Not specified
1990
City locations for all places in the TIGER files
digital data
Reston, VA
U.S. Geological Survey
http://water.usgs.gov/lookup/getspatial?places
City locations for all places in the TIGER files; this file
was extracted from dbf files posted on the internet
by the Bureau of the Census. This is basically a gazeteer
of place names used in the 1990 census, with population and
locations included.
City, places, population, 1990
This coverage should be useful for labeling city locations
on national or local maps.
Publication graphics where point locations of cities are needed.
The main use of this data in plotting would be to select
points by population and label those points with
the city name. For example, in ARCPLOT:
RESELECT PLACES POINT MAPEX
RESELECT PLACES POINT POP100 gt 50000
POINTS PLACES
POINTTEXT PLACES NAME
Procedures_Used:
The file was retrieved from
<URL:file://ftp.census.gov/pub/tiger/pub/tiger/pts/geoex.zip>
and the resulting DBF files were read into ARC/INFO. The following
documentation was provided and is included here.
> geoex.zip is a compressed file containing 51 GEOEXxx.DBF files
> where xx represents a state abbreviation.
> Download the file to your hard disk and use PKUNZIP to uncompress.
>
> File structure
> Field Field Name Type Width Description
> 1 SUMLEV Character 3 Summary level
> 2 STATEFP Character 2 State code
> 3 CNTY Character 3 County code
> 4 COUSUBFP Character 5 County Subdivision code
> 5 PLACEFP Character 5 Place code
> 6 STUSAB Character 2 State abbreviation
> 7 ANRC Character 2 Alaska Native Regional Corp. code
> 8 AIANAFP Character 5 American Indian/Alaska Native Area
> 9 AREALAND Numeric 10 Land area (sq. km. /1,000)
> 10 AREAWAT Numeric 10 Water area (sq. km. /1,000)
> 11 ANPSADPI Character 66 Area name
> 12 HU100 Numeric 9 Housing units
> 13 POP100 Numeric 9 Population
> 14 INTPTLAT Character 9 Latitude (degrees/1,000,000)
> 15 INTPTLNG Character 10 Longitude (degrees/1,000,000)
> Total record length 150
This file was then read into INFO using the DBASEINFO command.
Some of the state data files generated error reports, but no
data seem to be missing in the final product. (see notes)
The INFO files were then aggregated and lat and long were
dumped to a file using TABLES UNLOAD.
The resultant file was then reformatted into
ARC GENERATE format, and GENERATE was used to make point
coverage. The attributes were then added using JOINITEM, and
the data were PROJECTed into standard CONUS Albers coordinates.
More detail is included (with some AMLs and awk scripts) under
"notes" below.
Revisions:
1.0 10/27/95 Generated this coverage from scratch, keeping
all attributes.
Reviews_Applied_to_Data:
*none*
Related_Spatial_and_Tabular_Data_Sets:
*none*
Other_References_Cited:
U.S. Bureau of the Census, Tiger files. PL 90-171.
Notes:
Here are my working notes on creating the cover:
-----
Check of archive contents:
% unzip -v geoex.zip
Length Method Size Ratio Date Time CRC-32 Name ("^" ==> case
------ ------ ---- ----- ---- ---- ------ ---- conversion)
48640 Deflate 11318 77% 12-09-91 20:47 3997e909 ^geoexak.dbf
72192 Deflate 15990 78% 12-09-91 20:47 f9857e69 ^geoexal.dbf
76288 Deflate 16276 79% 12-09-91 20:48 11a6f3ed ^geoexar.dbf
27648 Deflate 6552 76% 12-09-91 20:48 2ac88696 ^geoexaz.dbf
133120 Deflate 30571 77% 12-09-91 20:49 342ce7bb ^geoexca.dbf
47616 Deflate 10568 78% 12-09-91 20:49 71a415bc ^geoexco.dbf
18432 Deflate 4476 76% 12-09-91 20:49 bdd08ab4 ^geoexct.dbf
