TO · Palmas immediate region

Rio Sono: how it voted for president

In the 2026 runoff, Lula won Rio Sono with 52.45% of valid votes against 47.55% for Flavio Bolsonaro: a margin of 4.89 points, 1.32 points left of Brazil.

Likely left

Lean versus Brazil: −14.90pts; Weighted mean of the municipality's right − left margin minus Brazil's in the 2026, 2022, 2018 and 2014 runoffs.
Electorate (2026): 4,295; 65th largest electorate in Tocantins
Side changes: 1; Times the leading bloc changed from one election to the next, in 9 elections since 1994.
Bellwether?: No; Has voted for the national winner since 2022.

On the map of Tocantins

2026 runoff, colored by margin: pale in tight races, deep in landslides. Click a municipality to open its page.

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← Left bloc aheadRight bloc ahead →

Margin in percentage points of valid votes (right − left).

Municipality, state and Brazil

Right − left margin in the 2026 runoff, in percentage points.

Rio Sono−4.89 pts
Tocantins+2.74 pts
Brazil−3.57 pts

Negative = left ahead; positive = right ahead.

Margin over time

Right − left margin in each election (the runoff where there was one), compared with Brazil's.

Every election

Year	Round	Candidates (% of valid votes)	Margin (right − left)	Bloc ahead	Turnout
2026 10/25/2026	Round 2	Lula (PT)52.45% Flavio Bolsonaro (PL)47.55%	−4.89 pts	Left bloc	82.21%
2026 10/04/2026	Round 1	Lula (PT)49.29% Flavio Bolsonaro (PL)46.72% Escritor Augusto Cury (AVANTE)1.80% Ronaldo Caiado (PSD)1.69% +8 more Renan Santos (MISSÃO)0.44% Hertz Dias (PSTU)0.03% Veterinário Wilson Grassi (DEMOCRATA)0.03% Edmilson Costa (PCB)0.00% Clariana Barao (DC)0.00% Rui Costa Pimenta (PCO)0.00% Zema (NOVO)0.00% Samara (UP)0.00%	−2.24 pts	Left bloc	86.19%
2022 10/30/2022	Round 2	Lula (PT)57.61% Jair Bolsonaro (PL)42.39%	−15.22 pts	Left bloc	80.25%
2022 10/02/2022	Round 1	Lula (PT)55.59% Jair Bolsonaro (PL)39.89% Simone Tebet (MDB)2.53% Ciro Gomes (PDT)1.58% +7 more Soraya Thronicke (UNIÃO)0.24% Felipe D Avila (NOVO)0.15% Padre Kelmon (PTB)0.03% Vera (PSTU)0.00% Sofia Manzano (PCB)0.00% Constituinte Eymael (DC)0.00% Léo Péricles (UP)0.00%	−14.33 pts	Left bloc	85.24%
2018 10/28/2018	Round 2	Fernando Haddad (PT)62.76% Jair Bolsonaro (PSL)37.24%	−25.51 pts	Left bloc	71.97%
2018 10/07/2018	Round 1	Fernando Haddad (PT)52.89% Jair Bolsonaro (PSL)36.73% Ciro Gomes (PDT)5.21% Geraldo Alckmin (PSDB)2.92% +9 more Cabo Daciolo (PATRI)0.70% Marina Silva (REDE)0.60% João Amoêdo (NOVO)0.56% Henrique Meirelles (MDB)0.18% Alvaro Dias (PODE)0.11% Guilherme Boulos (PSOL)0.11% Vera (PSTU)0.00% Eymael (DC)0.00% João Goulart Filho (PPL)0.00%	−17.59 pts	Left bloc	81.02%
2014 10/26/2014	Round 2	Dilma (PT)67.59% Aécio Neves (PSDB)32.41%	−35.17 pts	Left bloc	76.18%
2014 10/05/2014	Round 1	Dilma (PT)62.47% Aécio Neves (PSDB)20.10% Marina Silva (PSB)15.83% Pastor Everaldo (PSC)1.04% +5 more Levy Fidelix (PRTB)0.28% Luciana Genro (PSOL)0.10% Zé Maria (PSTU)0.07% Eduardo Jorge (PV)0.07% Mauro Iasi (PCB)0.03%	−57.15 pts	Left bloc	85.14%
2010 10/31/2010	Round 2	Dilma (PT)68.53% José Serra (PSDB)31.47%	−37.07 pts	Left bloc	82.57%
2010 10/03/2010	Round 1	Dilma (PT)64.57% José Serra (PSDB)24.18% Marina Silva (PV)10.73% Plínio (PSOL)0.39% +2 more Ivan Pinheiro (PCB)0.07% Levy Fidelix (PRTB)0.07%	−51.51 pts	Left bloc	92.06%
2006 10/29/2006	Round 2	Lula (PT)64.28% Geraldo Alckmin (PSDB)35.72%	−28.55 pts	Left bloc	72.75%
2006 10/01/2006	Round 1	Lula (PT)54.59% Geraldo Alckmin (PSDB)43.06% Heloísa Helena (PSOL)1.32% Cristovam Buarque (PDT)0.89% +2 more Ana Maria Rangel (PRP)0.10% José Maria Eymael (PSDC)0.03%	−13.61 pts	Left bloc	84.75%
2002 10/27/2002	Round 2	Lula (PT)56.03% José Serra (PSDB)43.97%	−12.06 pts	Left bloc	61.99%
2002 10/06/2002	Round 1	Lula (PT)44.60% José Serra (PSDB)40.70% Garotinho (PSB)9.93% Ciro (PPS)4.72% +1 more Zé Maria (PSTU)0.05%	−18.60 pts	Left bloc	77.33%
1998 10/04/1998	Round 1	Fernando Henrique (PSDB)64.79% Lula (PT)17.88% Ciro Gomes (PPS)11.70% Enéas (PRONA)2.15% +8 more João de Deus Barbosa (PT do B)0.83% Brigadeiro Ivan Frota (PMN)0.77% Zé Maria (PSTU)0.61% Eymael (PSDC)0.44% Sirkis (PV)0.33% Thereza Ruiz (PTN)0.22% Sergio Bueno (PSC)0.17% Vasco Neto (PSN)0.11%	+35.76 pts	Right bloc	76.19%
1994 10/03/1994	Round 1	Fernando Henrique Cardoso (PSDB)58.10% Luiz Inacio Lula da Silva (PT)24.08% Orestes Quercia (PMDB)11.99% Eneas Ferreira Carneiro (PRONA)2.29% +4 more Carlos Antonio Gomes (PRN)2.08% Leonel de Moura Brizola (PDT)1.04% Esperidiao Amin Helou Filho (PPR)0.36% Hernani Goulart Fortuna (PSC)0.05%	+49.77 pts	Right bloc	65.48%

Percentages of valid votes in the municipality. Turnout = voters over the electorate. Source: TSE.

When the municipality changed sides

2002(Round 2)·Right bloc→Left bloc

Other municipalities in the Palmas immediate region

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Official TSE results by municipality (1994–2026); the 2026 runoff comes from the TSE's official results publication. Every municipality's index can be downloaded at /dados.