to the nation for president.
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 race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2020 | 2024 | |
|---|---|---|
| U.S. Senate | D+34.8 | D+29.5 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 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 66.
Higher than 66% of seats.
Lower than 75% of seats.
Lower than 53% of seats.
Higher than 84% of seats.
Lower than 66% of seats.
Denser than 62% 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 5574% Black · 25% college gradsD+28.5Not up in 2026District 31
64% Black · 25% college gradsD+29.9Not up in 2026District 76
58% Black · 23% college gradsD+21.9Not up in 2026District 41
66% Black · 24% college gradsD+33.6Not 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