What is Urban Growth?

Urban growth refers to the rate at which the population, land area, or significant land-use increases. Also defined as the growth of metropolitan areas or cities, it is something that started way back between the 5000 and 6000 B.C., especially due to the movement of people from rural areas to urban areas – places with high human population, economic activities, and infrastructure. The 19th century, in particular, was a mark of actual urban growth.

And since 1800, the urban revolution has rapidly increased, reaching new levels in the history of the world today. Urban growth is also closely linked to urbanization or urbanism, a term used to refer to an increasing proportion of a population residing in urban areas such as cities, suburbs, towns, and contributions.

Human civilization has been changing the Earths environment for millennia, often to our detriment. Dams, deforestation and urbanization can alter water cycles and wind patterns, occasionally triggering droughts or even creating deserts

~ Jamais Cascio

Urban growth is, therefore, utilized as an indicator for a country’s or an area’s economic condition as well as development. The growth of urban areas is often influenced by certain factors such as surplus resources, development of infrastructure, commercialization, education, and mining among others.

This article seeks to shed more light on the causes of urban growth and will also differentiate between urban growth and urbanization, which are sometimes used interchangeably.

Various Causes of Urban Growth

1. The natural increase in population

The rate of death and births characterizes the natural expansion of an area. In areas where births are more than the deaths, the population is bound to increase. People who migrate to town and cities tend to be young people who are in search of housing, jobs, or better education.

Young men and women have a high fertility rate; therefore, they increase in numbers quickly and will eventually look for new spaces within the urban area to settle and fend for their kind.

2. Migration

Immigration is a major contributor to the increase in the population of a place. Many people are forced to move to urban areas in search of jobs, education, and housing. Inadequate funding and social infrastructure have also driven people to urban areas.

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In other cases, political, racial, economic, or religious conflicts have forced people to move to neighbor urban areas.

3. Industrialization

The industrial revolution brought about new production techniques. By this, manufacturing has created more job opportunities by providing people with the opportunity to be employed in new sectors.

With modern farm machinery, employment in the rural areas reduced, forcing workers to move in search of new jobs in tertiary and manufacturing industries.

Also, in pursuit of increased wages, men and women continue to abandon jobs in rural areas by moving to industrial cities. Many people move to urban centers to look for well-paying industrial jobs as urban centers have uncountable opportunities.

4. Commercialization

Whereas industrialization has played an essential role in the growth of urban areas, commerce and trade have profoundly influenced the growth of cities. In ancient times, cities like Athens, Sparta, and Venice were great commercial centers.

In modern life today, the commercial activities in city and industrial areas continue to attract more and more people as traders and workers thereby contributing to the growth of cities and town areas.

Businesspeople prefer going to the cities to sell their commodities and in search of higher profits. The kind of economic pull urban centers have is one that attracts more and more people to move to urban areas.

5. Advancement of transport and communication

When factories were introduced, the local transportation was weak, forcing the factory laborers to reside near their place of work. The cities were partitioned into dwelling areas, market area, factory area, slums, and so on.

Increased population led to congestion of housing and added to the already existing community by extension of boundaries.

Today, people prefer to live near their place work not because of poor transport but to shorten distance travel and avoid the traffic jam on their way work. Active transportation helps to make the cities more habitable by easing communication, transportation, and creating convenient accessibility.

6. Availability of educational and recreational facilities

Most training institutions, colleges, elementary schools, and technical institutions are in urban areas. Also, most libraries are located in the cities. Recruiting agencies, as well as the examination councils, are situated in the cities.

Clearly, due to the location of these facilities, most students and adult learners are attracted to the town for easy accessibility of higher education. Opera and Amusement Theaters are also in urban areas, drawing more people to the cities.

7. Urban planning policies

Urban planning typically forces city leaders to find ways of making a sustainable city, including proper town development and expansion plans. As a strategy aimed at converting vision into implementation, it acts as a guide for making the most out of a city by improving infrastructure and building its economic growth and enhancing the city’s living standards as well as the resident’s well-being.

