We're happy to announce that we've processed and published the American Community Survey (ACS) 2022 5-Year Estimates. As with everything we do, our goal is to empower data scientists, researchers, and academics with the most up-to-date and comprehensive demographic and census data. The Power of ACS 2022 5-Year Estimates The ACS 5-Year Estimates provide a
Documentation: | Census 1990 on 2010 Geographies |
Document: | Summary Tape File 1 |
citation: | Social Explorer, U.S. Census Bureau; Census of Population and Housing, 1990: Summary Tape File 1 on CD-ROM [machine-readable data files] / prepared by the Bureau of the Census. Washington: The Bureau [producer and distributor], 1991. |
ROSTER_P.ASC | Roster Page | |
ACKNOW.ASC | Acknowledgments | |
CONTENTS.ASC | Contents | |
ABST_PL.ASC | Abstract | |
HOWTOUSE.ASC | How to Use the File | |
SUB_LOC.ASC | Subject Locator | |
LIST_TBL.ASC | List of Tables | |
TBL_OUT.ASC | Table Outlines | |
SUM_LEV.ASC | Summary Level Sequence Chart | |
USERNOTE.ASC | User Notes Explanation and Notes | |
IDEN_FTN.ASC | Identification Section of the Data Dictionary | |
TBL_MTX.ASC | Table (Matrix) Section of the Data Dictionary | |
APPEND_A.ASC | Appendix A | Area Classifications |
APPEND_B.ASC | Appendix B | Subject Characteristics |
APPEND_C.ASC | Appendix C | Accuracy of the Data |
APPEND_D.ASC | Appendix D | Procedures |
APPEND_E.ASC | Appendix E | Facsimiles of Instructions |
APPEND_F.ASC | Appendix F | Data Products and User Assistance |
APPEND_G.ASC | Appendix G | Maps (Text only) |
APPEND_H.ASC | Appendix H | Record Layout of Machine-Readable Data Dictionary |
APPEND_I.ASC | Appendix I | Code Lists |
APPEND_J.ASC | Appendix J | CD-ROM Technical Information |
Figure 4. Reference Files | |||||
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STF1STRU.DBF | This file describes the structure of the first 67 fields of the STF1A0 segment. This is in the format of a dBASE III extended structure which has been expanded to include brief field descriptions. | ||||
Structure for database: stf1a0.dbf | |||||
Number of data records: 67 | |||||
Field | Field Name | Type | Width | Dec | |
1 | FIELD_NAME | Character | 10 | ||
2 | FIELD_TYPE | Character | 1 | ||
3 | FIELD_LEN | Numeric | 3 | ||
4 | FIELD_DEC | Numeric | 3 | ||
5 | FIELD_TEXT | Character | 60 | ||
** Total ** | 78 | ||||
TABLES.DBF | This file describes the numeric data tables. | ||||
Structure for database: | tables.dbf | ||||
Number of data records: | 1339 | ||||
Field | Field Name | Type | Width | Dec | |
1 | TABLE | Character | 6 | ||
2 | FIELD | Character | 10 | ||
3 | TEXT | Character | 68 | ||
4 | SEGMENT | Character | 6 | ||
** Total ** | 91 | ||||
CNAMESss.DBF | This file contains a list of county names and FIPS county codes for State ss. | ||||
Structure for database | |||||
Field | Field Name | Type | Width | Dec | |
1 | CNTY | Character | 3 | ||
2 | ANPSADPI | Character | 66 | ||
** Total ** | 91 | ||||
\DOCUMENT | Directory of technical documentation files in ASCII text format. | ||||
Figure 5. Index Files | |||||
STF1AMss.NDX | This is a dBASE III index file for STF1A?ss.DBF. The key fields are SUMLEV + CNTY + COUSUBFP + PLACEFP + TRACTBNA + BLCKGR. | ||||
STF1APss.NDX | This is a dBASE III index file for STF1A?ss.DBF. The key fields are SUMLEV + PLACEFP. | ||||
1Portions of this appendix are adapted from Administrative Notes, the Newsletter of the Federal Depository Library Program (May 22, 1989). |