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Delta Study Mapper
The initial map
shows the population below poverty according to
the 2000 census.
As you zoom in
from the regional census tract-level map, block groups
display at 50 miles, and streets at 5 miles.
Zoom out to view a nationwide county map.
Additional maps include 2000 census data on
ethnicity, education, and income. Change maps
by clicking the drop-down menu under "Compare
Maps" on the left.
To maximize the viewable area, toggle off the
history folder,
then select the F11 key. Map links can be
e-mailed or bookmarked for future reference.
Use the arrow buttons on your browser to
compare previously viewed maps.
Click the HELP icon for additional assistance.
NOT COMPATIBLE WITH FIREFOX 1.5 (click for
details).
Delta Study Area
(national scale map-- zoomable to street-level)
Google-FairData Base Map (start with a
Google map interface)
***
Delta Historical Map (see African-American Demographics 1950-2000
for details)
***
In 2006 we
added a link to newly released
DataPlace for more detailed "build your
own" analysis -- (no block groups,
tract-level and higher). Select the field
DataPlace_Link from the INFO tool pop-up
window for a census tract in the
FairData map and you'll
see that tract in a new DataPlace area
overview
window, with links to thematic maps, and
exceptional charts and
tables across a wide range of
datasets. (Click on the links under "Browse by Topic" in the
right corner beneath the
DataPlace map to quickly change the theme to
another indicator.)
Social Explorer is another excellent source
for tract-level and higher maps and tables from
the 1940 census through the 2000 census. (In many
instances, the maps are superior
to DataPlace maps because more meaningful
thematic breakpoints are used.)
On the
FairData map, tract lines generally display as
faint white lines overlaying the component block
group boundaries when you check the box "Census
Tract High", then select Redraw. To zoom to the
block group level components of a tract you have
identified in the DataPlace map: (1) copy the
tract number (for example,
51550-0201 displayed via the question mark
button on the DataPlace map ) into the block
group
search field on the popup form accessed with FairData's
FIND button (2) remove the hyphen (and the
decimal point, if there is one) and click "Find".
A table with data for the component block groups
will display below the map.
See also:
Map 1 -- Population Below Poverty
At a scale of about 5
miles, block group population counts for
persons living in poverty are displayed in
purple boxes.
Source:
Census 2000 Summary File 3 (SF 3) Sample
Data
Map 2 -- Population Under 18 Below Poverty
At a scale of about 5
miles, block group population counts for
children living in poverty are displayed in
purple boxes.
Source:
Census 2000 Summary File 3 (SF 3) Sample
Data
(Note: Figures for persons under 18 for whom
poverty status is determined differ slightly
from published figures on "related children
under 18.")
County Rankings are out of 3,121 counties containing
200 or more persons under 18.(1= worst)
Download county and city poverty data from
Children's' Defense Fund
Download nationwide block group poverty data from FairData
(Maptitude-compatible, field labels
are in .dcc file) (zipped file 2 megabytes)
Map 3 -- Female Householder (single-parent) with own children
At a scale of about 5
miles, block group female single
parent household counts are displayed in purple
boxes.
Source:
Census 2000 Summary File 1 (SF 1) 100-Percent
Data
Map 4 -- Median Household Income (1999)
At a scale of about 5
miles, block group median household income is displayed
in purple boxes.
Source:
Census 2000 Summary File 3 (SF 3) Sample
Data
Map 5 -- Median Home Value (by census
tract)
At scales
below 10 miles, check the box "Census Tract
(High), then select Redraw. Median value
for owner-occupied houses by census tract
is displayed in purple boxes. Bar charts break
out the median value by race.
Source: Census 2000 Summary
File 3 (SF 3) Sample Data
Map 6 -- Housing Tenure
Source: Census 2000 Summary File 1 (SF 1)
100-Percent Data
Map 7 -- Percent Black (single-race, all
ages)
Source:
Census 2000 Summary File 1 (SF 1) 100-Percent
Data
Map 8 -- Percent Latino (any race, all
ages)
Source:
Census 2000 Summary File 1 (SF 1) 100-Percent
Data
Map 9 -- Percent Asian (any race, all
ages)
Source:
Census 2000 Summary File 1 (SF 1) 100-Percent
Data
Map 10 -- Civilian Population 16-19, Not
Enrolled in School and No Degree
Source: Census 2000 Summary File 3 (SF 3)
Sample
Data
See Youth Educational Attainment
page for details
Map 11 -- Civilian Population 16-19, Not
Enrolled in School and Unemployed or Not in
Labor Force
Source: Census 2000 Summary File 3 (SF 3)
Sample
Data
See
Youth Educational Attainment
page for details
Map 12 -- 5-17 Limited
English-Speaking Ability (Spanish speakers only)
Source: Census 2000 Summary File 3 (SF 3)
Sample
Data
See ESL page for map details
Map 13 -- 18-64 Limited
English-Speaking Ability (Spanish speakers only)
Source: Census 2000 Summary File 3 (SF 3)
Sample
Data
See ESL page for map details
Download
nationwide block group Spanish language data from FairData
(Maptitude-compatible, field labels
are in .dcc file) (zipped file 2 megabytes)
Map 14 -- Under 19 Below 185%
Poverty Level (Free-Reduced Meal Eligible)
Source:
USDA and Census 2000 Summary File 3 (SF 3) Sample
Data
Includes Summer Food sites from 2001.
Note that unlike the other maps, this thematic
map subdivides the 40% to 60% range into 40% to
50% and 50% to 60% -- facilitating the
identification of potential Summer Food open site
areas (where at least 50 percent of school age children
are eligible for free or reduced price school meals).
