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União das freguesias de Bustos, Troviscal e Mamarrosa

Parish of the municipality of Oliveira do Bairro (Oliveira do Bairro), district of Aveiro.

União das freguesias de Bustos, Troviscal e Mamarrosa had 6.221 residents in the 2021 Census, 28,6% of whom were aged 65 or over, and 14,9% of the population aged 15 or over had completed higher education. It borders 7 parishes and its centroid is 3,3 km in a straight line from the centroid of the municipality of Oliveira do Bairro.

Population (inh.)
  • 2.664
  • 6.221
  • 6.385
  • 7.862
Density (inh./km²)
  • 218,9
  • 265,6
  • 283,2
  • 298,7
Area (km²)
  • 10,0
  • 22,6
  • 26,3
  • 28,4
Quantile classes · current parish
Parish highlighted. Click a neighbouring parish to open its page. Geometry: CAOP2025, Direção-Geral do Território (simplified).

The 4 parishes of Oliveira do Bairro

Hover a row to highlight it on the map. Click a header to sort.

#ParishPopulationArea (km²)Inhab./km²
1Oiã7.86226,32298,7
2Oliveira do Bairro6.38522,55283,2
3Palhaça2.66410,03265,6
4União das freguesias de Bustos, Troviscal e Mamarrosa6.22128,42218,9
Code (DTMNFR)
011407
Resident population (2021)
6.221
Area
28,42 km²
Density
218,9 inh./km²
Share of the municipality (population)
26,9%
Rank in the municipality (population)
3rd of 4

Simplified designation (CAOP2025): “Bustos, Troviscal e Mamarrosa”.

INE, Censos 2021 (população residente por freguesia, geografia 2025, ind. 0014584); DGT, CAOP2025 (área). Population refers to the 2021 census moment, compiled by INE for the parish boundaries in force in 2025.

2021 Census in detail

Men
2.947 (47,4%)
Women
3.274 (52,6%)
Portuguese nationality
5.975 (96,0%)
Foreign nationality
246 (4,0%)
Ageing index
231,8 elderly per 100 young people
Private households
2.373
Average household size *
2,59 people
Dwellings
3.374
Classic family dwellings
3.369
Buildings
3.053
Buildings with 7 or more floors
0
With higher education (15+)
14,9% (810)
Unemployment rate *
4,72% (H 3,70% · M 5,88%)
Active / employed population
2.815 / 2.682

Population by age group

Population by age group0-14 years: 767 (12,3%); 15-24 years: 622 (10,0%); 25-64 years: 3.054 (49,1%); 65+ years: 1.778 (28,6%)0-14767 · 12,3%15-24622 · 10,0%25-643.054 · 49,1%65+1.778 · 28,6%
Residents by age group and share of the total (6.221).
Age groupTotalMenWomen
0-14 years767398369
15-24 years622310312
25-64 years3.0541.4991.555
65+ years1.7787401.038

Source: INE, Censos 2021 — indicators 0014630, 0014631, 0014627, 0014623, 0014621, 0014635, 0014636, 0012481, 0012328, 0014632, obtained from the INE indicators API on 24/09/2026 (licence CC BY 4.0). Parish geography of 2025 (CAOP2025). Nationality (Portuguese, foreign, stateless) is INE indicator 0014632. * Indicator published by INE only for 2013 parish geography (NUTS 2024); used because the parish has the same territory in both geographies (identical population by sex and age group). Ageing index = population aged 65+ ÷ population aged 0–14 × 100; share with higher education = residents with completed higher education ÷ residents aged 15 or over (our calculations from INE figures).

Neighbouring parishes

Straight-line distance to the centroid of the municipality of Oliveira do Bairro
3,3 km

Neighbourhood calculated from official boundaries: DGT, Carta Administrativa Oficial de Portugal (CAOP) 2025 (licence CC BY 4.0); two parishes are neighbours when they share a boundary segment. The distance is the straight-line (great-circle) distance between the geometric centroid of the parish and that of the municipality (in territories with islets, of the main part), not a road distance.

2025 local elections — Parish assembly

Registered voters
5.886
Voters
3.440
Turnout
58,44% (2021: 54,24%)
Seats
13
ListVotes%Seats
CDS-PP
CDS - Partido Popular
1.71149,74%7
PPD/PSD
Partido Social Democrata
1.08731,60%5
CH
CHEGA
2878,34%1
PS
Partido Socialista
2055,96%0
PCP-PEV
CDU - Coligação Democrática Unitária
320,93%0
Blank votes742,15%
Null votes441,28%

Most-voted list, which elects the parish-council president: CDS-PP.

Source: SGMAI — official results of the local elections of 12 October 2025 (Secretary-General of the Ministry of Internal Administration), consulted on 25/09/2026. Percentages calculated by SGMAI over total voters.

Heraldry

Coat of arms: escudo de prata anta de negro em tendo no vão cacho de uvas de púrpura folhado de verde encimada por torre coberta hexagonal de vermelho, lavrada, aberta e iluminada do campo, com grimpa de azul, entre dois ramos de trovisco de verde, em pala, postos nos flancos. Coroa mural de prata de quatro torres. Listel de prata com a legenda em letras negras maiúsculas: «UNIÃO DAS FREGUESIAS DE BUSTOS, TROVISCAL E MAMARROSA».

Flag: esquartelada de branco e vermelho. Cordões e borlas de vermelho e prata. Haste e lança de ouro.

Seal: nos termos do artigo 18 da Lei n.º 53/91, com a legenda «União das Freguesias de Bustos, Troviscal e Mamarrosa».

Heraldic ordinance published by Edital n.º 857/2017, Diário da República n.º 206/2017, Série II de 2017-10-25 (issuer: União das Freguesias de Bustos, Troviscal e Mamarrosa). Excerpt of the official text (coat of arms, flag and seal), reproduced unchanged.

Parish-council contacts

Address
Rua Jacinto dos Louros, N.º 6
Bustos (OLIVEIRA DO BAIRRO)
3770-018 BUSTOS
Telephone
234753754
Fax
234754933
Email
geral@uniaofreguesiasbtm.pt
Website
www.uniaofreguesiasbtm.pt

Source: DGAL - Portal Autárquico (Direção-Geral das Autarquias Locais), consulted on 25/09/2026.

More information

Coordinates
40,49280, -8,58030
Wikipedia
Bustos, Troviscal e Mamarrosa
Wikidata
Q19608106

Source: Wikidata (data under CC0 1.0), consulted on 24/09/2026. The patron saint and coordinates are those recorded on Wikidata.

Sources: INE, 2021 Census (resident population) · DGT, CAOP2025 (area and parishes) · more details · Data updated on 24/09/2026