For background information and help with any of the geographic codes|
used in the MABLE database (source/target geocodes) consult the file:
(Master Area Geographic Glossary Of Terms)
Select "SOURCE" Geocode(s)
Select "TARGET" Geocode(s)
| + If you chose census block then you may not choose more
than 5 states.
| * If you chose "Concentric Ring
Pseudo-Geocode" from either list (above) then you must specify
the "Point and Distance" or "Ring Geocode" options below.
| ** The 95 MSA and PMSA codes are not available
in New England. NECMA95 codes are available only for New
| *** Hydrologic Unit Codes are normally 8
digits, but you can specify keeping only the first 2, 4 or 6 (region,
subregion and accounting units). These codes not available for Alaska
Geographic Filtering Options
You can specify any or all of 3 types of geography to limit the universe
to be processed. You may, for example, only want to see a file with
geography for a set of counties, or for a specific metro area (or
areas), or possibly for a city (place). You can do so by entering the
appropriate FIPS (Federal Information Processing Standard) codes in the
text entry boxes that follow. If you need to "look up" the codes you can
click on the links to the code-list files in each section.
By default, if you specify more than one kind of geography here then the
application assumes that you want to "and" the selections, keeping only
areas that satisfy all criteria. For example, if you specified three
counties and a metro area, you would only get data based on blocks that
were in both the counties and the metro area (i.e. the
intersection of the selected areas.) To override this default and
choose geographies that satisfy any (rather than all) of
your select criteria -- CLICK HERE:
All selections made below are in addition to the
state-level or distance-based filtering which you specified above
County codes .
Enter 5-digit FIPS county codes with leading zeroes separated by blanks.
You may enter 3-digit codes if you selected only one state. Your output
will be limited to the counties specified.
Metro Area codes.
Enter 4-digit FIPS metro area codes with leading zeroes separated by
blanks. MSA, CMSA and PMSA codes may be used (4-digit only). The 1990
definitions will be used. Your output will be limited to the metro areas
specified. New England NECMA codes can not be used.
Enter 7-digit FIPS place codes with leading zeroes separated by blanks.
You can enter 5-digit codes if only one state has been selected. Your
output will be limited to the official city limits of these cities as of
the 1990 census.
Process time for large areas may be several minutes.