967 Deflate 274 72% 12-09-91 20:49 5f88550d ^geoexdc.dbf
11776 Deflate 2747 77% 12-09-91 20:49 426e11ff ^geoexde.dbf
114688 Deflate 26126 77% 12-09-91 20:49 143fe005 ^geoexfl.dbf
91136 Deflate 19968 78% 12-09-91 20:50 a1bddde5 ^geoexga.dbf
19456 Deflate 4472 77% 12-09-91 20:50 908915df ^geoexhi.dbf
144896 Deflate 29376 80% 12-09-91 20:51 758ec1ed ^geoexia.dbf
31232 Deflate 6826 78% 12-09-91 20:51 31f0828a ^geoexid.dbf
198144 Deflate 41902 79% 12-09-91 20:52 f43b3fbd ^geoexil.dbf
90112 Deflate 19350 79% 12-09-91 20:53 6fee585b ^geoexin.dbf
96256 Deflate 19510 80% 12-09-91 20:53 130786a2 ^geoexks.dbf
71680 Deflate 15508 78% 12-09-91 20:54 01fa2b91 ^geoexky.dbf
59904 Deflate 13529 77% 12-09-91 20:54 ce0aa4f0 ^geoexla.dbf
35840 Deflate 8387 77% 12-09-91 20:54 ffc6eb76 ^geoexma.dbf
50688 Deflate 11496 77% 12-09-91 20:55 8284e8c5 ^geoexmd.dbf
16896 Deflate 4162 75% 12-09-91 20:55 6142fcae ^geoexme.dbf
94208 Deflate 20617 78% 12-09-91 20:56 8bfc3950 ^geoexmi.dbf
131072 Deflate 27800 79% 12-09-91 20:57 c1679bc0 ^geoexmn.dbf
145920 Deflate 30704 79% 12-09-91 20:58 2e77a9e5 ^geoexmo.dbf
49664 Deflate 11029 78% 12-09-91 20:58 00a42036 ^geoexms.dbf
25088 Deflate 5770 77% 12-09-91 20:59 2d7a39aa ^geoexmt.dbf
93184 Deflate 20253 78% 12-09-91 20:59 89809cae ^geoexnc.dbf
57344 Deflate 11715 80% 12-09-91 21:00 e3ec6e99 ^geoexnd.dbf
350208 Deflate 73484 79% 12-09-91 21:01 cdb4cd42 ^geoexne.dbf
9728 Deflate 2438 75% 12-09-91 21:02 b2909bd1 ^geoexnh.dbf
76288 Deflate 17180 77% 12-09-91 21:02 7841a85b ^geoexnj.dbf
78336 Deflate 16876 78% 12-09-91 21:02 b10c9793 ^geoexnm.dbf
29184 Deflate 5607 81% 12-09-91 21:02 3c75964f ^geoexnv.dbf
146944 Deflate 32698 78% 12-09-91 21:03 e6deb045 ^geoexny.dbf
159744 Deflate 34037 79% 12-09-91 21:04 f295da4c ^geoexoh.dbf
91136 Deflate 18931 79% 12-09-91 21:04 71f5a58e ^geoexok.dbf
43520 Deflate 9662 78% 12-09-91 21:05 54233d7b ^geoexor.dbf
196608 Deflate 41605 79% 12-09-91 21:06 2564e6cd ^geoexpa.dbf
4608 Deflate 1294 72% 12-09-91 21:06 02497b95 ^geoexri.dbf
52224 Deflate 11644 78% 12-09-91 21:06 4f78fd50 ^geoexsc.dbf
51200 Deflate 10762 79% 12-09-91 21:07 c66d14a5 ^geoexsd.dbf
57344 Deflate 12648 78% 12-09-91 21:07 621a8ca9 ^geoextn.dbf
193536 Deflate 41915 78% 12-09-91 21:08 9d06d2bc ^geoextx.dbf
39424 Deflate 8644 78% 12-09-91 21:08 df971885 ^geoexut.dbf
52736 Deflate 12001 77% 12-09-91 21:09 0bd7715a ^geoexva.dbf
11264 Deflate 2769 75% 12-09-91 21:09 6294fa92 ^geoexvt.dbf
65024 Deflate 14994 77% 12-09-91 21:09 95e54143 ^geoexwa.dbf
94208 Deflate 20495 78% 12-09-91 21:10 de38eb45 ^geoexwi.dbf
42496 Deflate 9514 78% 12-09-91 21:10 be9a0f79 ^geoexwv.dbf
17408 Deflate 3928 77% 12-09-91 21:10 6c4693dd ^geoexwy.dbf
------ ------ --- -------
3917255 850398 78% 51
Unzip was then run, and the following AML was run:
/* munch.aml
&s n [filelist *.dbf dbf.lst -file]
&s ch [open dbf.lst st -r ]
&do J := 1 &to %n%
&s ff [read %ch% st]
dbaseinfo %ff% [before %ff% .dbf]
&end
&s st [close %ch%]
tables
&s ch [open dbf.lst st -r ]
&if [exists xxx -file] &then &s st [delete xxx -file]
&do J := 1 &to %n%
&s ff [read %ch% st]
sel [before %ff% .dbf]
save xxx
&end
&s st [close %ch%]
copy geoexak big nodata
sel big
get xxx
sel big
quit
&return
The following errors message was reported for the states:
AK AL CA CO CT DC DE FL GA IA IN KS LA MA MD ME MN MO MS NC NE NH NJ
NM OH OK PA SD TN TX UT VT WA
"Records transfered is incomplete according to the header of geoex__.dbf"
Now I had an INFO table:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED?