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With better living standards and infrastructures in the city, more people are attracted to live in the municipality, consequently increasing its population.

8. Topographical factors

The topography of an area can have huge impacts on the growth of a city. An area with a suitable topography is usually easy to develop and expand. Urban areas in or around an excellent topographical area are easily extended and refined, thus drawing more people to such areas.

9. Unbalanced spatial development

In many countries around the world, there are developed regions and less developed regions. Many people tend to move to more developed areas.

Occasionally, urban centers (cities) are more developed than rural areas because of the available facilities and opportunities offered in urban areas. On this account, the population and size of the metropolitan area will automatically increase within a given period.

10. Transformation and modernization in the way of living

Transformation and modernization play a very significant role in attracting people to the cities. As technology improves, together with highly sophisticated infrastructure, liberation, communication, dressing code, medical facilities, and other social services offered; people tend to believe they can live a more comfortable life in the cities.

In growing urban areas, people easily embrace changes in the styles of living, for instance, mode of dressing, attitude, habits, and views. As a result, more people are attracted to the cities, and the cities continue to grow day after day.

11. Mining and investments

As more urban areas continue being successful and well-off due to the discovery of minerals, resource exploitation, agricultural activities, or business operations, urban areas continue to grow economically.

Societies continue being financially liberal due to the availability of jobs in urban areas. As a result, more investors are attracted to invest in such cities, promoting their growth.

12. Presence of functional administrative and social support offices

The presence of an administration dominance in an urban center promotes its growth. Many cities today hold offices for various administration and governance functions, which influences people to live in these areas for access to better governance and social amenities like security, sanitation, housing, education, and healthcare.

Differences Between Urban Growth and Urbanization

The difference between urban growth and urbanization can be categorized using three broad aspects including:

1. Population (immigration versus rural-urban migration)

Urban growth is characterized by population increase while urbanization can be termed as the increasing proportion of a country’s population living in an urban area. Urbanization is expressed as a ratio or a percentage of the entire population, through the process of transforming rural areas into urban areas.

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Urbanization, therefore, mainly involves rural-urban migration. Contrarily, urban growth involves the immigration of people. Urban growth happens when the increase in the number of people is not proportional to the number of urban dwellers in an area.

2. Land area (extensive land area versus intensive land area coverage)

In terms of urbanization, the land area covered is often extensive owing to large-scale economic development. In other words, urbanization is linked to economic development in the sense that; urbanization cannot occur if there lacks widespread economic development that covers a wide geographical area, which often comes about due to high per capita income.

Urban growth, on the other hand, can take place without far-flung economic growth and it is not strictly influenced by extensive land area coverage.

3. Infrastructural versus economic/commercial change

Urban growth primarily happens when there is infrastructural development in terms of manufacturing, invention, housing, and new transport systems or routes that encourage the immigration of people into new urban spaces.

Urbanization, on the other hand, is mainly influenced by increased commercial or economic activities within an area. The meaning of this is that urbanization is defined by the economic hub of an area. The more the economic, capital investments, and trade activities within an area; the more urbanized it becomes.


UN Department of economics and social affairs. (2001). The concept of urban growth. Retrieved from https://population.un.org/wup/Archive/Files/studies/United%20Nations%20(2001)%20-%20The%20Components%20of%20Urban%20Growth%20in%20Developing%20Countries.pdf

Abhishek, N., Jenamani, M., & Mahanty, B. (2017). Urban growth in Indian cities: Are the driving forces really changing?. Habitat International69, 48-57.

Durlauf, S. N., & Blume, L. E. (2008). Urban growth. Retrieved from https://www.princeton.edu/~erossi/UG.pdf

Ojo, S. S., Tpl, D. B., & Pojwan, M. A. (2017). Urbanization and Urban Growth: Challenges and Prospects for National Development. Journal of Humanities and Social Policies3(1), 65-71.

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