PI · Amarante - Água Branca - Regeneração immediate region

São Miguel da Baixa Grande: how it voted for president

In the 2026 runoff, Lula won São Miguel da Baixa Grande with 73.23% of valid votes against 26.77% for Flavio Bolsonaro: a margin of 46.45 points, 42.88 points left of Brazil.

Solid left

Lean versus Brazil: −52.61pts; Weighted mean of the municipality's right − left margin minus Brazil's in the 2026, 2022, 2018 and 2014 runoffs.
Electorate (2026): 2,835; 218th largest electorate in Piauí
Side changes: 0; Times the leading bloc changed from one election to the next, in 8 elections since 1994.
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.

São Miguel da Baixa Grande−46.45 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)73.23% Flavio Bolsonaro (PL)26.77%	−46.45 pts	Left bloc	75.38%
2026 10/04/2026	Round 1	Lula (PT)67.29% Flavio Bolsonaro (PL)27.73% Escritor Augusto Cury (AVANTE)2.88% Renan Santos (MISSÃO)1.14% +8 more Ronaldo Caiado (PSD)0.87% Clariana Barao (DC)0.05% Rui Costa Pimenta (PCO)0.05% Hertz Dias (PSTU)0.00% Edmilson Costa (PCB)0.00% Zema (NOVO)0.00% Veterinário Wilson Grassi (DEMOCRATA)0.00% Samara (UP)0.00%	−40.43 pts	Left bloc	79.37%
2022 10/30/2022	Round 2	Lula (PT)79.75% Jair Bolsonaro (PL)20.25%	−59.49 pts	Left bloc	78.80%
2022 10/02/2022	Round 1	Lula (PT)76.56% Jair Bolsonaro (PL)19.56% Ciro Gomes (PDT)1.91% Simone Tebet (MDB)1.60% +7 more Soraya Thronicke (UNIÃO)0.36% Padre Kelmon (PTB)0.00% Vera (PSTU)0.00% Sofia Manzano (PCB)0.00% Constituinte Eymael (DC)0.00% Felipe D Avila (NOVO)0.00% Léo Péricles (UP)0.00%	−56.96 pts	Left bloc	80.46%
2018 10/28/2018	Round 2	Fernando Haddad (PT)75.95% Jair Bolsonaro (PSL)24.05%	−51.89 pts	Left bloc	76.00%
2018 10/07/2018	Round 1	Fernando Haddad (PT)64.29% Jair Bolsonaro (PSL)21.59% Ciro Gomes (PDT)10.33% Henrique Meirelles (MDB)1.63% +9 more Geraldo Alckmin (PSDB)1.17% João Amoêdo (NOVO)0.29% Marina Silva (REDE)0.23% Alvaro Dias (PODE)0.18% Guilherme Boulos (PSOL)0.18% Vera (PSTU)0.06% Cabo Daciolo (PATRI)0.06% Eymael (DC)0.00% João Goulart Filho (PPL)0.00%	−50.17 pts	Left bloc	80.99%
2014 10/26/2014	Round 2	Dilma (PT)80.21% Aécio Neves (PSDB)19.79%	−60.42 pts	Left bloc	72.46%
2014 10/05/2014	Round 1	Dilma (PT)70.19% Aécio Neves (PSDB)18.72% Marina Silva (PSB)9.73% Eduardo Jorge (PV)0.74% +5 more Pastor Everaldo (PSC)0.23% Zé Maria (PSTU)0.17% Luciana Genro (PSOL)0.11% Eymael (PSDC)0.06% Levy Fidelix (PRTB)0.06%	−61.88 pts	Left bloc	80.64%
2010 10/31/2010	Round 2	Dilma (PT)77.76% José Serra (PSDB)22.24%	−55.53 pts	Left bloc	75.83%
2010 10/03/2010	Round 1	Dilma (PT)75.06% José Serra (PSDB)17.33% Marina Silva (PV)7.24% Plínio (PSOL)0.19% +3 more Zé Maria (PSTU)0.06% Ivan Pinheiro (PCB)0.06% Eymael (PSDC)0.06%	−65.22 pts	Left bloc	84.00%
2006 10/29/2006	Round 2	Lula (PT)82.18% Geraldo Alckmin (PSDB)17.82%	−64.35 pts	Left bloc	76.39%
2006 10/01/2006	Round 1	Lula (PT)71.68% Geraldo Alckmin (PSDB)25.19% Cristovam Buarque (PDT)1.63% Heloísa Helena (PSOL)1.44% +1 more Luciano Bivar (PSL)0.06%	−49.50 pts	Left bloc	85.27%
2002 10/27/2002	Round 2	Lula (PT)59.44% José Serra (PSDB)40.56%	−18.89 pts	Left bloc	74.55%
2002 10/06/2002	Round 1	Ciro (PPS)44.77% Lula (PT)39.90% Garotinho (PSB)8.57% José Serra (PSDB)6.60% +1 more Zé Maria (PSTU)0.16%	−86.81 pts	Left bloc	82.46%
1998 10/04/1998	Round 1	Ciro Gomes (PPS)39.09% Fernando Henrique (PSDB)34.63% Lula (PT)15.31% João de Deus Barbosa (PT do B)3.20% +8 more Enéas (PRONA)2.17% Brigadeiro Ivan Frota (PMN)1.94% Eymael (PSDC)1.49% Sirkis (PV)0.80% Zé Maria (PSTU)0.69% Sergio Bueno (PSC)0.46% Thereza Ruiz (PTN)0.11% Vasco Neto (PSN)0.11%	−22.06 pts	Left bloc	74.16%

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

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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.