Uk Vs California Size Comparison: Just How Big Is California Compared To Great Britain?

California is famous for its sprawling metropolises, vast farmlands and grand natural landscapes. The United Kingdom may seem small by comparison, but just how do the two places stack up in terms of sheer size?

If you’re short on time, here’s a quick answer: California is significantly larger than the UK in total area. California spans over 423,000 square kilometers, while the UK covers just under 250,000 square kilometers.

In this in-depth guide, we’ll analyze the numbers and dimensions to definitively compare the size of the UK and California. Looking at total area, land size, length, population and other key metrics, you’ll get a clear picture of how these two iconic places measure up.

With facts, figures and visual depictions, you’ll gain a true sense of the sheer scale of California compared to the island nation that is the United Kingdom.

California Occupies Over 160,000 More Square Kilometers than the UK

When it comes to land area, California has a significant advantage over the United Kingdom. Spanning an impressive 423,970 square kilometers, the Golden State is over 160,000 square kilometers larger than the UK, which covers 243,610 square kilometers.

This vast difference in size can be attributed to various factors, including geographical location, population density, and historical development.

California Spans 423,970 Square Kilometers

California, located on the west coast of the United States, is the third-largest state in terms of land area. It stretches from the Mexican border in the south to the Oregon border in the north and covers a diverse range of landscapes, including mountains, deserts, and coastline.

With its vast expanse, California is home to numerous cities, including Los Angeles, San Francisco, and San Diego, as well as famous landmarks like Yosemite National Park and the Golden Gate Bridge.

The UK Covers 243,610 Square Kilometers

In contrast, the United Kingdom is a relatively small island nation located off the northwestern coast of mainland Europe. Comprising four constituent countries – England, Scotland, Wales, and Northern Ireland – the UK has a rich history and cultural heritage.

Despite its smaller size, the UK has made significant contributions to various fields, including science, literature, and music.

Visualizing the Size Difference on a Map

To truly understand the magnitude of the size difference between California and the UK, it can be helpful to visualize it on a map. By overlaying the two landmasses, it becomes clear just how much larger California is in comparison.

This visual representation highlights the vastness of California’s land area and emphasizes the scale of its diverse landscapes.

Comparing UK Home Nations and California Regions

While the UK as a whole may be smaller than California, it is important to note that the UK is composed of multiple distinct regions, each with its own unique characteristics. England, for example, is the largest and most populous country within the UK, covering approximately 130,279 square kilometers.

Scotland, on the other hand, spans around 78,387 square kilometers, while Wales covers about 20,779 square kilometers. Northern Ireland is the smallest of the UK’s constituent countries, occupying approximately 14,160 square kilometers.

Similarly, California can also be broken down into different regions, such as Southern California, Central Valley, and Northern California. Each of these regions has its own distinct landscapes, attractions, and cultural influences.

From the bustling streets of Los Angeles to the serene beauty of the Napa Valley vineyards, California’s diverse regions offer something for everyone.

California’s Land Area Is Nearly Double That of the UK

California’s Land Area is 403,935 Square Kilometers

When comparing the land area of California to that of the United Kingdom, it becomes evident that California is significantly larger. With a land area of approximately 403,935 square kilometers, California dwarfs the UK in terms of size.

This vast expanse of land offers endless opportunities for exploration and diverse landscapes, ranging from stunning coastlines to majestic mountains.

The UK’s Land Area is 241,930 Square Kilometers

In contrast, the land area of the United Kingdom is approximately 241,930 square kilometers. While the UK may be smaller in size, it still packs a punch in terms of historical landmarks, cultural heritage, and natural beauty.

Accounting for Bodies of Water

It is important to note that when comparing land area, we are only considering the physical landmass and not bodies of water. The UK, being an island nation, is surrounded by water, with the North Sea, the English Channel, and the Atlantic Ocean forming its boundaries.

California, on the other hand, borders the Pacific Ocean. These bodies of water contribute to the unique geographical features and climates of both regions.

Comparing Arable Land

When it comes to arable land, the UK has a higher percentage compared to California. The UK’s fertile soils and moderate climate make it suitable for agriculture, with a variety of crops grown throughout the country.

In California, while there are significant agricultural areas, such as the Central Valley, the arable land is not as extensive as in the UK.

