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Aião

Parish of the municipality of Felgueiras (Felgueiras), district of Porto.

Aião had 828 residents in the 2021 Census, 16,9% of whom were aged 65 or over, and 6,2% of the population aged 15 or over had completed higher education. It borders 4 parishes and its centroid is 5,3 km in a straight line from the centroid of the municipality of Felgueiras.

Population (inh.)
  • 799 – 1.062
  • 1.099 – 1.220
  • 1.417 – 1.897
  • 2.073 – 3.287
  • 3.289 – 17.695
Density (inh./km²)
  • 163,8 – 239,9
  • 295,0 – 358,7
  • 365,9 – 431,0
  • 451,3 – 531,9
  • 551,5 – 1.014,6
Area (km²)
  • 2,8 – 3,1
  • 3,1 – 3,4
  • 3,6 – 5,0
  • 5,2 – 7,1
  • 7,5 – 17,4
Quantile classes · current parish
Parish highlighted. Click a neighbouring parish to open its page. Geometry: CAOP2025, Direção-Geral do Território (simplified).

The 20 parishes of Felgueiras

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

#ParishPopulationArea (km²)Inhab./km²
1Airães2.2924,01571,6
2Aião8282,78297,8
3Friande1.7503,29531,9
4Idães2.5507,11358,7
5Jugueiros1.2207,45163,8
6Penacova1.0623,00354,0
7Pinheiro1.0533,57295,0
8Pombeiro de Ribavizela2.0734,81431,0
9Refontoura1.8973,44551,5
10Regilde1.1823,08383,8
11Revinhade7993,33239,9
12Sendim1.5647,03222,5
13União das freguesias de Macieira da Lixa e Caramos3.6058,63417,7
14União das freguesias de Margaride (Santa Eulália), Várzea, Lagares, Varziela e Moure17.69517,441.014,6
15União das freguesias de Pedreira, Rande e Sernande3.2896,98471,2
16União das freguesias de Torrados e Sousa3.2875,21630,9
17União das freguesias de Unhão e Lordelo1.0994,96221,6
18União das freguesias de Vila Cova da Lixa e Borba de Godim6.08113,46451,8
19União das freguesias de Vila Fria e Vizela (São Jorge)1.1053,02365,9
20União das freguesias de Vila Verde e Santão1.4173,14451,3
Code (DTMNFR)
130301
Resident population (2021)
828
Area
2,78 km²
Density
297,8 inh./km²
Share of the municipality (population)
1,5%
Rank in the municipality (population)
19th of 20

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
417 (50,4%)
Women
411 (49,6%)
Portuguese nationality
816 (98,6%)
Foreign nationality
12 (1,4%)
Ageing index
115,7 elderly per 100 young people
Private households
271
Average household size *
3,06 people
Dwellings
377
Classic family dwellings
377
Buildings
328
Buildings with 7 or more floors
0
With higher education (15+)
6,2% (44)
Unemployment rate *
6,46% (H 5,36% · M 7,98%)
Active / employed population
387 / 362

Population by age group

Population by age group0-14 years: 121 (14,6%); 15-24 years: 111 (13,4%); 25-64 years: 456 (55,1%); 65+ years: 140 (16,9%)0-14121 · 14,6%15-24111 · 13,4%25-64456 · 55,1%65+140 · 16,9%
Residents by age group and share of the total (828).
Age groupTotalMenWomen
0-14 years1216754
15-24 years1116843
25-64 years456224232
65+ years1405882

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

Torno (Lousada) · União das freguesias de Vila Verde e Santão · Airães · União das freguesias de Figueiró (Santiago e Santa Cristina) (Amarante)

Straight-line distance to the centroid of the municipality of Felgueiras
5,3 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
686
Voters
507
Turnout
73,91% (2021: 61,97%)
Seats
7
ListVotes%Seats
L.PS
SIM ACREDITA		38375,54%6
PPD/PSD.CDS-PP
AGORA FELGUEIRAS		10420,51%1
PCP-PEV
CDU - Coligação Democrática Unitária		61,18%0
Blank votes81,58%
Null votes61,18%

Most-voted list, which elects the parish-council president: L.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 de S. João, N.º 888
Aião (FELGUEIRAS)
4650-026 AIÃO
Telephone
255488781
Fax
255488781
Email
junta.aiao@gmail.com

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

More information

Coordinates
41,29889, -8,20111
Wikipedia
Aião
Wikidata
Q411780

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