U. S. Racial Groups in Metropolitan Areas, 1990
In this project you will be mapping US Census data for the five
racial/cultural groups -- White, Black, Native American, Asia-Pacific, and
Hispanics (labeled PopHispa in the data) -- using the mapping
software Census+Maps, found
in all NT computer labs at UWEC. The source for these data are the 1990
U.S. Census of Population.
To complete the project, follow the
:
Find
the
Mapping Program
Find the Start
button in the lower
left-hand corner of the computer screen; select Programs,
Departmental, Geography, and then the software
Census+Maps.
Select
the
Metropolitan
Area
- To determine which metropolitan area YOU MUST STUDY, divide the
last two digits of your 7-digit UWEC ID number by 2 and round up, if
necessary.
For example, the last two digits of the ID#
1234533 are 33, divided by 2 equals 16.5 and
rounded up results in 17.
- Now select the corresponding ranked number (17 from the above
example) from the list of the 77 largest
metropolitan
areas (which is Milwaukee, WI in this example). Be sure
you map only the metro area that you are responsible for. Many metro areas
consist of two or more cities -- map only your metro area!!! Consult
a detailed atlas or use the
MapQuest web site, which is
also shown at the bottom of this page.
Map the Census
Data
In the
CensusCD + Maps program, make a map by following this order:
(the
larger words appear in
the top menus; select each
of the bold words yourself)
- Area: Geographic Area;
MSA/CMSA; pick your metro area
- Subarea: Tracts
- Count: Standard;
General
Profile
(it contains the race and Hispanic variables)
- Run: Map
- Once the map is drawn, make the page as large as possible by clicking
on the square
in the
top right-hand corner of this page; on the same line where it
says Map of C:\TEMP\....
- use the +magnification glass
in
the top menu
to zoom to the
central city
Calculate New Variables
In the
CensusCD + Maps program, calculate the percent for each racial category
of the total population
- click on the Calculator in
the top right-hand
corner at the
top of the menu
- create a Formula:
e.g., PopBlack/TotPop90*100 (where
/ = divide; * = multiple; and 100 results in %) results in percent Black
population
e.g.,
PopHispa/TotPop90*100 results in percent Hispanic
population
[If you want to add several numbers together and
calculate a percentage, use this formula format:
((2+3)/(2+3+5+6))*100.
Where (2+3) are two
variables
added together, e.g., Asians and Native Americans, and (2+3+5+6) is the total
of all the same variables, e.g., Asians, Native Americans, Blacks, and Whites.]
- replace the default label Formula1 with a new label, such as % Black
-- this will appear in the printed legend!
Map
Class Intervals and Shading
In
the CensusCD + Maps program, the extreme right-hand menu consists
of
- Area: tract#
- Record: variable names, short
and
long
- Stat: class intervals for map
--
select
Equal Ranges and
only four class intervals. Think about the range of values: type
different percentages and hit
Enter
for each of the class intervals you want: such as 3, 5, 10, 20, 50,
75, etc.
You want to create
maps with the highest class interval showing geographically concentrated
areas. The highest class interval will vary a great deal (from 100 or
85%
to 6 or 4%) between the racial groups that you are mapping.
Be sure
that
the class
intervals result in grouping areas together with the largest numbers
to the lowest numbers. In other
words, the bars should have a step-like pattern for all or at least
for most of the variable mapped.
Here are two examples:
1)
In Graph 1, the
blue
bar
(891) has fewer tracts than the red bar (1220)
but more than
the
green
bar (665) and so
on.
2) In Graph 2, the blue
bar
(211) has fewer tracts than the red bar(169) but
more than the
green
bar (658); but since the green (lowest class interval)
areas (3923) contain
almost none (to
< 1) of the variable mapped, this green bar
is the
largest (3023).
|
Graph
1 |
Graph 2 |
|
|
| All tracts have some percent of the variable mapped. This is a common pattern for large groups,
such as Whites
and Blacks.
| Most of the tracts (3923) contain very little of the variable
mapped. This a common pattern for small groups, such as Asians,
Indians, and Blacks in some cities.
|
If you print in black and white, be sure that you click
on each of the colors and select the ones YOU want. The highest values
should be black and the lowest values should be white; all the values
in-between should be appropriate greys!
- Log: background info
In the CensusCD + Maps program, the highest values should be set
to black; then dark grey, light grey, and the lowest values to white.
