SUMMARY LEVEL SEQUENCE CHART


                                       Summary  Geographic
                                       level    component
Summary level area                     code     code


State1                                   040     00 01-11
                                                 20-28
                                                 30-36

State--County2                           050     00
State--County--County Subdivision3       060     00
State--County--County Subdivision--
 Place/Remainder                         070     00
State--County--County Subdivision--
 Place/Remainder--Census Tract/Block
 Numbering Area                          080     00
State--County--County Subdivision--
 Place/Remainder--CensusTract/Block
 Numbering Area--American Indian/
 Alaska Native Area/Remainder--
 Reservation/Trust Lands/Remainder--
 Alaska Native Regional Corporation/
 Remainder--Urbanized Area/Remainder
 --Urban/Rural--Congressional
 District--Block Group                   090     00
State [Puerto Rico only]--County--
 County Subdivision--Subbarrio4          067     00
State--County--Census Tract/Block
 Numbering Area                          140     00
State--County--Census Tract/Block
 Numbering Area--Block Group             150     00
State--Place--County                     155     00
State--Place                             160     00
State--Metropolitan Statistical
 Area/Consolidated Metropolitan
 Statistical Area                         319   00 23  24
Metropolitan Statistical Area
 [no CMSAs]--State--Central City          340   00
Metropolitan Statistical Area
  [no CMSAs]--State--County               329   00
State--Consolidated Metropolitan
 Statistical Area--Primary
 Metropolitan Statistical Area            321   00 23  24
Consolidated Metropolitan
 Statistical Area--Primary
 Metropolitan Statistical Area--
 State--Central City                      341   00
Consolidated Metropolitan
 Statistical Area--Primary
 Metropolitan Statistical Area--
 State--County                           331   00
State--Urbanized Area                    420   00 03  04
Urbanized Area--State--Central
 Place                                   460   00
Urbanized Area--State--County            430   00

Urbanized Area--State--County--
 County Subdivision                      440   00
Urbanized Area--State--County--
 County Subdivision--Place               450   00


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1Puerto Rico
2Municipio in Puerto Rico
3Barrio-pueblo or barrio in Puerto Rico
4In Puerto Rico, some subdivisions (barrios-pueblo and
barrios) are divided into sub-minor civil divisions
(subbarrios).