Understanding the size comparison between California and the UK allows us to appreciate the vastness and diversity of both regions. While California may have a larger land area, the UK’s rich history, cultural heritage, and lush landscapes make it a fascinating destination for exploration.

California Extends Nearly 1,000 Kilometers, More than Double the UK’s Length

When it comes to size, California is an absolute giant, stretching nearly 1,000 kilometers from its northern border with Oregon to its southern border with Mexico. This makes it more than double the length of the entire United Kingdom, which spans less than 600 kilometers.

The sheer size of California is truly impressive and highlights just how vast the state is compared to its European counterpart.

California Stretches 1,300 Kilometers Long

California’s impressive length of nearly 1,000 kilometers is just one of its many geographical features that contribute to its diverse landscape. From the picturesque beaches of the Pacific Coast to the towering peaks of the Sierra Nevada Mountains, this state offers an array of natural wonders that attract millions of visitors each year.

Its length also allows for a wide range of climates and ecosystems, making it a haven for outdoor enthusiasts and nature lovers.

The UK Spans Less than 600 Kilometers

On the other side of the Atlantic, the United Kingdom spans less than 600 kilometers from its southernmost point in Cornwall to its northernmost point in the Shetland Islands. Despite its relatively small size, the UK is known for its rich history, diverse culture, and iconic landmarks such as Big Ben and Stonehenge.

While it may not have the same physical expanse as California, the UK makes up for it with its rich heritage and influence on the global stage.

Visualizing the Distance Across California

To put California’s length into perspective, imagine driving from the southernmost point of the state in San Diego all the way to the northernmost point in Crescent City. This journey would cover a distance of roughly 1,300 kilometers, taking you through bustling cities, scenic coastal highways, and breathtaking national parks.

Such a trip would showcase the incredible diversity and beauty that California has to offer.

Comparing Widths

While California may be significantly longer than the UK, it is important to note that the width of both regions is quite similar. California spans an average width of around 400 kilometers, while the UK measures approximately 400 kilometers at its widest point.

This means that both regions have a comparable breadth, despite their contrasting lengths.

The UK Has Over Twice as Many Residents as California

When it comes to population, the United Kingdom outnumbers California by a significant margin. With a population of approximately 67.22 million people, the UK has over twice as many residents as California. This makes the UK one of the most densely populated countries in Europe.

67.22 Million People Live in the UK

The population of the United Kingdom is estimated to be around 67.22 million people. This includes England, Scotland, Wales, and Northern Ireland. The UK has a rich and diverse cultural heritage, with people from different backgrounds and nationalities calling it home.

From the bustling streets of London to the picturesque countryside of the Cotswolds, the UK offers a wide range of experiences for its residents.

California’s Population is 39.51 Million

California, on the other hand, has a population of approximately 39.51 million people. Known for its sunny beaches, vibrant cities, and diverse landscapes, California is a popular destination for tourists and residents alike.

From the iconic Hollywood sign in Los Angeles to the Golden Gate Bridge in San Francisco, California offers a unique blend of natural beauty and urban excitement.

Population Density Comparisons

When comparing population density, the UK is significantly more densely populated than California. With a land area of approximately 93,628 square miles, the UK has an average population density of around 716 people per square mile.

In contrast, California has a land area of approximately 163,696 square miles, resulting in an average population density of around 241 people per square mile. This means that the UK has almost three times the population density of California.

Growth Trends

Both the UK and California have experienced population growth over the years, although at different rates. The UK’s population has been steadily increasing, driven by factors such as immigration and a higher birth rate.

On the other hand, California’s population growth has been more volatile, influenced by factors such as migration patterns and economic conditions.

It is important to note that population statistics can change over time, and the numbers mentioned here are based on the most recent available data. For more information on population statistics, you can visit for UK statistics and for California statistics.


When you look at the numbers, it’s clear that the state of California is substantially larger than the United Kingdom in terms of sheer geographic size. California outsizes the UK in overall area, land area and length by significant margins.

However, the UK packs in more than twice as many residents as the sprawling state of California. So while California occupies a much vaster physical area, the UK crams in a larger population through denser cities and towns.

The massive size of California compared to the relatively small UK is a testament to the abundance and grandeur of the natural landscapes that make California so iconic. But the UK’s high population density reflects the power of urban areas like London and significance of the UK on the world stage.

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