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STATE BOUNDARIES (NAD83)
 Analyzing your
target market geographic data,
Census State boundaries in particular, is the key
to implementing a cost-effective marketing strategy. Use of geographic data at the
State level will help you improve target marketing, plot sales territories,
locate new customers and prospects or your competitors on the map, and identify untapped market opportunities.
This is a pure data file of the longitude and latitude points comprising the
year 2000 boundaries of each State and outlying areas. Bamberg-Handley,
Inc. has slightly thinned the files to permit faster plotting while maintaining
accuracy. Many points are used in complex areas and few in areas without
curves. We have converted each point to NAD83 to best reflect the actual shape
of the Earth.
The boundaries of all files end at shorelines. This is important to note
since the official boundaries of States and other polygons which border on
oceans or the Great Lakes legally end far out into the water and are not
suitable for mapping.
Every record in this file is 25 bytes long. A typical file would begin,
as follows:
O78 8
NVIRGIN ISLANDS
P -64.906218 18.410033
H -64.902709 18.412953
L -64.910346 18.406290
-64.904906 18.406290
-64.908935 18.406290
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The last two bytes of each line are a
carriage return / line feed. There are six record types:
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"O" means an Outside boundary. States consist only of "O" type data sets but
many other data types may also have interior boundaries. In this case, the "O"
is followed by the State Code "78", which is the FIPS designation for the Virgin
Islands. The number at the right of the "O" record is the number of points in
the described polygon.
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"N" for name records contains the name of the polygon defined by the
boundary, when applicable. When data type refers to an area without a name such
as a tract, the name record is vacant.
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"P" type records define an ideal "paint" or "fill" point used by
programmers.
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"H" is the highest (numerically) point of the described polygon.
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"L" is the lowest (numerically) point of the described polygon.
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Records beginning with a blank are coordinate records describing the shape and
location of the polygon. Polygons are always closed; i.e., the last point will
always be the same as the first.
| Pricing |
| Shoreline Detail |
$200.00 |
| Abbreviated |
$ 75.95 |
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Free Consultation and Additional Information,
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Demographics