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Animated Map: The History of U.S. Counties

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Animated Video: The History of U.S Counties

Did you know that there are 3,142 different counties in the U.S. today?

Going as far back as the 1600s, English settlers arriving in the New World envisioned counties as a means of accessible government—a county seat was meant to be within a day’s buggy ride for every citizen.

While the role of counties in local government has remained significant in modern times, their boundaries have changed drastically over the years.

This animated map by Alexander Varlamov visualizes the history of U.S. county borders, and how these jurisdictions have evolved over time.

County Equivalents

Before diving in, it’s important to note a few county-equivalents that function similarly but go by different names:

  • Boroughs/Census areas: Alaska is made up of 19 boroughs, but the majority of its landmass is not included in them. Rather, it’s officially labeled by the Alaskan government as the unorganized borough.
  • Parishes: Instead of counties, Louisiana uses the term parishes because of its French and Catholic heritage.
  • Independent cities: These are cities that operate outside their surrounding county’s jurisdiction. There are 41 independent cities in the U.S. and 38 of them are in Virginia.

Over 300 Years of Growth

The number of counties in the U.S. has increased dramatically since the early days of American history. Here’s a look at their growth since 1790:

YearNumber of Counties and Parishes
1790292
18501621
18702247
19002713
19203041

The first county was established in 1634, over 100 years before the first Census was taken (and long before America gained independence). It was created in James City, Virginia—an interesting location, considering Virginia now has the highest concentration of independent cities.

Why does Virginia have so many independent cities? The state’s separation of counties and cities dates back to the early 1700s. With a rural population and low productivity, it was difficult to establish town centers. After several attempts, the General Assembly gave up. Independent cities were established instead.

Short-lived Counties

Counties as a political organization have been around for hundreds of years, but some individual counties haven’t lasted long.

For instance, Bullfrog County in Nevada was established in 1987 and dissolved just two years later. During its brief existence, it had no population and no infrastructure—and its primary purpose was simply to prevent Yucca Mountain from becoming a nuclear waste dump.

While Bullfrog County has since been dissolved, the controversy around the nuclear waste site is ongoing as of 2020.

Continual Change

The latest official county, Broomfield Country, was established in Colorado in 2001.

Although it’s been decades since the last county was created, there have been continual boundary changes and status updates—sometimes for political reasons. For instance, the Supreme Court recently ruled that half of Oklahoma is within a Native American reservation. While this doesn’t necessarily change ownership, it does affect jurisdiction and county authority.

Though the lines on the map are more or less static now, the invisible lines of county jurisdiction will continue to change and evolve over time.

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Maps

Mapped: European Colonial Shipping Lanes (1700‒1850)

This map plots the colonial shipping lanes used by the British, the French, the Spanish, and the Dutch in the 18th and 19th centuries.

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European Colonial Shipping Lanes (1700‒1850)

Every year, thousands of ships ferry passengers and transport goods across the world’s oceans and seas.

200 years ago, the ships navigating these waters looked very different. Explorers and traders sailed from coast to coast to expand colonial empires, find personal riches, or both.

Before modern technology simplified bookkeeping, many ships kept detailed logbooks to navigate, tracking the winds, waves, and any remarkable weather. Recently, these handwritten logbooks were fully digitized into the CLIWOC database as part of a UN-funded project by the University of Madrid.

In this graphic, Adam Symington uses this database to visualize the British, French, Spanish, and Dutch shipping routes between 1700 and 1850.

Colonial Shipping Lanes

In the 18th and 19th centuries, the British, French, Spanish, and Dutch empires dominated global trade through their colonial shipping lanes.

All four nations sailed across the Atlantic Ocean with some frequency over that timeframe, but these fleets were also very active in the Pacific and Indian Oceans as well.

The table below reflects the record of days spent by digitized logbooks from each nation.

CountryN. AtlanticS. AtlanticIndian OceanPacific All Oceans
🇪🇸 Spain28,63511,8126201,70342,770
🇬🇧 U.K.40,87317,73223,1061,48183,192
🇳🇱 Netherlands51,97723,45731,7591,481108,674
🇫🇷 France3,9301862058965,217
Total125,41553,18755,6905,561239,853

Does this mean that the Netherlands had the widest colonial reach at the time? Not at all, as researchers noted that there were thousands of logbooks from each country that weren’t able to be digitized, and thousands more that were lost to time. The days simply reflect the amount of data that was available to examine from each country.

But they can still give us an accurate look at critical shipping routes between European countries, their trade partners, and their colonies and territories.

Let’s now take a closer look at the colonial powers and their preferred routes.

The British

The British shipping map shows a steady presence across the Atlantic and the Indian Ocean. They utilized many of Europe’s ports for ease of trade, with strong pre-independence connections to the U.S., Canada, and India.

One of the most frequented shipping routes on the map seen is a triangular trade route that enabled the trans-Atlantic slave trade. This route facilitated the transportation of slaves from Africa to the Americas, raw materials such as sugar, tobacco, and cotton from the American colonies to Europe, and arms, textiles, and wine from Europe to the colonies.

The Spanish

During this period, Spanish maritime trade with its colonies was an essential economic component of the Kingdom of Spain (as with other colonial empires).

We can see the largest concentration of Spanish ships around Central and South America leading up to the Spanish American wars of independence, as those colonies were especially important suppliers of raw materials such as gold, silver, sugar, tobacco, and cotton. There are some lanes visible to Pacific colonies like the Philippines.

The French

Of the four empires, France’s maritime logbooks were the most sparse. The records that were digitized show frequent travel and trade across the North Atlantic Ocean to Canada and the Caribbean.

The French empire at the time included colonies in the Caribbean, Indian Ocean, and West Africa. Their trade routes were used to transport goods like sugar, coffee, rum, and spices, while also relying on the slave trade to maintain plantation economies. The French colony of Saint-Domingue (now Haiti) was one of the world’s wealthiest colonies in the late 18th century.

The Dutch

Dutch shipping routes from the time had the most detail and breadth of any country, reflective of the Dutch East India Trading Company’s position as the world’s dominant company and trade force.

These include massive traffic to the Dutch East Indies (now Indonesia), Cape Colony (now South Africa), and the Guianas in South America.

Interestingly, researchers from Leiden University found that the Dutch empire was a “string of pearls” consisting mostly of strategic trading hubs stretched along the edges of the continents and focused on maritime power.

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