Posts for Tag: population

Assembling the USA state-by-state with state-level statistics

Posted In: Maps
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Watch the United States assemble state by state based on statistics of interest

Based on earlier popularity of the country-by-country animation, this map lets you watch as the world is built-up one state at a time. This can be done along a large range of statistical dimensions:

  • Name (alphabetical)
  • abbreviation
  • Date of entry to the United States
  • State Population (2018)
  • Population per Electoral Vote (2018)
  • Population per House Seat (2018)
  • Land Area (square miles)
  • Population Density (ppl per sq mi) (2018)
  • State’s Highest Point
  • Highest Elevation (ft)
  • Mean Elevation (ft)
  • State’s Lowest Point
  • Lowest Point (ft)
  • Life Expectancy at Birth (yrs)
  • Median Age (yrs)
  • Percent with High School Education
  • Percent with Bachelor’s Degree
  • Residential Electricity Price (cents per kWh) (2018)
  • Gasoline Price ($/gal) Regular unleaded (2019)
  • State Gross Domestic Product GDP ($Million) (2018)
  • GDP per capita ($/capita)
  • Number of Counties (or subdivisions)
  • Average Daily Solar Radiation (kWh/m2)
  • Birth rate (per thousand population)
  • Avg Age of Mother at Birth
  • Annual Precipitation (in/yr)
  • Average Temperature (deg F)
  • These statistics can be sorted from small to large or vice versa to get a view of the US and its constituent states plus DC in a unique and interesting way. It’s a bit hypnotic to watch as the states appear and add to the country one by one.

    You can use this map to display all the states that have higher life expectancy than the Texas:
    select “Life expectancy”, sort from “high to low” and use the scroll bar to move to the Texax and you’ll get a picture like this:
    States with higher life expectancy than Texas

    or this map to display all the states that have higher population density than California:
    select “Population density, sort from “high to low” and use the scroll bar to move to the United States and you’ll get a picture like this:
    States with higher population density than California

    I hope you enjoy exploring the United States through a number of different demographic, economic and physical characteristics through this data viz tool. And if you have ideas for other statistics to add, I will try to do so.

    Data and tools: Data was downloaded from a variety of sources:

    • Population https://en.wikipedia.org/wiki/List_of_states_and_territories_of_the_United_States_by_population
    • Admission to union https://simple.wikipedia.org/wiki/List_of_U.S._states_by_date_of_admission_to_the_Union
    • Educational attainment https://nces.ed.gov/programs/digest/d18/tables/dt18_104.88.asp
    • Highest points https://geology.com/state-high-points.shtml
    • Life expectancy https://en.wikipedia.org/wiki/List_of_U.S._states_and_territories_by_life_expectancy
    • Median Age http://www.statemaster.com/graph/peo_med_age-people-median-age
    • Land area https://statesymbolsusa.org/symbol-official-item/national-us/uncategorized/states-size
    • Mean elevation https://www.census.gov/library/publications/2011/compendia/statab/131ed/geography-environment.html
    • Electricity price https://www.chooseenergy.com/electricity-rates-by-state/
    • Gasoline price https://gasprices.aaa.com/state-gas-price-averages/
    • GDP https://www.bea.gov/data/gdp/gdp-state
    • Sunlight North America Land Data Assimilation System (NLDAS) Daily Sunlight (insolation) for years 1979-2011 on CDC WONDER Online Database, released 2013. Accessed at http://wonder.cdc.gov/NASA-INSOLAR.html on Jun 14, 2019 1:37:15 PM
    • Births United States Department of Health and Human Services (US DHHS), Centers for Disease Control and Prevention (CDC), National Center for Health Statistics (NCHS), Division of Vital Statistics, Natality public-use data 2007-2017, on CDC WONDER Online Database, October 2018. Accessed at http://wonder.cdc.gov/natality-current.html on Jun 14, 2019 1:53:58 PM
    • Precipitation North America Land Data Assimilation System (NLDAS) Daily Precipitation for years 1979-2011 on CDC WONDER Online Database, released 2013. Accessed at http://wonder.cdc.gov/NASA-Precipitation.html on Jun 26, 2019 3:30:40 PM
    • Temperature http://www.usa.com/rank/us–average-temperature–state-rank.htm

    The map was created with the help of the open source leaflet javascript mapping library

    Assembling the World Country-By-Country

    Posted In: Maps
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    Watch the world assemble country-by-country based on a specific statistic



    This map lets you watch as the world is built-up one country at a time. This can be done along the following statistical dimensions:

    • Country name
    • Population – from United Nations (2017)
    • GDP – from United Nations (2017)
    • GDP per capita
    • GDP per area
    • Land Area – from CIA factbook (2016)
    • Population density
    • Life expectancy – from World Health Organization (2015)
    • or a random order

    These statistics can be sorted from small to large or vice versa to get a view of the globe and its constituent countries in a unique and interesting way. It’s a bit hypnotic to watch as the countries appear and add to the world one by one.

    You can use this map to display all the countries that have higher life expectancy than the United States:
    select “Life expectancy”, sort from “high to low” and use the scroll bar to move to the United States and you’ll get a picture like this:
    Countries with higher life expectancy than US

    or this map to display all the countries that have higher population density than the United States:
    select “Population density, sort from “high to low” and use the scroll bar to move to the United States and you’ll get a picture like this:
    Countries with higher population density than US

    I hope you enjoy exploring the countries of the world through this data viz tool. And if you have ideas for other statistics to add, I will try to do so.

    Data and tools: Data was downloaded primarily from Wikipedia: Life expectancy from World Health Organization (2015) | GDP from United Nations (2017) | Population from United Nations (2017) | Land Area from CIA factbook (2016)
    The map was created with the help of the open source leaflet javascript mapping library

    World Population Distribution by Latitude and Longitude

    Posted In: Maps
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    How is population distributed by latitude and longitude

    This interactive map shows how population is distributed by latitude or longitude. It animates the creation of a bar graph by shifting population from its location on the map to aggregate population levels by latitude or longitude increments. Each “block” of the bar graph represents 1 million people. Population is highest in the northern hemisphere at 25-26 degrees North latitude and 77-78 degrees East Longitude.

    Instructions:

    It should be relatively explanatory. Press the “Aggregate Population by Latitude” button to make a plot of population by line of latitude (i.e. rows of the map).
    Press the “Aggregate Population by Longitude” button to make a plot of population by line of longitude (i.e. columns of the map). To see the population distributed across the map, press the “Show Population Grid” button.

    This map was inspired by some mapping work done by neilrkaye on twitter and reddit.

    Data Sources and Tools:
    This map projection is an equirectangular projection. Data on population density comes from NASA’s Socioeconomic Data and Applications Center (SEDAC) site and is displayed at the 1 degree resolution. This interactive visualization is made using the awesome leaflet.js javascript library.

    population by longitude and latitude