MA · Pedreiras immediate region

São Roberto: how it voted for president

In the 2026 runoff, Lula won São Roberto with 77.90% of valid votes against 22.10% for Flavio Bolsonaro: a margin of 55.79 points, 52.22 points left of Brazil.

Solid left

Lean versus Brazil: −64.04pts; Weighted mean of the municipality's right − left margin minus Brazil's in the 2026, 2022, 2018 and 2014 runoffs.
Electorate (2026): 4,547; 214th largest electorate in Maranhão
Side changes: 1; 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 Maranhão

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 Roberto−55.79 pts
Maranhão−39.08 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)77.90% Flavio Bolsonaro (PL)22.10%	−55.79 pts	Left bloc	77.79%
2026 10/04/2026	Round 1	Lula (PT)73.24% Flavio Bolsonaro (PL)23.56% Escritor Augusto Cury (AVANTE)1.34% Renan Santos (MISSÃO)0.87% +8 more Ronaldo Caiado (PSD)0.81% Zema (NOVO)0.06% Samara (UP)0.06% 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%	−49.33 pts	Left bloc	78.40%
2022 10/30/2022	Round 2	Lula (PT)83.32% Jair Bolsonaro (PL)16.68%	−66.65 pts	Left bloc	73.98%
2022 10/02/2022	Round 1	Lula (PT)80.65% Jair Bolsonaro (PL)16.66% Ciro Gomes (PDT)1.71% Simone Tebet (MDB)0.67% +7 more Soraya Thronicke (UNIÃO)0.23% Padre Kelmon (PTB)0.06% Felipe D Avila (NOVO)0.03% Vera (PSTU)0.00% Sofia Manzano (PCB)0.00% Constituinte Eymael (DC)0.00% Léo Péricles (UP)0.00%	−64.72 pts	Left bloc	74.66%
2018 10/28/2018	Round 2	Fernando Haddad (PT)86.87% Jair Bolsonaro (PSL)13.13%	−73.73 pts	Left bloc	72.03%
2018 10/07/2018	Round 1	Fernando Haddad (PT)74.00% Jair Bolsonaro (PSL)11.77% Ciro Gomes (PDT)10.41% Henrique Meirelles (MDB)2.28% +9 more Cabo Daciolo (PATRI)0.52% Geraldo Alckmin (PSDB)0.46% Marina Silva (REDE)0.18% João Amoêdo (NOVO)0.15% Guilherme Boulos (PSOL)0.15% Alvaro Dias (PODE)0.06% Vera (PSTU)0.00% Eymael (DC)0.00% João Goulart Filho (PPL)0.00%	−69.50 pts	Left bloc	75.55%
2014 10/26/2014	Round 2	Dilma (PT)86.12% Aécio Neves (PSDB)13.88%	−72.25 pts	Left bloc	70.22%
2014 10/05/2014	Round 1	Dilma (PT)84.43% Marina Silva (PSB)7.57% Aécio Neves (PSDB)7.35% Pastor Everaldo (PSC)0.40% +7 more Levy Fidelix (PRTB)0.15% Eduardo Jorge (PV)0.07% Eymael (PSDC)0.04% Zé Maria (PSTU)0.00% Mauro Iasi (PCB)0.00% Rui Costa Pimenta (PCO)0.00% Luciana Genro (PSOL)0.00%	−84.13 pts	Left bloc	72.85%
2010 10/31/2010	Round 2	Dilma (PT)86.41% José Serra (PSDB)13.59%	−72.82 pts	Left bloc	71.68%
2010 10/03/2010	Round 1	Dilma (PT)83.51% José Serra (PSDB)12.89% Marina Silva (PV)3.53% Eymael (PSDC)0.07%	−74.08 pts	Left bloc	79.13%
2006 10/29/2006	Round 2	Lula (PT)95.52% Geraldo Alckmin (PSDB)4.48%	−91.03 pts	Left bloc	78.20%
2006 10/01/2006	Round 1	Lula (PT)85.91% Geraldo Alckmin (PSDB)9.64% Cristovam Buarque (PDT)3.98% Heloísa Helena (PSOL)0.40% +2 more Luciano Bivar (PSL)0.04% José Maria Eymael (PSDC)0.04%	−80.58 pts	Left bloc	81.49%
2002 10/27/2002	Round 2	Lula (PT)62.87% José Serra (PSDB)37.13%	−25.74 pts	Left bloc	65.57%
2002 10/06/2002	Round 1	Ciro (PPS)49.63% Lula (PT)28.54% Garotinho (PSB)13.26% José Serra (PSDB)8.36% +2 more Zé Maria (PSTU)0.11% Rui Costa Pimenta (PCO)0.11%	−83.28 pts	Left bloc	83.27%
1998 10/04/1998	Round 1	Fernando Henrique (PSDB)51.68% Lula (PT)26.03% Ciro Gomes (PPS)14.95% Brigadeiro Ivan Frota (PMN)1.65% +8 more Zé Maria (PSTU)1.33% Enéas (PRONA)1.27% Eymael (PSDC)0.82% Sirkis (PV)0.70% Thereza Ruiz (PTN)0.44% João de Deus Barbosa (PT do B)0.44% Sergio Bueno (PSC)0.38% Vasco Neto (PSN)0.32%	+9.82 pts	Right bloc	73.86%

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 Pedreiras immediate region

Find another municipality

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.