Alter do Chão
Municipality of the district of Portalegre (District of Portalegre), region Alentejo (NUTS III: Alto Alentejo).
Alter do Chão had 3.044 residents in the 2021 Census, of whom 35,7% were aged 65 or over; 10,4% of the population aged 15 or over had completed higher education.
Arriving here
Mayor: Francisco José Cordeiro Miranda · Tel. 245610000 · Email: geral@cm-alter-chao.pt · www.cm-alter-chao.pt more contacts
Summary for arrivals. The telephone code is that of the district/region seat (ANACOM numbering plan), not exclusive to this municipality. School, parish-council and town-hall counts come from the official lists already on this site. Hospitals are NHS institutions whose official name includes the municipality.
- 291
- 355
- 382
- 2.016
- 3,2
- 5,3
- 7,9
- 14,3
- 37,1
- 71,7
- 112,4
- 140,9
The 4 parishes of Alter do Chão
Sorted by resident population (2021 Census, 2025 geography). Click a header to sort; hover a row to highlight it on the map.
Download CSV parish list (UTF-8)
| # | Parish | Population | Area (km²) | Inhab./km² |
|---|---|---|---|---|
| 1 | Alter do Chão | 2.016 | 140,85 | 14,3 |
| 2 | Chancelaria | 382 | 71,70 | 5,3 |
| 3 | Seda | 355 | 112,43 | 3,2 |
| 4 | Cunheira | 291 | 37,08 | 7,9 |
- INE code (DTMN)
- 1201
- Resident population
- 3.044
- Area
- 362,07 km²
- Density
- 8,4 inh./km²
- Parishes
- 4
- Share of district population
- 2,9%
- Rank in the district (population)
- 11th of 15
- National rank (population)
- 293rd of 308
- National rank (density)
- 300th of 308
- National rank (area)
- 84th of 308
INE, Censos 2021 (população residente, ind. 0014525, via dados.gov.pt); DGT, CAOP2025 (área e freguesias)
2021 Census in detail
- Men
- 1.390 (45,7%)
- Women
- 1.654 (54,3%)
- Portuguese nationality
- 2.952 (97,0%)
- Foreign nationality
- 92 (3,0%)
- Ageing index
- 323,8 elderly per 100 young people
- Private households
- 1.288
- Average household size
- 2,22 people
- Dwellings
- 3.021
- Buildings
- 2.819
- With higher education (15+)
- 10,4% (282)
- Unemployment rate
- 7,26%
Population by age group
Source: INE, Censos 2021 (API de indicadores) — indicators 0014630, 0014631, 0014627, 0014623, 0014621, 0014635, 0014636, 0012328, 0012481, 0014632, licence CC BY 4.0.
2025 local elections
Municipal council
- Registered
- 2.685
- Voters
- 1.953 (72,74%)
- Seats
- 5
| List | Votes | % | Seats |
|---|---|---|---|
| PPD/PSD.CDS-PP (elected council president) | 860 | 44,03% | 3 |
| PS | 789 | 40,40% | 2 |
| CH | 134 | 6,86% | 0 |
| PCP-PEV | 100 | 5,12% | 0 |
Municipal assembly
- Registered
- 2.685
- Voters
- 1.953 (72,74%)
- Seats
- 15
| List | Votes | % | Seats |
|---|---|---|---|
| PPD/PSD.CDS-PP | 856 | 43,83% | 7 |
| PS | 733 | 37,53% | 6 |
| CH | 141 | 7,22% | 1 |
| PCP-PEV | 141 | 7,22% | 1 |
Source: SGMAI — resultados oficiais das Autárquicas 2025. Official results; only the list that elects the council president is marked (the person’s name is not in these results).
Contacts
- Mayor
- Francisco José Cordeiro Miranda
- Address
- Largo do Município, nº2, 7440-026 Alter do Chão
- Telephone
- 245610000
- geral@cm-alter-chao.pt
- Website
- www.cm-alter-chao.pt
Source: DGAL — Portal Autárquico, Lista de Presidentes e contactos dos Municípios (atualizada 04/09/2026).
On the web
Q438263 · Wikipedia · www.cm-alter-chao.pt/
Source: Wikidata (CC0).
Neighbouring municipalities
Avis (22,7 km) · Crato (13,1 km) · Fronteira (17,4 km) · Monforte (31,0 km) · Ponte de Sor (31,0 km)
Straight-line distance to the centroid of the district/region of Portalegre: 13,6 km.
Source: DGT, CAOP2025 (CC BY 4.0) — adjacência de limites; distância em linha reta entre centróides (licence CC BY 4.0).
Services and territory
Schools (Infoescolas 2020)
3 establishments with figures for the 1st, 2nd or 3rd cycle or for secondary education. The source does not name the parish.
| # | School | In the source |
|---|---|---|
| 1 | Escola Básica de Alter do Chão | Código DGEEC 1201957. Ciclos no Infoescolas 2020: 1.º ciclo. A fonte indica o concelho, não a freguesia. |
| 2 | Escola Básica e Secundária Padre José Agostinho Rodrigues, Alter do Chão | Código DGEEC 1201458. Ciclos no Infoescolas 2020: 2.º ciclo, 3.º ciclo, secundário científico-humanístico. A fonte indica o concelho, não a freguesia. |
| 3 | Escola Profissional de Desenvolvimento Rural de Alter do Chão | Código DGEEC 1202000. Ciclos no Infoescolas 2020: secundário profissional. A fonte indica o concelho, não a freguesia. |
Source: DGEEC, Infoescolas 2020 (CC BY 4.0). Rents: INE 0014773 (CC BY 4.0).
Location in the district
- 2.789 – 2.992
- 3.021 – 3.116
- 3.225 – 3.812
- 4.360 – 8.042
- 15.248 – 22.340
- 6,3 – 8,1
- 8,4 – 10,3
- 11,5 – 11,8
- 15,6 – 19,5
- 32,5 – 50,0
- 154,9 – 248,6
- 264,9 – 294,6
- 314,7 – 398,1
- 420,3 – 575,7
- 606,0 – 839,8
Compare Alter do Chão with other municipalities… · Compare parishes…
Other municipalities of the district of Portalegre
Arronches · Avis · Campo Maior · Castelo de Vide · Crato · Elvas · Fronteira · Gavião · Marvão · Monforte · Nisa · Ponte de Sor · Portalegre · Sousel
Sources: INE, 2021 Census (resident population) · DGT, CAOP2025 (area and parishes) · more details · Data updated on 24/09/2026