World Wide Webfoot Maps

Expert Census/Google Mashups

If you are feeling bold, you can customize your data display. Afterwards, you can save the URL of that map and use it over again. If, however, you don't want something so elaborate, you can pick a map from a list of pre-made maps.

To make a custom map, you will need to choose:

• What to plot
• How to normalize the data
• Min/max range limits
• Starting location
• A title

What to plot

First, choose what data you want to plot. There are a lot of data values that you can choose to plot, and you can also choose one of a few values to divide the main data by.

For example, if you want to see the population density, choose total population for your main data and divide it by the area. If you want to see the percentage of Native Americans, choose Native American population first, then divide by total population. If you want to see the percentage of households headed by single men, select "Housholds of single men" and then divide by "households".

You could select "median age" and then divide by "area" if you want, but it would be strange. Generally, there is one divisor that makes the most sense to use, so the table of the main data is divided into five columns corresponding to the divisor that makes the most sense to use.

First select the main data to plot (numerator):
Total population	Area	Number of households	Number of housing units	(no normalization)
Men Women Whites Blacks Asians Latinos Pacific Islanders Native Americans Other Multi-racial Under 5 5-17 18-22 22-29 30-39 40-49 50-64 over 64	Total population Number of households Number of families Number of housing units	Households of men with no kids Households of women with no kids Households with a married couple and children Households with a married couple and no children Households with a male head of houshold and children Households with a female head of houshold and children	Vacant housing units Owner-occupied housing units Rental housing units	Median age Median age for men Median age for women Average household size Average family size
Next select a divisor (denominator):
total population	area	households	housing units	(no normalization)

Min/Max data range

Next, choose a min/max range for the data. Values higher than the max will be solid red; values at the min will be solid white.

Population densities range from under 1,000 for most rural areas to 100,000 in the most densly populated urban areas. 0 to 20000 is a nice compromise range for population density. For minority groups, you should lower the max.

For percentage figures, you can certainly do 0 to 1. However, sometimes that range is too broad. For example, the percentage of men and percentage of women are pretty close to 0.5, so you might want min/max of more like .4 to .6.

Min:
Max:

Starting Location

Enter your starting location below in decimal latitude/longitude coordinates (e.g. 117.89, not 117°53'49") (Find your latitude and longitude coordinates.)

Latitude
Longitude

Title

Finally, give a title for your map:

Ducky Sherwood