At a scale of about 5
miles, counts for
the under 19 population below the 185% poverty level are displayed in
purple boxes.
The block group
level 185% poverty dataset can also be viewed via the
USDA Summer Food Map Machine.
Consistent with the USDA dataset and Map
Machine, students under 19 in group housing are
included in the 185% counts.
For additional details
and Summer Food
Site-level info (query with Info tool) use the
Summer Food Mapper
Map 15 -- Population Under 13 Below 185%
Poverty Level
Source: USDA and Census 2000 Summary File 3 (SF
3) Sample Data
Note that this thematic
map subdivides the 40% to 60% range into 40% to
50% and 50% to 60% -- facilitating the
identification of potential
area
eligibility sites for Child and Adult Care
Food Program sponsors ( where at least 50 percent of the under age
13 population is eligible for free or reduced price school
meals).
At a scale of about 5
miles, counts for
the under 13 population below the 185% poverty level are displayed in
purple boxes.
Map 16 -- Population Under 5 Below Poverty
Source:
Census 2000 Summary File 3 (SF 3) Sample
Data
At a scale of about 5
miles, block group population counts for
children under 5 living in poverty are displayed in
purple boxes.
Map 17 -- Percent Undercount
At a scale of about 5
miles, block group undercounted population
(positive numbers -- persons missed) or
overcounted population (negative numbers --
persons counted twice) is displayed
in purple boxes
Note: Undercount rates are calculated after
removing the group quarters population. The
Census Bureau did not adjust for this population
because it was excluded from the Accuracy and
Coverage Evaluation.
Source:
Statistically adjusted PL94-171 file and Census 2000 Summary File (SF
1)
Data
Map 18 -- Households without a
vehicle
At a scale of about 5
miles, block group counts of households without a
vehicle are displayed in purple boxes.
Source: Census 2000 Summary File 3 (SF 3)
Sample
Data
Map 19 -- Population 25 and over
without a high school degree
At a scale of about 5
miles, the block group-level population 25
and over without a high school diploma is played in purple boxes.
Source: Census 2000 Summary File 3 (SF 3)
Sample
Data
Map 20 -- Foreign Born Non-citizen
Population (any race or ethnicity, all ages)
At a scale of about 5
miles, the block group count of foreign born
non-citizens is displayed in purple boxes.
Percentage calculations are based on the total population. (all ages)
Source:
Census 2000 Summary File 3 (SF 3) Sample
Data
Map 21 -- Population Ages 15 to 24
At a scale of about 5
miles, the block group-level population age 15
to 24 is displayed in purple boxes.
Source: Census 2000 Summary File 1 (SF 1)
100-Percent Data
Map 22 -- Population in Student
Dorms
At a scale of about 5 miles,
block group population counts for students
living in college dorms are displayed in purple
boxes.
Source: Census 2000 Summary
File 1 (SF 1) 100-Percent Data (see
Group Quarters Mapper
for details)
Map 23 -- Population in Military
Quarters
At a scale of about 5 miles,
block group population counts for persons
living in military barracks or quarters are
displayed in purple boxes.
Source: Census 2000 Summary
File 1 (SF 1) 100-Percent Data (see
Group Quarters Mapper
for details)
Map 24 -- Population in Correctional
Facilities
At a scale of about 5 miles,
the block group population counts for persons
living in correctional facilities are displayed
in purple boxes.
Source: Census 2000 Summary
File 1 (SF 1) 100-Percent Data (see
Group Quarters Mapper
for details; see also
PrisonersoftheCensus.org)
Map 25 -- Population Ages 20 to 44 (as a
percentage of 18+ population)
At a scale of about 5 miles,
the block group-level population for ages 20 to
44 is displayed in purple boxes.
Source: Census 2000 Summary
File 1 (SF 1) 100-Percent Data
Map 26 -- Population Moved to Different
House since 1995 (as a percentage of 5+ pop.)
At a scale of about 5 miles,
the block group-level count for the population
over 5 years moved to a different house since
1995 is displayed in purple boxes.
Source: Census 2000 Summary File 3 (SF 3) Sample
Data
Map 27 -- Percent Native American (single-
race, all ages)
Source: Census 2000 Summary
File 1 (SF 1) 100-Percent Data
Map 28 -- Language Minority
(18+ non-English speakers who
do not speak English "very well")
This thematic map shows
voting age non-English speakers who do not
speak English "very well". This category
includes all non-English speakers 18 and over
who speak English "well", "not well", or "not at
all".
At a scale of about 5 miles ,
the number (by block group) of 18+ non-English
speaking persons who do not speak English "very
well" is displayed in purple boxes.
Note:
The language minority map is not directly
comparable to Maps 12 and 13. Those maps show
English proficiency by age for Spanish speakers
as a percentage of the Spanish-speaking
population, rather than as a percentage of the
overall voting age non-English speaking
population. The maps also employ a more
restrictive definition for limited English --
"speak English not well" or "not at all".
Some official definitions (for instance, Voting
Rights Act Sec. 203 language minority coverage)
extend the term "limited English" to include
persons who "speak English well". Under these
interpretations, just one category -- "Speak
English Very Well" -- defines persons who are
considered proficient in English.
Map 29 -- Age 65+ (as a percentage of 18+
population)
At a scale of about 5 miles,
the block group-level 65 and over population
is displayed in purple boxes.
Source: Census 2000 Summary
File 1 (SF 1) 100-Percent Data
Map 30 -- Population Ages 21-64 with a
disability (as a percentage of 21-64 population)
At a scale of about 5 miles,
the block group count of persons 21-64 with a
disability is displayed in purple boxes.
Source: Census 2000 Summary
File 3 (SF 3) Sample Data
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