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Rio Frio

Parish of the municipality of Arcos de Valdevez (Arcos de Valdevez), district of Viana do Castelo.

Rio Frio had 536 residents in the 2021 Census, 50,0% of whom were aged 65 or over, and 5,2% of the population aged 15 or over had completed higher education. It borders 8 parishes and its centroid is 10,9 km in a straight line from the centroid of the municipality of Arcos de Valdevez.

Population (inh.)
  • 164 – 258
  • 295 – 327
  • 349 – 476
  • 536 – 815
  • 848 – 2.754
Density (inh./km²)
  • 4,5 – 24,8
  • 25,4 – 43,8
  • 49,2 – 97,5
  • 99,5 – 182,2
  • 185,6 – 522,6
Area (km²)
  • 1,7 – 3,8
  • 3,9 – 5,3
  • 5,5 – 8,3
  • 9,0 – 15,1
  • 19,3 – 59,1
Quantile classes · current parish
Parish highlighted. Click a neighbouring parish to open its page. Geometry: CAOP2025, Direção-Geral do Território (simplified).

The 36 parishes of Arcos de Valdevez

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Code (DTMNFR)
160130
Resident population (2021)
536
Area
19,28 km²
Density
27,8 inh./km²
Share of the municipality (population)
2,6%
Rank in the municipality (population)
14th of 36

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
228 (42,5%)
Women
308 (57,5%)
Portuguese nationality
529 (98,7%)
Foreign nationality
7 (1,3%)
Ageing index
788,2 elderly per 100 young people
Private households
250
Average household size *
1,98 people
Dwellings
649
Classic family dwellings
648
Buildings
642
Buildings with 7 or more floors
0
With higher education (15+)
5,2% (26)
Unemployment rate *
3,91% (H 5,19% · M 1,96%)
Active / employed population
128 / 123

Population by age group

Population by age group0-14 years: 34 (6,3%); 15-24 years: 30 (5,6%); 25-64 years: 204 (38,1%); 65+ years: 268 (50,0%)0-1434 · 6,3%15-2430 · 5,6%25-64204 · 38,1%65+268 · 50,0%
Residents by age group and share of the total (536).
Age groupTotalMenWomen
0-14 years341717
15-24 years301218
25-64 years20499105
65+ years268100168

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 Arcos de Valdevez
10,9 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
702
Voters
390
Turnout
55,56% (2021: 50,87%)
Seats
7
ListVotes%Seats
PS
Partido Socialista
19550,00%4
PPD/PSD
Partido Social Democrata
18346,92%3
Blank votes71,79%
Null votes51,28%

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
Lugar da Igreja
Rio Frio (ARCOS DE VALDEVEZ)
4970-318 RIO FRIO
Telephone
258531403
Fax
258531403
Email
geral@freguesiariofrio.pt

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

More information

Coordinates
41,86167, -8,47917
Wikipedia
Rio Frio (Arcos de Valdevez)
Wikidata
Q2095601

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