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Água Longa

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Parish of the municipality of Santo Tirso (Santo Tirso), district of Porto.

Água Longa had 2.341 residents in the 2021 Census, 19,4% of whom were aged 65 or over, and 18,7% of the population aged 15 or over had completed higher education. It borders 6 parishes and its centroid is 7,9 km in a straight line from the centroid of the municipality of Santo Tirso.

Population (inh.)
  • 1.427 – 1.567
  • 2.040 – 3.130
  • 3.308 – 3.755
  • 3.848 – 6.369
  • 7.946 – 20.590
Density (inh./km²)
  • 126,3 – 212,6
  • 215,0 – 285,4
  • 536,1 – 618,4
  • 657,8 – 743,5
  • 816,4 – 1.300,5
Area (km²)
  • 4,2 – 5,3
  • 6,1 – 6,2
  • 7,0 – 9,6
  • 10,3 – 12,9
  • 16,8 – 25,2
Quantile classes · current parish
Parish highlighted. Click a neighbouring parish to open its page. Geometry: CAOP2025, Direção-Geral do Território (simplified).

The 14 parishes of Santo Tirso

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

#ParishPopulationArea (km²)Inhab./km²
1Agrela1.4866,99212,6
2Aves7.9466,111.300,5
3Monte Córdova3.84816,80229,1
4Negrelos (São Tomé)3.7556,12613,6
5Rebordões3.1304,21743,5
6Reguenga1.4275,00285,4
7Roriz3.3086,17536,1
8União das freguesias de Areias, Sequeiró, Lama e Palmeira6.36910,30618,4
9União das freguesias de Carreira e Refojos de Riba de Ave2.0409,49215,0
10União das freguesias de Lamelas e Guimarei1.56712,41126,3
11União das freguesias de Santo Tirso, Couto (Santa Cristina e São Miguel) e Burgães20.59025,22816,4
12Vila Nova do Campo6.3159,60657,8
13Vilarinho3.5875,27680,7
14Água Longa2.34112,87181,9
Code (DTMNFR)
131402
Resident population (2021)
2.341
Area
12,87 km²
Density
181,9 inh./km²
Share of the municipality (population)
3,5%
Rank in the municipality (population)
10th of 14

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
1.158 (49,5%)
Women
1.183 (50,5%)
Portuguese nationality
2.300 (98,2%)
Foreign nationality
41 (1,8%)
Ageing index
139,1 elderly per 100 young people
Private households
823
Average household size *
2,84 people
Dwellings
987
Classic family dwellings
987
Buildings
897
Buildings with 7 or more floors
0
With higher education (15+)
18,7% (377)
Unemployment rate *
7,25% (H 6,05% · M 8,71%)
Active / employed population
1.117 / 1.036

Population by age group

Population by age group0-14 years: 327 (14,0%); 15-24 years: 276 (11,8%); 25-64 years: 1.283 (54,8%); 65+ years: 455 (19,4%)0-14327 · 14,0%15-24276 · 11,8%25-641.283 · 54,8%65+455 · 19,4%
Residents by age group and share of the total (2.341).
Age groupTotalMenWomen
0-14 years327167160
15-24 years276142134
25-64 years1.283638645
65+ years455211244

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 Lamelas e Guimarei · Alfena (Valongo) · Agrela · Folgosa (Maia) · Covelas (Trofa) · Sobrado (Valongo)

Straight-line distance to the centroid of the municipality of Santo Tirso
7,9 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
2.003
Voters
1.467
Turnout
73,24% (2021: 67,68%)
Seats
9
ListVotes%Seats
ALEDT
Água Longa é de Todos		90361,55%7
PPD/PSD.IL
JUNTOS POR SANTO TIRSO		38426,18%2
CH
CHEGA		1218,25%0
Blank votes422,86%
Null votes171,16%

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

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 São Julião, N.º 5
Água Longa (Santo Tirso)
4825-114 ÁGUA LONGA
Telephone
229685217
Email
fagualonga@sapo.pt
Website
www.jfagualonga.pt

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

More information

Coordinates
41,25944, -8,49278
Wikipedia
Água Longa
Wikidata
Q249762

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