RS · Porto Alegre immediate region

Arroio dos Ratos: how it voted for president

In the 2026 runoff, Lula won Arroio dos Ratos with 53.29% of valid votes against 46.71% for Flavio Bolsonaro: a margin of 6.58 points, 3.01 points left of Brazil.

Lean leftSwing

Lean versus Brazil: −3.50pts; Weighted mean of the municipality's right − left margin minus Brazil's in the 2026, 2022, 2018 and 2014 runoffs.
Electorate (2026): 10,249; 137th largest electorate in Rio Grande do Sul
Side changes: 5; 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 2014.

On the map of Rio Grande do Sul

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.

Arroio dos Ratos−6.58 pts
Rio Grande do Sul+15.67 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)53.29% Flavio Bolsonaro (PL)46.71%	−6.58 pts	Left bloc	78.79%
2026 10/04/2026	Round 1	Lula (PT)47.42% Flavio Bolsonaro (PL)43.94% Ronaldo Caiado (PSD)2.93% Renan Santos (MISSÃO)2.60% +8 more Escritor Augusto Cury (AVANTE)2.54% Zema (NOVO)0.47% Samara (UP)0.04% Clariana Barao (DC)0.03% Edmilson Costa (PCB)0.01% Rui Costa Pimenta (PCO)0.01% Hertz Dias (PSTU)0.00% Veterinário Wilson Grassi (DEMOCRATA)0.00%	−0.07 pts	Left bloc	76.71%
2022 10/30/2022	Round 2	Lula (PT)53.75% Jair Bolsonaro (PL)46.25%	−7.49 pts	Left bloc	79.85%
2022 10/02/2022	Round 1	Lula (PT)53.30% Jair Bolsonaro (PL)38.26% Simone Tebet (MDB)4.93% Ciro Gomes (PDT)2.61% +7 more Felipe D Avila (NOVO)0.44% Soraya Thronicke (UNIÃO)0.31% Padre Kelmon (PTB)0.08% Sofia Manzano (PCB)0.04% Constituinte Eymael (DC)0.04% Vera (PSTU)0.00% Léo Péricles (UP)0.00%	−11.89 pts	Left bloc	79.54%
2018 10/28/2018	Round 2	Jair Bolsonaro (PSL)53.66% Fernando Haddad (PT)46.34%	+7.32 pts	Right bloc	82.27%
2018 10/07/2018	Round 1	Jair Bolsonaro (PSL)43.47% Fernando Haddad (PT)29.95% Ciro Gomes (PDT)12.73% Geraldo Alckmin (PSDB)6.49% +9 more Henrique Meirelles (MDB)2.38% João Amoêdo (NOVO)2.04% Marina Silva (REDE)1.16% Cabo Daciolo (PATRI)0.68% Alvaro Dias (PODE)0.45% Guilherme Boulos (PSOL)0.43% Eymael (DC)0.11% João Goulart Filho (PPL)0.07% Vera (PSTU)0.05%	+11.23 pts	Right bloc	83.42%
2014 10/26/2014	Round 2	Dilma (PT)51.63% Aécio Neves (PSDB)48.37%	−3.27 pts	Left bloc	78.16%
2014 10/05/2014	Round 1	Dilma (PT)51.77% Aécio Neves (PSDB)33.27% Marina Silva (PSB)11.67% Luciana Genro (PSOL)2.13% +6 more Eduardo Jorge (PV)0.57% Pastor Everaldo (PSC)0.26% Levy Fidelix (PRTB)0.23% Zé Maria (PSTU)0.05% Eymael (PSDC)0.04% Mauro Iasi (PCB)0.01%	−32.40 pts	Left bloc	79.72%
2010 10/31/2010	Round 2	José Serra (PSDB)57.85% Dilma (PT)42.15%	+15.71 pts	Right bloc	77.79%
2010 10/03/2010	Round 1	José Serra (PSDB)47.78% Dilma (PT)42.10% Marina Silva (PV)9.08% Plínio (PSOL)0.83% +5 more Levy Fidelix (PRTB)0.08% Eymael (PSDC)0.06% Rui Costa Pimenta (PCO)0.04% Zé Maria (PSTU)0.01% Ivan Pinheiro (PCB)0.01%	−4.16 pts	Left bloc	81.06%
2006 10/29/2006	Round 2	Geraldo Alckmin (PSDB)60.85% Lula (PT)39.15%	+21.71 pts	Right bloc	79.73%
2006 10/01/2006	Round 1	Geraldo Alckmin (PSDB)62.13% Lula (PT)28.20% Heloísa Helena (PSOL)6.08% Cristovam Buarque (PDT)3.36% +3 more Ana Maria Rangel (PRP)0.16% José Maria Eymael (PSDC)0.05% Luciano Bivar (PSL)0.03%	+24.72 pts	Right bloc	82.44%
2002 10/27/2002	Round 2	José Serra (PSDB)52.41% Lula (PT)47.59%	+4.81 pts	Right bloc	82.65%
2002 10/06/2002	Round 1	José Serra (PSDB)37.64% Lula (PT)36.38% Garotinho (PSB)14.01% Ciro (PPS)11.62% +2 more Zé Maria (PSTU)0.33% Rui Costa Pimenta (PCO)0.01%	−24.72 pts	Left bloc	84.77%
1998 10/04/1998	Round 1	Lula (PT)43.72% Fernando Henrique (PSDB)41.92% Ciro Gomes (PPS)6.05% Enéas (PRONA)5.10% +8 more Thereza Ruiz (PTN)0.49% Eymael (PSDC)0.49% Brigadeiro Ivan Frota (PMN)0.47% Sirkis (PV)0.42% Zé Maria (PSTU)0.39% João de Deus Barbosa (PT do B)0.36% Vasco Neto (PSN)0.33% Sergio Bueno (PSC)0.26%	−2.82 pts	Left bloc	82.43%
1994 10/03/1994	Round 1	Fernando Henrique Cardoso (PSDB)35.93% Luiz Inacio Lula da Silva (PT)27.85% Leonel de Moura Brizola (PDT)14.02% Eneas Ferreira Carneiro (PRONA)12.30% +4 more Esperidiao Amin Helou Filho (PPR)5.78% Orestes Quercia (PMDB)3.24% Carlos Antonio Gomes (PRN)0.54% Hernani Goulart Fortuna (PSC)0.33%	+16.25 pts	Right bloc	85.68%

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

When the municipality changed sides

1998(Round 1)·Right bloc→Left bloc
2002(Round 2)·Left bloc→Right bloc
2014(Round 2)·Right bloc→Left bloc
2018(Round 2)·Left bloc→Right bloc
2022(Round 2)·Right bloc→Left bloc

Other municipalities in the Porto Alegre 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.