Population

46 posts
Where Americans Live

Everyone gets a dot. You get a dot. And you get a dot. And you.Read More

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Race and ethnicity map of dots

CNN goes with the dot density map for their first pass on the 2020 decennial. Each dot represents a certain number of people depending on your zoom level. Color represents race or ethnicity. Does CNN have a limited color palette that they’re allowed to use? I would’ve gone for more contrast between the light blue for white and darker-but-still-light blue for American Indian/Alaskan Native. See also: Dustin Cable’s racial dot...

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Historical shifts in where people live

The places in the United States with the highest populations weren’t always like that. There were shifts over decades. With the recent Census release for state populations, Harry Stevens and Nick Kirkpatrick for The Washington Post go all in with a series of bump charts to show the changes in state population rankings since 1920. They point out historical markers along the way, split it up by region, and provide...

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Map of nighttime lights normalized by population

You’ve probably seen the composite map of lights at night from NASA. It looks a lot like population density. Tim Wallace adjusted the map for population, so that you can see (roughly) the areas that produce more light per person. Adjusting NOAA nighttime lights for population reveals areas that create an outsized amount of light per person living there. pic.twitter.com/k91cGyWvLd — Tim Wallace (@wallacetim) November 10, 2019 Tags: lights, population,...

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Game: How many US cities can you name?

How many US cities can you name? Here’s a quick and fun game by Ian Fisher to find out. Simply start entering as many as you can think of and rack up population counts as a sort of point system. Tags: city, game, population

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Searching for the densest square kilometer in different cities

Based on data from Gridded Population of the World, geographer Garrett Dash Nelson calculated the square kilometers in major cities with the highest population density. On CityLab: In the interactive visualization, I’ve taken GPW data for a curated selection of American cities. Some have old, historic cores, and others are dominated by more recent development; some have constricting physical geographies and others lie on relatively flat, open plains; some were...

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Population mountains

You’ve seen the maps of population density. You’ve seen the jokes. But you haven’t seen population at high granularity in a 3-D view. Matt Daniels for The Pudding used a mountain metaphor to show the peaks and valleys of population around the world. You get more out of the data in this view than you would the overhead, which tends to obscure the variation in large cities. Although if you...

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Ask the Question, Visualize the Answer

Let's work through a practical example to see how asking and answering questions helps guide you towards more focused data graphics. Read More

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World population estimator and gridded data from NASA

Population data typically comes in the context of boundaries. City data. County data. Country data. With their Population Estimate Service, NASA provides data at higher granularity. You can request estimated population in the context of a world grid. Here’s an interactive map to demonstrate the API. Click and drag a shape across any region in the world and get an estimate of the population within that shape. [via kottke] Tags:...

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Common Ground Between North and South Korea: Aging and Shrinking Populations

The birth rate in South Korea, where I live and work, hit a record low this year, leading to concern about the impact an aging (and, eventually, shrinking) population might have on the nation’s society and economy. These charts show the long-term trends, both in actual population and projected changes, according to United Nations data. I’ve added North Korea, which actually has a higher fertility rate today, for context. First,...

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