PI · Canto do Buriti immediate region

Tamboril do Piauí: how it voted for president

In the 2026 runoff, Lula won Tamboril do Piauí with 82.91% of valid votes against 17.09% for Flavio Bolsonaro: a margin of 65.81 points, 62.24 points left of Brazil.

Solid leftSwing

Lean versus Brazil: −68.21pts; Weighted mean of the municipality's right − left margin minus Brazil's in the 2026, 2022, 2018 and 2014 runoffs.
Electorate (2026): 2,988; 215th largest electorate in Piauí
Side changes: 1; Times the leading bloc changed from one election to the next, in 8 elections since 1994. Plus 2 turn(s) between round 1 and round 2 of the same year.
Bellwether?: No; Has voted for the national winner since 2022.

On the map of Piauí

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.

Tamboril do Piauí−65.81 pts
Piauí−51.75 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)82.91% Flavio Bolsonaro (PL)17.09%	−65.81 pts	Left bloc	80.25%
2026 10/04/2026	Round 1	Lula (PT)76.96% Flavio Bolsonaro (PL)18.69% Escritor Augusto Cury (AVANTE)2.99% Renan Santos (MISSÃO)0.94% +8 more Ronaldo Caiado (PSD)0.43% Hertz Dias (PSTU)0.00% Edmilson Costa (PCB)0.00% Clariana Barao (DC)0.00% Rui Costa Pimenta (PCO)0.00% Zema (NOVO)0.00% Veterinário Wilson Grassi (DEMOCRATA)0.00% Samara (UP)0.00%	−59.90 pts	Left bloc	82.44%
2022 10/30/2022	Round 2	Lula (PT)85.55% Jair Bolsonaro (PL)14.45%	−71.10 pts	Left bloc	81.30%
2022 10/02/2022	Round 1	Lula (PT)82.71% Jair Bolsonaro (PL)12.55% Ciro Gomes (PDT)3.17% Simone Tebet (MDB)0.88% +7 more Soraya Thronicke (UNIÃO)0.59% Padre Kelmon (PTB)0.05% Sofia Manzano (PCB)0.05% Vera (PSTU)0.00% Constituinte Eymael (DC)0.00% Felipe D Avila (NOVO)0.00% Léo Péricles (UP)0.00%	−71.88 pts	Left bloc	80.78%
2018 10/28/2018	Round 2	Fernando Haddad (PT)87.99% Jair Bolsonaro (PSL)12.01%	−75.97 pts	Left bloc	81.26%
2018 10/07/2018	Round 1	Fernando Haddad (PT)78.83% Jair Bolsonaro (PSL)8.80% Ciro Gomes (PDT)6.29% Cabo Daciolo (PATRI)3.63% +9 more Henrique Meirelles (MDB)1.01% Geraldo Alckmin (PSDB)0.75% Marina Silva (REDE)0.27% João Amoêdo (NOVO)0.21% Alvaro Dias (PODE)0.16% Guilherme Boulos (PSOL)0.05% Vera (PSTU)0.00% Eymael (DC)0.00% João Goulart Filho (PPL)0.00%	−70.88 pts	Left bloc	82.27%
2014 10/26/2014	Round 2	Dilma (PT)78.04% Aécio Neves (PSDB)21.96%	−56.07 pts	Left bloc	68.75%
2014 10/05/2014	Round 1	Dilma (PT)70.03% Aécio Neves (PSDB)20.17% Marina Silva (PSB)9.22% Pastor Everaldo (PSC)0.29% +4 more Eduardo Jorge (PV)0.12% Mauro Iasi (PCB)0.06% Levy Fidelix (PRTB)0.06% Luciana Genro (PSOL)0.06%	−58.96 pts	Left bloc	70.28%
2010 10/31/2010	Round 2	José Serra (PSDB)50.49% Dilma (PT)49.51%	+0.98 pts	Right bloc	73.89%
2010 10/03/2010	Round 1	Dilma (PT)54.95% José Serra (PSDB)39.14% Marina Silva (PV)5.61% Ivan Pinheiro (PCB)0.30%	−21.72 pts	Left bloc	75.18%
2006 10/29/2006	Round 2	Geraldo Alckmin (PSDB)55.52% Lula (PT)44.48%	+11.04 pts	Right bloc	79.36%
2006 10/01/2006	Round 1	Geraldo Alckmin (PSDB)60.69% Lula (PT)37.77% Cristovam Buarque (PDT)0.97% Ana Maria Rangel (PRP)0.29% +1 more Heloísa Helena (PSOL)0.29%	+21.95 pts	Right bloc	81.48%
2002 10/27/2002	Round 2	José Serra (PSDB)79.35% Lula (PT)20.65%	+58.69 pts	Right bloc	74.21%
2002 10/06/2002	Round 1	Ciro (PPS)49.93% José Serra (PSDB)26.77% Lula (PT)15.37% Garotinho (PSB)7.93%	−46.45 pts	Left bloc	78.57%
1998 10/04/1998	Round 1	Fernando Henrique (PSDB)74.74% Lula (PT)9.77% Ciro Gomes (PPS)7.32% Brigadeiro Ivan Frota (PMN)1.69% +8 more Zé Maria (PSTU)1.50% Enéas (PRONA)1.03% João de Deus Barbosa (PT do B)1.03% Eymael (PSDC)0.85% Thereza Ruiz (PTN)0.66% Vasco Neto (PSN)0.66% Sergio Bueno (PSC)0.38% Sirkis (PV)0.38%	+56.62 pts	Right bloc	79.25%

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

When the municipality changed sides

2002(between rounds)·Left bloc→Right bloc
2010(between rounds)·Left bloc→Right bloc
2014(Round 2)·Right bloc→Left bloc

Other municipalities in the Canto do Buriti 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.