PI · Picos immediate region

São Luis do Piauí: how it voted for president

In the 2026 runoff, Lula won São Luis do Piauí with 83.19% of valid votes against 16.81% for Flavio Bolsonaro: a margin of 66.38 points, 62.81 points left of Brazil.

Solid left

Lean versus Brazil: −68.33pts; Weighted mean of the municipality's right − left margin minus Brazil's in the 2026, 2022, 2018 and 2014 runoffs.
Electorate (2026): 3,573; 204th largest electorate in Piauí
Side changes: 1; Times the leading bloc changed from one election to the next, in 8 elections since 1994. Plus 1 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.

São Luis do Piauí−66.38 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)83.19% Flavio Bolsonaro (PL)16.81%	−66.38 pts	Left bloc	76.57%
2026 10/04/2026	Round 1	Lula (PT)78.48% Flavio Bolsonaro (PL)17.00% Escritor Augusto Cury (AVANTE)2.57% Renan Santos (MISSÃO)1.52% +8 more Ronaldo Caiado (PSD)0.33% Edmilson Costa (PCB)0.04% Clariana Barao (DC)0.04% Rui Costa Pimenta (PCO)0.04% Hertz Dias (PSTU)0.00% Zema (NOVO)0.00% Veterinário Wilson Grassi (DEMOCRATA)0.00% Samara (UP)0.00%	−62.24 pts	Left bloc	79.97%
2022 10/30/2022	Round 2	Lula (PT)83.00% Jair Bolsonaro (PL)17.00%	−66.00 pts	Left bloc	84.84%
2022 10/02/2022	Round 1	Lula (PT)83.76% Jair Bolsonaro (PL)11.72% Ciro Gomes (PDT)3.12% Simone Tebet (MDB)0.92% +7 more Soraya Thronicke (UNIÃO)0.40% Constituinte Eymael (DC)0.04% Felipe D Avila (NOVO)0.04% Padre Kelmon (PTB)0.00% Vera (PSTU)0.00% Sofia Manzano (PCB)0.00% Léo Péricles (UP)0.00%	−73.75 pts	Left bloc	87.03%
2018 10/28/2018	Round 2	Fernando Haddad (PT)88.66% Jair Bolsonaro (PSL)11.34%	−77.32 pts	Left bloc	87.67%
2018 10/07/2018	Round 1	Fernando Haddad (PT)78.55% Ciro Gomes (PDT)10.64% Jair Bolsonaro (PSL)7.56% Geraldo Alckmin (PSDB)1.30% +9 more Henrique Meirelles (MDB)0.54% Marina Silva (REDE)0.38% João Amoêdo (NOVO)0.32% Cabo Daciolo (PATRI)0.27% Guilherme Boulos (PSOL)0.22% Alvaro Dias (PODE)0.16% Vera (PSTU)0.05% Eymael (DC)0.00% João Goulart Filho (PPL)0.00%	−79.69 pts	Left bloc	91.05%
2014 10/26/2014	Round 2	Dilma (PT)83.81% Aécio Neves (PSDB)16.19%	−67.63 pts	Left bloc	75.23%
2014 10/05/2014	Round 1	Dilma (PT)80.91% Marina Silva (PSB)10.72% Aécio Neves (PSDB)7.83% Luciana Genro (PSOL)0.16% +5 more Pastor Everaldo (PSC)0.11% Levy Fidelix (PRTB)0.11% Zé Maria (PSTU)0.05% Mauro Iasi (PCB)0.05% Eduardo Jorge (PV)0.05%	−83.91 pts	Left bloc	79.79%
2010 10/31/2010	Round 2	Dilma (PT)69.02% José Serra (PSDB)30.98%	−38.05 pts	Left bloc	79.04%
2010 10/03/2010	Round 1	Dilma (PT)72.51% José Serra (PSDB)20.87% Marina Silva (PV)6.20% Eymael (PSDC)0.18% +2 more Plínio (PSOL)0.18% Ivan Pinheiro (PCB)0.06%	−57.90 pts	Left bloc	82.54%
2006 10/29/2006	Round 2	Lula (PT)72.16% Geraldo Alckmin (PSDB)27.84%	−44.32 pts	Left bloc	81.35%
2006 10/01/2006	Round 1	Lula (PT)57.13% Geraldo Alckmin (PSDB)39.16% Heloísa Helena (PSOL)2.04% Cristovam Buarque (PDT)1.44% +2 more Ana Maria Rangel (PRP)0.18% José Maria Eymael (PSDC)0.06%	−21.20 pts	Left bloc	87.39%
2002 10/27/2002	Round 2	José Serra (PSDB)54.55% Lula (PT)45.45%	+9.09 pts	Right bloc	83.28%
2002 10/06/2002	Round 1	Ciro (PPS)46.95% Lula (PT)34.82% José Serra (PSDB)14.29% Garotinho (PSB)3.80% +1 more Zé Maria (PSTU)0.14%	−71.43 pts	Left bloc	88.36%
1998 10/04/1998	Round 1	Fernando Henrique (PSDB)57.92% Lula (PT)21.41% Ciro Gomes (PPS)12.33% Brigadeiro Ivan Frota (PMN)2.22% +8 more Enéas (PRONA)1.39% Zé Maria (PSTU)1.02% Eymael (PSDC)1.02% João de Deus Barbosa (PT do B)0.83% Vasco Neto (PSN)0.74% Thereza Ruiz (PTN)0.56% Sergio Bueno (PSC)0.37% Sirkis (PV)0.19%	+24.00 pts	Right bloc	73.47%

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
2006(Round 2)·Right bloc→Left bloc

Other municipalities in the Picos 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.