Index of /zipcode-data/1995/ZIPDATA

• Parent Directory
• 1995.zip
• ABB.DAT
• ABB.DBF
• CNTY.DAT
• CNTY.DBF
• DMA.DAT
• DMA.DBF
• DST.DAT
• DST.DBF
• MSA.DAT
• MSA.DBF
• README.TXT
• UNQ.DAT
• UNQ.DBF
• UsersManual-zipdata.pdf
• ZIP.DAT
• ZIP.DBF
• read/
• zipcode95.sas7bdat

ZIP*Data Documentation Changes Effective June 1994

NOTE: THE FOLLOWING CHANGES DO NOT AFFECT THE RECORD/FIELD SIZE OF
      ZIP*DATA IN ANY WAY! 

The USPS has changed the way it signifies a postal ZIP/City type.
Effective 6/94, the old ZIP/City types ( type 1,2,3,4,5,9,P and U)
will be changed to the following ZIP/City Type Codes. These codes
are found in the "TYP" field in the ZIP file.

Blank = Regular ZIP Code
P     = Post Office Boxes
U     = Unique (Large Corporations, Universities, and Government
            Organizations with their own ZIP code.)
M     = Military APO and FPO type ZIP codes


In addition, the following Postal Facility Codes are now used
by the USPS. These codes are in a new field call "FAC" in the
ZIP file. The "FAC" field will replace the old "MC" field and ]
is the same length.

A = Airport Mail Facility (AMF)
B = Branch
C = Community Post Office (BMF)
D = Area Distribution Center
E = Sectional Center Facility
F = Delivery Distribution Center
G = General Mail Facility
K = Bulk Mail Center
M = Money Order Unit
N = Community Name, Former Postal Facility or Place Name
P = Post Office
S = Station
U = Urbanization
X = Unapproved mailing name

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New Data in the Delivery Statistics File:

The Delivery Statistics file (DST.DAT) has been changed to
include new data from the USPS. The record/field lengths will
remain unchanged from the February update. The following lists
the new file format with descriptions of the new fields.

Field Name              Length          Type

Zip                     5               Character
Residences              6               Numeric
Residence PO Box        6               Numeric
Businesses              6               Numeric
Business PO Box         6               Numeric
Group Delivery          6               Numeric
General Delivery        6               Numeric

The 4 new fields are defined as follows:

Residence PO Box (replaces Actual Residence):
The number of active residential mail deliveries made to
Post Office Boxes

Business PO Box (replaces Actual Business):
The number of active business mail deliveries made to
Post Office Boxes.

Group Delivery (replaces Seasonal Count):
The number of Families or Businesses served at drop sites.
A drop site is a single delivery point that services multiple
recipients.

General Delivery (replaces PO Boxes):
The number of possible businesses or families served by a
General Delivery mail drop.

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Bearing Calculation Corrections:

The following corrections should be made to the ZIP*Data/FONE*Data
documentation. Only the bearing calculations are affected by these
changes.

N = sin(Lat1) * sin(Lng1-Lng2)

D = sin(Lat2) * cos(Lat1) - cos(Lat2) * sin(Lat1) * cos(Lng1-Lng2)

B = 57.3 * arctan(N/D)

If D > 0 then B = 360+B

If D < 0 then B = 180+B

If B < 0 then B = 360+B

If B >= 360 then B = B-360


FORMULA DEFINITIONS:

N = Numerator
D = Denominator
B = Bearing