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Belas

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Parish of the municipality of Sintra (Sintra), district of Lisboa.

Belas had 26.310 residents in the 2021 Census, 14,0% of whom were aged 65 or over, and 23,8% of the population aged 15 or over had completed higher education. It borders 8 parishes and its centroid is 8,0 km in a straight line from the centroid of the municipality of Sintra.

Population (inh.)
  • 3.676 – 5.205
  • 7.746 – 12.788
  • 13.347 – 26.310
  • 29.896 – 41.323
  • 47.804 – 68.649
Density (inh./km²)
  • 199,4 – 232,1
  • 232,7 – 426,5
  • 470,4 – 3.001,2
  • 4.290,6 – 6.910,2
  • 7.191,2 – 15.470,6
Area (km²)
  • 2,2 – 3,6
  • 4,4 – 8,6
  • 15,7 – 16,5
  • 22,8 – 33,4
  • 39,8 – 63,6
Quantile classes · current parish
Parish highlighted. Click a neighbouring parish to open its page. Geometry: CAOP2025, Direção-Geral do Território (simplified).

The 15 parishes of Sintra

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

#ParishPopulationArea (km²)Inhab./km²
1Algueirão-Mem Martins68.64916,004.290,6
2Almargem do Bispo9.26139,80232,7
3Belas26.31022,841.151,9
4Casal de Cambra13.3472,176.150,7
5Colares7.74633,37232,1
6Montelavar3.6768,62426,5
7Pêro Pinheiro4.32515,65276,4
8Queluz26.1043,637.191,2
9Rio de Mouro49.48916,493.001,2
10São João das Lampas12.78857,50222,4
11Terrugem5.20526,10199,4
12União das freguesias de Agualva e Mira-Sintra41.3235,986.910,2
13União das freguesias de Massamá e Monte Abraão47.8043,0915.470,6
14União das freguesias de Sintra (Santa Maria e São Miguel, São Martinho e São Pedro de Penaferrim)29.89663,55470,4
15União das freguesias do Cacém e São Marcos39.6834,448.937,6
Code (DTMNFR)
111130
Resident population (2021)
26.310
Area
22,84 km²
Density
1.151,9 inh./km²
Share of the municipality (population)
6,8%
Rank in the municipality (population)
7th of 15

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
12.840 (48,8%)
Women
13.470 (51,2%)
Portuguese nationality
24.816 (94,3%)
Foreign nationality
1.494 (5,7%)
Ageing index
90,2 elderly per 100 young people
Private households
9.671
Dwellings
11.390
Classic family dwellings
11.372
Buildings
3.009
Buildings with 7 or more floors
366
With higher education (15+)
23,8% (5.293)
Unemployment rate †
8,03%
Active / employed population
13.609 / 12.516

Population by age group

Population by age group0-14 years: 4.074 (15,5%); 15-24 years: 3.310 (12,6%); 25-64 years: 15.253 (58,0%); 65+ years: 3.673 (14,0%)0-144.074 · 15,5%15-243.310 · 12,6%25-6415.253 · 58,0%65+3.673 · 14,0%
Residents by age group and share of the total (26.310).
Age groupTotalMenWomen
0-14 years4.0742.1061.968
15-24 years3.3101.7521.558
25-64 years15.2537.4007.853
65+ years3.6731.5822.091

Source: INE, Censos 2021 — indicators 0014630, 0014631, 0014627, 0014623, 0014621, 0014635, 0014636, 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. † Unemployment rate calculated by us: (active population − employed population) ÷ active population × 100 (indicators 0014635 and 0014636, 2025 geography). 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

Almargem do Bispo · União das freguesias de Agualva e Mira-Sintra · Mina de Água (Amadora) · União das freguesias de Massamá e Monte Abraão · Algueirão-Mem Martins · Rio de Mouro · Casal de Cambra · Queluz

Straight-line distance to the centroid of the municipality of Sintra
8,0 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
22.620
Voters
12.026
Turnout
53,17%
Seats
19
ListVotes%Seats
PPD/PSD.IL.PAN
SEMPRE COM OS SINTRENSES		4.11834,24%7
PS.L
AS PESSOAS, SEMPRE - COLIGAÇÃO PS/L		3.39928,26%6
CH
CHEGA		2.99124,87%5
PCP-PEV
CDU - Coligação Democrática Unitária		6785,64%1
CDS-PP/PPM/ADN
Por Sintra, a Nossa Casa		2542,11%0
B.E.
Bloco de Esquerda		2261,88%0
ND
NOVA DIREITA		710,59%0
Blank votes1841,53%
Null votes1050,87%

Most-voted list, which elects the parish-council president: PPD/PSD.IL.PAN.

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.

Parish-council contacts

Address
Praça 5 de Outubro, 14
Belas
2605-021 Belas
Email
geral@jfbelas.pt

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

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