TIGERZIP 2007
Introduction
The TIGER/ZIP File is created
by matching the information on the Census Bureau's TIGER File to the United
States Postal Service's ZIP+4 Product. The resulting file contains over 33
million data records from more than 27,000 5-digit ZIP Codes. The records
relate ZIP Codes to state, county, Standard Metropolitan Statistical Areas
(SMSA) codes, tract number, block number, and geographic coordinate
information. Coverage of the file is limited to the address ranges in ZIP+4
Product that could be successfully matched to the address ranges in the Census
Bureau's TIGER File. The file also includes data collected by the USPS using
Global Positioning System (GPS) technology.
While there has been a
careful attempt to match the address data in these files to create this
product, the United States Postal Service makes no representations or
warranties, expressed or implied, as to the accuracy, merchantability, fitness
for any particular purpose, or otherwise with respect to the TIGER/ZIP product,
nor shall the United States Postal Service be liable for any special,
incidental, or consequential damages, even if it has been, or is hereafter,
advised of the possibility of such damages that may result from the usage of
the data contained in the TIGER/ZIP product.
File
Descriptions
TIGER.DAT File
The TIGER.DAT file is used
to match the state code assigned by the Census Bureau to correct the state
abbreviation. It also matches the county code to its corresponding county name.
The State Code and County Code fields can be found in the data records.
Table 1. TIGERDAT File
Record Layout
|
Field Number |
Field Description |
Logical Length |
Relative Position From |
Relative Position Thru |
|
01 |
State
Code |
02 |
01 |
02 |
|
02 |
State
Abbrev |
02 |
03 |
04 |
|
03 |
County
Code |
03 |
05 |
07 |
|
04 |
County
Name |
25 |
08 |
32 |
|
05 |
CRLF |
02 |
33 |
34 |
Table 2. Copyright Record
Layout
|
Field Number |
Field Description |
Logical Length |
Relative Position From |
Relative Position Thru |
|
01 |
Filler |
05 |
01 |
05 |
|
02 |
File
Version Year |
04 |
06 |
09 |
|
03 |
File
Version Month |
02 |
10 |
11 |
|
04 |
Copyright
Symbol |
16 |
12 |
27 |
|
05 |
Filler |
59 |
28 |
86 |
|
06 |
CRLF |
02 |
87 |
88 |
Table 3. Data Records
|
Field Number |
Field Description |
Logical Length |
Relative Position From |
Relative Position Thru |
|
01 |
ZIP Code |
05 |
01 |
05 |
|
02 |
ZIP
Add-On |
04 |
06 |
09 |
|
03 |
TLID |
10 |
10 |
19 |
|
04 |
Carrier
Route |
04 |
20 |
23 |
|
05 |
State
Code |
02 |
24 |
25 |
|
06 |
County
Code |
03 |
26 |
28 |
|
07 |
RL Flag |
01 |
29 |
29 |
|
08 |
Census
Tract No # |
06 |
30 |
35 |
|
09 |
Census
Block No # |
04 |
36 |
39 |
|
10 |
From
Latitude |
09 |
40 |
48 |
|
11 |
From
Longitude |
10 |
49 |
58 |
|
12 |
To
Latitude |
09 |
59 |
67 |
|
13 |
To
Longitude |
10 |
68 |
77 |
|
14 |
PMSA |
04 |
78 |
81 |
|
15 |
CMSA |
04 |
82 |
85 |
|
16 |
Mult.
Match Indicator |
01 |
86 |
86 |
|
17 |
CRLF |
02 |
87 |
88 |
Data Element Definitions
ZIP+4 Code
ZIP: A 5-digit code that identifies a specific
geographic delivery area. ZIP Codes can represent an area within a state, an
area that crosses state boundaries (unusual condition), or a single building or
company that has a very high mail volume. "ZIP" is an acronym for
Zone Improvement Plan.
+4: Describes the last four positions
of a ZIP+4 Code. Most delivery addresses are assigned a single ZIP+4 Code.
However, large companies may be given a range of ZIP+4 Codes that can be used
to route mail to a specific department.
TLID
Tiger Line Identification
(TLID) is a universal number associated with Census Bureau products.
Carrier Route
Carrier identification code
or number for a given delivery route or PO box presentation.
State Code
A 2-digit code assigned by
the Census Bureau.
County Code
The 3-digit Federal
Information Processing Standard (FIPS) code assigned to counties and county
equivalents in sequence within each state.
RL Flag
Right-Left Flag (RL Flag)
signifies the side of the street upon which the +4 code resides. (e.g., R =
right, L = left, and B = both sides that are possible at times).
Census Tract Number
Small, locally delineated
statistical areas within selected counties, generally having stable boundaries
and, when first established by local communities, designed to have relatively
homogeneous demographic characteristics.
Census Block Number
Blocks are numbered
uniquely within each census tract with a 3-character number that identifies the
collection block used in the census and a character block suffix. This
character block suffix is often blank.
From Latitude
The north/south measurement
indicating the beginning point of the address.
From Longitude
The east/west measurement
indicating the beginning, point of the address.
To Latitude
A north/south measurement
indicating the ending point of the address.
To Longitude
The east/west measurement
indicating the ending point of the address.
Primary Metropolitan
Statistical Area (PMSA)
A 4-digit code assigned to
areas that comprise one or more counties, including, a major population nucleus
and nearby communities that have a high degree of interaction.
Consolidated
Metropolitan Statistical Area (CMSA)
A 4-digit code assigned to
areas that consist of primary metropolitan statistical areas.
Multiple Match Indicator
The ZIP+4 Code matched with
more than one census block/latitude/longitude is identified with a multiple
match indicator, which would be "Y" if the condition occurred
Multiple matches can occur
because
1. The Census Bureau reported
the same block with different latitude/longitude,
2. The ZIP+4 block face was
in more than one census block due to coding convention differences between the
Census Bureau and the United States Postal Service, or;
3. Ambiguous data exists in
either the Census TIGER/ZIP file, ZIP+4, or both.
CRLF
This field only appears in
the ".TXT" files on the CD-ROM and is used to break the records.
Download - TigerZip 2000 - Samples
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