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Vialonga

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Parish of the municipality of Vila Franca de Xira (Vila Franca de Xira), district of Lisboa.

Vialonga had 21.258 residents in the 2021 Census, 15,2% of whom were aged 65 or over, and 14,7% of the population aged 15 or over had completed higher education. It borders 5 parishes and its centroid is 10,3 km in a straight line from the centroid of the municipality of Vila Franca de Xira.

Population (inh.)
  • 7.954 – 12.645
  • 18.336
  • 21.258
  • 36.465
  • 40.871
Density (inh./km²)
  • 86,1 – 297,0
  • 459,2
  • 1.185,6
  • 1.524,5
  • 4.461,9
Area (km²)
  • 9,2 – 17,9
  • 23,9
  • 26,8
  • 27,5
  • 212,9
Quantile classes · current parish
Parish highlighted. Click a neighbouring parish to open its page. Geometry: CAOP2025, Direção-Geral do Território (simplified).

The 6 parishes of Vila Franca de Xira

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

#ParishPopulationArea (km²)Inhab./km²
1União das freguesias de Alhandra, São João dos Montes e Calhandriz12.64527,54459,2
2União das freguesias de Alverca do Ribatejo e Sobralinho36.46523,921.524,5
3União das freguesias de Castanheira do Ribatejo e Cachoeiras7.95426,78297,0
4União das freguesias de Póvoa de Santa Iria e Forte da Casa40.8719,164.461,9
5Vialonga21.25817,931.185,6
6Vila Franca de Xira18.336212,8786,1
Code (DTMNFR)
111408
Resident population (2021)
21.258
Area
17,93 km²
Density
1.185,6 inh./km²
Share of the municipality (population)
15,5%
Rank in the municipality (population)
3rd of 6

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
10.261 (48,3%)
Women
10.997 (51,7%)
Portuguese nationality
19.940 (93,8%)
Foreign nationality
1.318 (6,2%)
Ageing index
83,2 elderly per 100 young people
Private households
8.207
Average household size *
2,59 people
Dwellings
9.318
Classic family dwellings
9.292
Buildings
2.711
Buildings with 7 or more floors
83
With higher education (15+)
14,7% (2.555)
Unemployment rate *
8,14% (H 7,82% · M 8,44%)
Active / employed population
10.864 / 9.980

Population by age group

Population by age group0-14 years: 3.886 (18,3%); 15-24 years: 2.469 (11,6%); 25-64 years: 11.671 (54,9%); 65+ years: 3.232 (15,2%)0-143.886 · 18,3%15-242.469 · 11,6%25-6411.671 · 54,9%65+3.232 · 15,2%
Residents by age group and share of the total (21.258).
Age groupTotalMenWomen
0-14 years3.8862.0521.834
15-24 years2.4691.2371.232
25-64 years11.6715.5336.138
65+ years3.2321.4391.793

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

União das freguesias de Santo Antão e São Julião do Tojal (Loures) · União das freguesias de Santa Iria de Azoia, São João da Talha e Bobadela (Loures) · Bucelas (Loures) · União das freguesias de Póvoa de Santa Iria e Forte da Casa · União das freguesias de Alverca do Ribatejo e Sobralinho

Straight-line distance to the centroid of the municipality of Vila Franca de Xira
10,3 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
17.800
Voters
9.118
Turnout
51,22% (2021: 43,01%)
Seats
13
ListVotes%Seats
PS
Partido Socialista		3.30536,25%5
CH
CHEGA		2.51527,58%4
PPD/PSD.IL
Nova Geração - Coligação PSD/IL		1.79619,70%3
PCP-PEV
CDU - Coligação Democrática Unitária		1.12712,36%1
CDS-PP
CDS - Partido Popular		1061,16%0
Blank votes1541,69%
Null votes1151,26%

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

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
Rua Prof. Egas Moniz, N.º 76
Vialonga (VILA FRANCA DE XIRA)
2625-655 VIALONGA
Telephone
219520967
Fax
219523341
Email
geral@jf-vialonga.pt
Website
www.jf-vialonga.pt

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

More information

Coordinates
38,87402, -9,08340
Wikipedia
Vialonga
Wikidata
Q1340615

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