How many people live in Ulldecona?

Ulldecona had 6,814 residents on the 2025 municipal register, making it the 4th most populous of the 12 municipalities in Montsià.

How long does it take to get from Ulldecona to Barcelona by train?

The nearest station to Ulldecona is Ulldecona-Alcanar-La Sénia, 0.3 km away, and the fastest train reaches central Barcelona in ~2h40 (approximate schedule).

What do people earn in Ulldecona?

Household disposable income per resident in Ulldecona is 14,623 € a year (Idescat, 2023 (p)), 4% below the comarca median.

Do people speak Catalan in Ulldecona?

65.5% of residents in Ulldecona reported being able to speak Catalan in the 2011 census, the last edition to carry the question at municipal level. It measures the ability to speak it, not everyday use.

Is Ulldecona at risk of flooding or wildfire?

The civil-protection plans in force (2026) classify the flood risk in Ulldecona as "Very high" and its wildfire hazard as "Around the Catalan average". Wildfire hazard is relative to the Catalan average, not a probability of burning.

Do people rent or own in Ulldecona?

16.7% of main dwellings in Ulldecona are rented (2021).

Montsià comarca

Ulldecona

A municipality in the Montsià comarca, province of Tarragona

4th most populous of 12 municipalities in Montsià

With 6,814 residents, Ulldecona sits in the larger half of the 12 municipalities in the Montsià comarca (province of Tarragona). Disposable household income is €14,623 per resident, essentially the comarca median. The unemployment rate is 10.7%. The nearest train station is Ulldecona-Alcanar-La Sénia, 0.3 km away (Rodalies / Renfe), but Barcelona is 2h40 away on the fastest train. 65.5% of Ulldecona's residents said they could speak Catalan in the 2011 census, the last to ask at municipal level. Under the Generalitat's civil-protection plans, flood risk is very high.

Population6,814 · 2025

Density54 inh./km²

Income (per person)14,623 € · 2023 (p)4% below the comarca median

Can speak Catalan65.5% 2011

Nearest train station0.3 km Ulldecona-Alcanar-La Sénia

To Barcelona by train~2h40 Rodalies / Renfe

How Ulldecona compares in Montsià

Where the municipality sits among those of the Montsià comarca, indicator by indicator.

Worth knowing

Higher education20.7%10th of 12
Income per resident14,623 €8th of 8

Around the middle

Unemployment rate10.7%8th of 11

Neither better nor worse

Foreign-born30.3%1st of 12
Can speak Catalan65.5%12th of 12

On these indicators neither end is better — it depends what you are looking for. Shown highest to lowest.

Each position is computed only among the municipalities of the comarca that publish that indicator: Idescat suppresses figures for the smallest ones, so the total can be lower than the comarca's municipality count. No position is published for a cohort of fewer than 5.

All the data

Demographics

Population: 6,8142025
Density: 54 inh./km²2025
Surface area: 126.9 km²2025
Altitude: 133 m
Population aged 65+: 21.5%2025
Foreigners: 30.3%2025
Annual Growth: +3.2%2024

Economy

Income (per person): 14,623 €2023 (p)
Unemployment: 10.7%2024
Higher education: 20.7%2024

Housing

Rented dwellings: 16.7%2021

Getting around

Nearest train station: Ulldecona-Alcanar-La Sénia · 0.3 km · Rodalies / Renfe
To Barcelona by train: ~2h40

Straight-line distance to the nearest station. Time is the fastest scheduled train (approximate, not a specific departure); it may require a change.

Natural risk

Flood risk: Very high2026
Main flood sources: Dams and reservoirs
Wildfire hazard: Around the Catalan average2026
Wildfire vulnerability: High2026
Wildfires 2011-2024: 18 fires started here · 32.9 ha burned

Official Generalitat classification: the INUNCAT (flood) and INFOCAT (wildfire) special plans, Departament d'Interior. The flood level is the maximum across every flood type affecting the municipality. Wildfire hazard is expressed relative to the Catalan average, not as an absolute probability. Fires (2011-2024, Departament d'Acció Climàtica) are attributed to the municipality where they started, so the burned area may extend into neighbouring municipalities.

Language

Can speak Catalan: 65.5%2011

Source: Idescat, 2011 census — the last one to carry this question at municipal level. Real, but old.

Frequently asked questions

How many people live in Ulldecona?: Ulldecona had 6,814 residents on the 2025 municipal register, making it the 4th most populous of the 12 municipalities in Montsià.
How long does it take to get from Ulldecona to Barcelona by train?: The nearest station to Ulldecona is Ulldecona-Alcanar-La Sénia, 0.3 km away, and the fastest train reaches central Barcelona in ~2h40 (approximate schedule).
What do people earn in Ulldecona?: Household disposable income per resident in Ulldecona is 14,623 € a year (Idescat, 2023 (p)), 4% below the comarca median.
Do people speak Catalan in Ulldecona?: 65.5% of residents in Ulldecona reported being able to speak Catalan in the 2011 census, the last edition to carry the question at municipal level. It measures the ability to speak it, not everyday use.
Is Ulldecona at risk of flooding or wildfire?: The civil-protection plans in force (2026) classify the flood risk in Ulldecona as "Very high" and its wildfire hazard as "Around the Catalan average". Wildfire hazard is relative to the Catalan average, not a probability of burning.
Do people rent or own in Ulldecona?: 16.7% of main dwellings in Ulldecona are rented (2021).

See the Montsià comarca →Explore every comarca on the interactive map →

Data from Idescat (EMEX). Per-indicator sources have different reference years; see each section's note.