As a resident who has lived in Zaragoza for five years, I’ve always been interested in the scale and development of this city. Recently, I compiled some data on Lyon vs Zaragoza and would like to share some observations and analysis regarding Zaragoza’s size.
Urban Population Overview
Zaragoza is Spain’s fifth-largest city, with a municipal population of approximately 670,000 and a metropolitan area population approaching 750,000. Compared to mega-cities like Madrid and Barcelona, Zaragoza’s scale is more moderate, offering the conveniences of a large city without excessive crowding. In terms of population density, the Centro district in the city center exceeds 10,000 people per square kilometer, while peripheral areas like Casablanca have much lower densities, around 3,000 people per square kilometer.

Population Distribution by District
Based on the latest statistical data, I’ve compiled the population distribution of major urban areas:
| District | Population | Area | Population Density |
| Centro | 58000 | 4.2 | 13810 |
| Universidad | 42000 | 3.8 | 11053 |
| Delicias | 105000 | 9.5 | 11053 |
| Actur-Rey Fernando | 53000 | 6.1 | 8689 |
| Casablanca | 28000 | 8.9 | 3146 |
From this table, it’s clear that Delicias is the most populous district, featuring large shopping centers and a comprehensive transportation network. While Centro doesn’t have the highest population, it has the highest density and the most complete living facilities.
Population Structure and Age Distribution
Zaragoza’s age structure is relatively balanced. People aged 65 and above account for approximately 19%, slightly below the Spanish national average. The younger demographic is mainly concentrated in the Universidad district, near the University of Zaragoza, where rental prices are relatively affordable. Immigrant population accounts for about 12% of the total, primarily from Romania, Morocco, and Latin American countries, bringing a multicultural atmosphere to the city.
Urban Area and Spatial Layout
Zaragoza’s municipal area covers approximately 1,062 square kilometers, but the actual built-up area is only about 200 square kilometers, with the remainder consisting of agricultural land and nature reserves. The Ebro River divides the city into northern and southern parts, with the north bank being the traditional old town and the south bank being the rapidly developing new area in recent years. After the 2008 Expo, the city has expanded significantly toward the southwest, with new communities like Valdespartera continuously emerging.
Future Development Trends
Looking at data from the past decade regarding Zaragoza tactics, Zaragoza’s population growth has been relatively stable, with an average annual growth rate of about 0.3%. This steady growth ensures urban vitality while avoiding problems caused by excessive expansion. City planning departments predict that by 2030, the metropolitan area population will reach around 800,000, with main growth points in peripheral new residential areas and industrial parks. For those considering settling here, now is an excellent time to understand the characteristics of various districts and choose a suitable place to live, including exploring the Zaragoza manuscript.
Zaragoza’s moderate scale and reasonable cost of living make it a highly livable city. I hope this data and analysis helps you better understand this capital of Aragon.