1 SUMLEV 3 3 C - -
4 STATEFP 2 2 C - -
6 CNTY 3 3 C - -
9 COUSUBFP 5 5 C - -
14 PLACEFP 5 5 C - -
19 STUSAB 2 2 C - -
21 ANRC 2 2 C - -
23 AIANAFP 5 5 C - -
28 AREALAND 8 11 F 0 -
36 AREAWAT 8 11 F 0 -
44 ANPSADPI 66 66 C - -
110 HU100 8 10 F 0 -
118 POP100 8 10 F 0 -
126 INTPTLAT 9 9 C - -
135 INTPTLNG 10 10 C - -
This was unloaded in TABLES and converted to GENERATE format:
Tables: UNLOAD xxx INTPTLNG INTPTLAT DELIMITED INIT
This file xxx looked like:
'-176640278','+51842900'
'-154217551','+56977320'
'-161403575','+60871740'
'-161192264','+60885659'
'-165786036','+54136299'
...
It was then reformatted using AWK
<xxx sed -e "s.'..g" -e "s.+..g" \
| awk 'BEGIN {FS=","}' \
'{printf "%8d\ %10f\ %10f\n", NR, $1/1e6, $2/1e6}' \
.FALSE.
Now we had
1 -176.640278 51.842900
2 -154.217551 56.977320
3 -161.403575 60.871740
(...)
END
Arc: |> generate places <|
Arc: (thread0001, tty/12) generate places
Copyright (C) 1982-1995 Environmental Systems Research Institute, Inc.
All rights reserved.
GENERATE Version 7.0.3 (Mon Mar 13 22:21:55 PST 1995)
Generate: |> input xxx.gen <|
Generate: |> points <|
Creating points with coordinates loaded from xxx.gen
Generate: |> q <|
Externalling BND and TIC...
Arc: |> build places point <|
Building points...
Arc: |> joinitem places.pat big places.pat places-id places-id link <|
Joining places.pat and big to create places.pat
Arc: |> rename places placesdd <|
And projected....
Arc: |> project cover placesdd places <|
Please define the input and output map projections.
Use INPUT to define the input projection, OUTPUT
to define the output projection, and END to finish.
Project: |> input <|
Project: (thread0001, tty/28) input
Project: |> projection geographic;units dd;param <|
Project: (thread0001, tty/29) projection geographic
Project: (thread0001, tty/29) units dd
Project: (thread0001, tty/29) param
Project: |> output <|
Project: (thread0001, tty/30) output
Project: |> &r /vocgis/lib/prj/albers.prj <|
Project: (thread0001, tty/31) &r /vocgis/lib/prj/albers.prj
Project: (thread0001, albers.prj/1) PROJECTION ALBERS
Project: (thread0001, albers.prj/2) UNITS METERS
Project: (thread0001, albers.prj/3) SPHEROID CLARKE1866
Project: (thread0001, albers.prj/4) XSHIFT 0
Project: (thread0001, albers.prj/5) YSHIFT 0
Project: (thread0001, albers.prj/6) PARAMETERS
1st standard parallel [ 0 0 0.000 ]: (thread000
2nd standard parallel [ 0 0 0.000 ]: (thread000
central meridian [ 0 0 0.000 ]: (thread000
latitude of projection's origin [ 0 0 0.000 ]: (thread000
false easting (meters) [ 0.00000 ]: (thread000
false northing (meters) [ 0.00000 ]: (thread000
Project: |> end <|
Project: (thread0001, tty/32) end
Arc: |> build places point <|
Building points...
Finally, PULLITEMS was used to reorder the PAT so that the full
7-digit place could be RE-defined as STPLACEFP 7 7 C. PLACEFP
by itself is only unique for each state.
0000
ground condition
Unknown
-150.54268969
-44.61576228
78.42789696
8.12988158
None
Populated place locations from TIGER files (from Census FTP site)
inlandWaters
None
All USA, incl AK,HI
None
None
None
None
None
The scale of this data is unknown, although presumably they are
centroids of place locations in the TIGER data set (which has a
nominal 1:100,000 scale). The accuracy of the centroid depends on
the accuracy of the TIGER data.