Information
on a Particular Census
Tract
In the CensusCD + Maps program, information on a
particular census tract can be acquired by
- clickon the ?I
(Info
Cursor) icon on the map menu at the top -- click twice on the same area
to undo this function
or
- click on the the right-hand
mouse button which results in a menu
showing
Record: all data
for the clicked
on tract
Polygon: tract# and
only
the value
of the variable mapped
Click on Log to see the
values
for each
of the areas you clicked on. This is a great way to see the different values
between areas and what numbers you might want to use for class intervals.
In the CensusCD + Maps program, the
Log (section
D
above)
can be edited to show only the lines you want.
Print
Map
- Before you print, make sure that each map is as large as
possible without excluding important areas for a particular racial group.
In other words, the maps of the racial minorities will be zoomed in far more
than the white racial group map, which will be zoomed out.
- Under View, select Grey Scale and undo
Water.
- In the CensusCD + Maps program,
under File, select Print or click on
the
Print icon in the top menu; and
fill
in
the Text and Subtext lines, both appear
on the printed map, and under Orientation select Landscape and Legend
Include
and/or Overlap, Left or Right side of the
page.
[If
you can NOT print directly from the Census+Maps software, copy
the
map by using the Print Screen key (top row, on the right-hand end
of the keyboard) and then paste it into WORD. Be sure that you select
Landscape Mode in the print mode. Add a title and you are done! If
you know how to use a PAINT program, paste the screen dump into this program
and then select only the map and then the legend; deleting all the other
stuff.]
- Be sure to make well-designed maps, which include
I. a
comprehensive title which includes usually three elements:
* the scale of the map, such as particular metro area: e.g.,
". . . Chicago";
* variable mapped: e.g., "Percent of Blacks;"
* mapping unit of the data, in this case, "by tract."
A complete map title would, therefore, be " Percent of Blacks in
Chicago, by Tract."
II. the legend must indicate what the numbers
are, e.g., percent in this case, and
III. the source for all
these data are the 1990 U.S. Census, which you must add by hand, or in
a WORD or PAINT program, at the bottom
of the map, if you print directly from the mapping software!
- You might also make an outline map without data showing (select
the 1 category option) to show the whole metropolitan area with an appropriate
title. You could
add in WORD or in PAINT the names of the cities that make-up the metropolitan
area and where the main CBD (central business district) is located and any
other physical and cultural features that you think would help the map reader
locate the various concentrations.
Or open WORD, select a new file, type a preliminary
map title,
and hit return.
In the CensusCD + Maps program save the map under
Edit, Copy Map to the Clipboard, and
paste
into the open WORD file and then go
back to the CensusCD + Maps program and save the legend under
Edit>,
Copy Statistics to Clipboard, and paste it into the same WORD file.
Arrange the map and legend appropriately and add text (best done by using
the DRAW menu in WORD), such as the title and data source.

Final Project
Create one more map that YOU think correlates (spatially matches)
with the dominant racial groups in the city you mapped. As a bare
minimum, submit a hard copy of
each of the six maps (5 racial groups & 1 other relevant map)
for your metropolitan area, include a map title,
legend, and source.
If you like, use the subtitle box to add
your name. Otherwise,
place your name in the top right-hand corner of the first map. Order
the maps to reflect the rank (largest group, first) of the racial groups
in the city you mapped! Staple
your project in the upper left-hand corner.

City Street Map
You might want to look
at a street map of the city you selected either or both of these two
sources:
A) Go to the
MapQuest web site and
click
on Maps, and on the menu that appears
1) select the city from
the list provided (under Quick Maps, in the right-hand menu) or
type the name of the city yourself (under Map Search, in the left-hand
menu);
2) when the city map appears, click on large map (in the
right-hand menu);
3) when the city map appears, zoom in and use
the compass (in the left-hand menu) to go where you want in the
city.
B) Go to the
Topozone web site to see a
topographic map of your city. Type the name of your city and select the scale
that you want.
Now that you know how to create detailed census-based maps,
use your new
skill whenever you go on a trip. Create maps at different scales,
i.e., county,
census tract, and block group, for various characteristics, such as income,
family strutucture, housing, ethnicity and race, etc. With these maps you
will know the places you visit before you get there and then you will be
able to know where to go to see what you are interested in.
Geography
is about knowing and enjoying the people and their cultures in particular places!