|
|
| GeoCommunity Mailing List |
| |
| Mailing List Archives |
| Subject: | GISList: Census Data Questions |
| Date: |
12/26/2001 10:18:03 AM |
| From: |
Kahn, Helen |
|
|
Hi All -
this is not a strict GIS question, but I figure someone out there working
with census data can answer my queries.
Question 1: Is it possible to have blocks with zero (0) population?
Question 2: Why do population by race/ethnic origin percentages total less
than, or greater than 100%? Is this an issue of rounding? Or does it have
to do with people identifying themselves as more than one category, i.e.,
Black & Hispanic Origin?
Here's the background to my question:
I downloaded population by race data from FreeDemographics.Com. The tabular
data are reported as total population and then percentages of each race for
each block The categories are Whites, Blacks, American Indian,
Asian/Pacific Islander and Hispanic Origin. I am looking at an area in
Connecticut around a highway interchange, and I am looking at the block
level. I am using the 2000 Census Summary File 1. Several of the blocks in
this area report 0 for total population. In some of the blocks that do
report populations, the percentages of race/hispanic origin add up to 100
+/- 2%.
Any information would be appreciated.
thank you.
Helen
To unsubscribe, write to gislist-unsubscribe@geocomm.com
________________________________________________________________________
Setup a GeoCommunity Account and have access to FAST DataDownloads
and Premium Career Posting at a discounted rate!
https://www.geocomm.com/cgi-bin/accounts/login
On-line Archives available at
http://spatialnews.geocomm.com/community/lists/
|
|
Sponsored by:
For information
regarding
advertising rates
Click Here!
|
