Light Pollution Map - Where to See the Aurora Borealis

Mapping the Death Penalty

This map does a good job of showing the types of countries that use the death penalty and those that don't.

Broadband Map for the United States

The National Broadband Map has some neat maps. For instance the speed test one shows that real speeds are slower than advertised ones in my area (but surprisingly in some areas they are actually slower than real speed).

Changing Racial Demographics on Your Block: A Map

There is an amazing website Urban Research Maps that lets you see how racial demographics have changed on a block level over the past ten years - between the 2000 and 2010 census.

It has data for only part of the United States, but this data includes PA, NY and several other major states.

My neighborhood in 2000

ArcGis Online - Neat Maps

ArcGis Online has some neat maps like
this one which fits Americans into nice marketing categories. You can zoom in to the block group level (Census data category) and get detailed information about your community!

Mapping Lead in Philadelphia organized free lead tests for a week. They tested over 350 samples, primarily from Philadelphia.

About 10% of the samples had > 1000 ppm lead (the point at which it becomes not so good for growing vegetables).

I color coded the markers based on lead levels and created this map:

Mapping Food Access

The government has an interesting Food Environment Atlas that lets you map things by county.

One neat layer is pounds of fruits/veggies eaten at home per capita. They also have grocery store access, food prices, and a lot more!

NY Times maps Census Data

The NY Times has come up with a new map using Census data on income, race, housing, same sex partners, and education. Nifty interface!

The data is from 2005-2009, the American Community Survey, which is happens in-between the major decennial census.

They display the data at the census tract level if you zoom in. I cannot tell if they are trying to show block level data - as they have dots representing data on blocs, however I don't think the American Community Survey does blocks.

Mapping Human Development Index in the US

This map is insanely good

Income, race, education, health, political participation and more -- all presented in a user friendly format.

The only downside is that their smallest area is a Congressional District. They should have done zip codes! More work, but so much more logical.

Heat Maps for Coal, Gas, Nuclear, Oil and other power plants

I've got heat maps working for operating coal, nuclear, gas, biomass, hydro, and municipal solid waste incinerators.

List of Heat Maps

I broke the lower 48 states in the US into around 700,000 grid squares. Roughly 3 x 3 mile.

You can see the heat map with the markers that link to more detailed facility information, or without them.

There are three different levels of color saturation which let you decide whether to show a map saturated with facilities, or a "points of light" view.

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