Examining Local Demographics with GIS - Answer Key

Author:  Joseph J. Kerski, USGS, jjkerski@usgs.gov, 303-202-4315 

1)  [ in the  lkA files ]

2)  [ in the grp files ]

3) [ in the sf1grp files . This data is for the entire state of South Dakota ]

4)  [ 2000 ]

5)    [ Open up the legend editor by double clicking on the roads legend.

         Enter legend type = unique values & values field = cfcc2.

         Then “Apply”. ] 

6)   [ A21 and A41 ]

7)   [ name, length, from node, to node ]

8)     [ The roads table contains one record for every  line segment in Todd county ] 

9)   [ 7 records ]

10)  [ 688 records ]

11)  [ longer ]

12)  [ This table census data for the entire state ]

13)   [ stfid ]

14)   [ Fields from matching rows in the sf1 file are appended onto matching rows in the grp file ]

15)  [ There are 7 records in the grp file:

             Tract 940100 with block groups 1,2,3  and

             Tract 940200 with block groups 1,2,3,4  ]

16)  [ By visually examining the new block group table ] 

17)   [ In the legend editor:

        legend type = unique values & value field = Age_5_17 ]

 18)  [ Tract 940100 blkgrp 1 Just NE of center ]

19)   [ 591 ]

20)   [ Blkgrp 4, tract 940200  Along NE border ]

21)   [ Blkgrp 4, tract 940200 ]

22)   [ Blkgrp 4, tract 940200 ]

23)   [ 33.7 – 34.1 % ] 

24)    [ Could be blkgrp 4 tract 940200 or

      blkgrp 1 tract 940100 ]

  25)    [ The first one had the highest percentage of age 5- 17 but

            The second one has the larger number of age 5 – 17 ]

26)     [ The size property determined the size of the pie chart on the map]

       [ It is quite obvious that the dots in some blocks are much

         more dense than others ]

27)  [ The dot map displays density better. The graduated color maps

         show relative totals better, and the pie charts show percentages

         better ]

28)   [ See above ]

29)   [ Blkgrp 1  tract 940100 ]

30)   [ 1646 ]

31)   [ 88.6 – 93.8 % ]

32)   [ 48.6 % ]

33)   [ There is a higher student-age population in the areas of higher

       Native American populations ] 

34)  [ Perhaps Native Americans tend to have larger families ]

35)    [ There are 7747 Native Americans, 1138 whites, 8 blacks, and 13

       Asians. The white population lives mostly in the Eastern half ]

36)  [ 2 ]

37)  [ Ameri_es > 1200 and Age_5_17 > 400 ]

38)  [ blkgrp 1 tract 940100 & blkgrp2 tract 940200 ]

        [ North of central ]

39)   [ 1 ]

40)   [ Ameri_es > 1500 and Age_5_17 > 500 ]

41)    [ Tract 940100 Blk 1  - North Central ]

42)  [ faddl – from address left   taddl – to address left

    faddr – from address right  taddr – to address right ]

43)   [ A black dot appears on the map at this address location ] 

44)   [ North West Mission ]

45)   [ Todd St , Taft St , 1^st St , and Roosevelt Ave ]

46)  [ South ]

47)  [ BIA Road 1 to US Hwy 18 East, to North on Taft St. to Right on Todd ]

48)  [ Layout]

49)  [ A wealth of US Census data is available by county to analyze population

        distribution by ethnic group, gender, age, family size, and other

         factors ]

50) [ How to use Geocoding to find address locations on a map ]

     [ How to join tables with a common data field ]

     [ How to load census data from the internet into an ArcView project ]  

Back to SGU GIS Course Home