None
Unclassified
None
dgux, 5.4R3.10, AViiON UNIX, ARC/INFO version 7.0.4
US Bureau of the Cen
TIGER data, US PL 90-171
Posted at census FTP site
ftp://ftp.census.gov/pub/tiger/pts/geoex.zip
See Entity_Attribute_Information
See Explanation
Attribute accuracy is described, where present, with each
attribute defined in the Entity and Attribute Section.
Point features present.
unknown
Resolution as reported
Unspecified
0000
Unspecified
unknown
Unspecified
0000
Unspecified
Unspecified
Unspecified
MNEGRI COPY /GIS2/MNEGRI/MGN70WS/PLACES /DSDL1/CUSA/TILES/CUSA/PLACES
None
19960313
1143
None
MNEGRI EXPORT COVER PLACES PLACES.E00
None
19960313
1401
None
MNEGRI ARCSDTS PLACES PLACES.TAR.GZ PREF
None
19960313
1443
None
Point
Point
25692
String
0
GT-polygon composed of chains
0
Albers Conical Equal Area
29.5
45.5
-96
23
0.0
0.0
coordinate pair
1.0
1.0
METERS
Unknown
Clarke 1866
6378206.4
294.98
PLACES.PAT
Place centroid attributes
Bureau of the Census, FTP data file
-
Place centroid attributes
Bureau of the Census, FTP data file
-
unspecified
unspecified
AREA
Degenerate area of point
Assigned
0
unspecified
unspecified
PERIMETER
Degenerate perimeter of point
Assigned
0
unspecified
unspecified
PLACES#
Internal feature number
Computed
Sequential unique positive integer
unspecified
unspecified
PLACES-ID
User-assigned feature number
User-defined
Integer
unspecified
unspecified
SUMLEV
Summary level
Census files
CNTY
County code
census file
3 digit number
unspecified
unspecified
COUSUBFP
County subdivision code
Census
STATEFP
STATE 2-digit FIPS code
Census file derived from TIGER
2-digit integer, leading zero included
unspecified
unspecified
PLACEFP
5-digit fips code
Census file generated from TIGER
5-digit integer
unspecified
unspecified
STUSAB
US State postal abbrevian
Census file
2-character postal abbrev for 50 states + territories
unspecified
unspecified
ANRC
Alaska Native Regional Corp. code
Census
AIANAFP
American Indian/Alaska Native Area code
Census
AREALAND
Land area, sq. mi
Census file
AREAWAT
Water area (square miles)
Census file
real value
unspecified
unspecified
ANPSADPI
Place name
Census file
Character (upper and lower case)
unspecified
unspecified
HU100
Housing units (100 percent count)
Census file
real number
unspecified
unspecified
POP100
1990 population (100 percent count)
Census file
real number
unspecified
unspecified
INTPTLAT
Latitude centroid, degrees / 1,000,000
Census file
character rep of decimal degree number
unspecified
unspecified
INTPTLNG
Longitude in decimal degrees / 1,000,000
Census file
character rep of integer
unspecified
unspecified
STPLACEFP
STATE/FIPS code to uniquely identify place
Redefined in INFO database from STATEFP and PLACEFP items
integer with leading zero included
unspecified
unspecified
The coverage attributes in the PAT are from the file retrieved from
the internet. Each city is uniquely identified by a code
made up of STATEFP and PLACEFP together. PLACEFP is not unique.
Not Available
U.S. Geological Survey
Ask USGS - Water Webserver Team
mailing
445 National Center
Reston
VA
20192
1-888-275-8747 (1-888-ASK-USGS)
http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+places
Although this data set has been used by the U.S. Geological
Survey, U.S. Department of the Interior, no warranty expressed or
implied is made by the U.S. Geological Survey as to the accuracy
of the data and related materials. The act of distribution shall not
constitute any such warranty, and no responsibility is assumed by
the U.S. Geological Survey in the use of this data, software, or
related materials.
Any use of trade, product, or firm names is for descriptive
purposes only and does not imply endorsement by the U.S.
Government.
Export
Full coverage
zipped
1
http://water.usgs.gov/GIS/dsdl/places.e00.gz
SDTS
Full coverage
zipped
1
http://water.usgs.gov/GIS/dsdl/places.sdts.tgz
None. This dataset is provided by USGS as a public service.
20041108
U.S. Geological Survey
Ask USGS -- Water Webserver Team
mailing
445 National Center
Reston
VA
20192
1-888-275-8747 (1-888-ASK-USGS)
http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+places
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998