The February 2026 monthly data are available via IPUMS CPS. We have not yet processed the January 2026 data that were recently re-released by the Census Bureau. October 2025 data were not collected during the U.S. federal government shutdown.
An "X" indicates the variable is available for the listed sample.
| Family Interrelationships Variables -- PERSON [top] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Variable
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Variable Label
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Type |
Feb 26 |
Jan 26 |
Dec 25 |
Nov 25 |
Sep 25 |
Aug 25 |
Jul 25 |
Jun 25 |
May 25 |
Apr 25 |
ASEC 25 |
Mar 25 |
Feb 25 |
Jan 25 |
Dec 24 |
Nov 24 |
Oct 24 |
Sep 24 |
Aug 24 |
Jul 24 |
Jun 24 |
May 24 |
Apr 24 |
ASEC 24 |
Mar 24 |
Feb 24 |
Jan 24 |
Dec 23 |
Nov 23 |
Oct 23 |
Sep 23 |
Aug 23 |
Jul 23 |
Jun 23 |
May 23 |
Apr 23 |
ASEC 23 |
Mar 23 |
Feb 23 |
Jan 23 |
Dec 22 |
Nov 22 |
Oct 22 |
Sep 22 |
Aug 22 |
Jul 22 |
Jun 22 |
May 22 |
Apr 22 |
ASEC 22 |
Variable
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Mar 22 |
Feb 22 |
Jan 22 |
ASEC 20 |
ASEC 19 |
ASEC 18 |
ASEC 17 |
ASEC 16 |
ASEC 15 |
ASEC 14 |
ASEC 13 |
ASEC 12 |
ASEC 11 |
ASEC 10 |
ASEC 09 |
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| MOMLOC | Person number of first mother (from programming) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | MOMLOC | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| MOMLOC2 | Person number of second mother (from programming) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | MOMLOC2 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| MOMRULE | Rule for linking first mother | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | MOMRULE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| MOM2RULE | Rule for linking second mother | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | MOM2RULE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| POPLOC | Person number of first father (from programming) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | POPLOC | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| POPLOC2 | Person number of second father (from programming) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | POPLOC2 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| POPRULE | Rule for linking first father | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | POPRULE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| POP2RULE | Rule for linking second father | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | POP2RULE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| SPLOC | Person number of spouse (from programming) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | SPLOC | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| SPRULE | Rule for linking spouse | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | SPRULE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| FAMSIZE | Number of own family members in hh | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | FAMSIZE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| NCHILD | Number of own children in household | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | NCHILD | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| NCHLT5 | Number of own children under age 5 in hh | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | NCHLT5 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| FAMUNIT | Family unit membership | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | FAMUNIT | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| ELDCH | Age of eldest own child in household | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | ELDCH | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| YNGCH | Age of youngest own child in household | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | YNGCH | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| NSIBS | Number of own siblings in household | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | NSIBS | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| ASPOUSE | Spouse line number (self-reported) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | ASPOUSE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| PECOHAB | Cohabiting partner line number (self-reported) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | PECOHAB | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| PELNMOM | Mother's line number (self-reported) | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | PELNMOM | . | . | . | . | . | X | X | X | X | X | X | X | X | X | X | |
|
Variable
|
Variable Label
|
Type |
Feb 26 |
Jan 26 |
Dec 25 |
Nov 25 |
Sep 25 |
Aug 25 |
Jul 25 |
Jun 25 |
May 25 |
Apr 25 |
ASEC 25 |
Mar 25 |
Feb 25 |
Jan 25 |
Dec 24 |
Nov 24 |
Oct 24 |
Sep 24 |
Aug 24 |
Jul 24 |
Jun 24 |
May 24 |
Apr 24 |
ASEC 24 |
Mar 24 |
Feb 24 |
Jan 24 |
Dec 23 |
Nov 23 |
Oct 23 |
Sep 23 |
Aug 23 |
Jul 23 |
Jun 23 |
May 23 |
Apr 23 |
ASEC 23 |
Mar 23 |
Feb 23 |
Jan 23 |
Dec 22 |
Nov 22 |
Oct 22 |
Sep 22 |
Aug 22 |
Jul 22 |
Jun 22 |
May 22 |
Apr 22 |
ASEC 22 |
Variable
|
Mar 22 |
Feb 22 |
Jan 22 |
ASEC 20 |
ASEC 19 |
ASEC 18 |
ASEC 17 |
ASEC 16 |
ASEC 15 |
ASEC 14 |
ASEC 13 |
ASEC 12 |
ASEC 11 |
ASEC 10 |
ASEC 09 |
|
| PELNDAD | Father's line number (self-reported) | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | PELNDAD | . | . | . | . | . | X | X | X | X | X | X | X | X | X | X | |
| PEMOMTYP | Mother's relationship to child (self-reported) | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | PEMOMTYP | . | . | . | . | . | X | X | X | X | X | X | X | X | X | X | |
| PEDADTYP | Father's relationship to child (self-reported) | P | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | PEDADTYP | . | . | . | . | . | X | X | X | X | X | X | X | X | X | X | |
| FTYPE | Family Type | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | FTYPE | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| FAMKIND | Kind of family | P | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | X | . | . | . | . | . | . | . | . | . | . | . | . | X | FAMKIND | . | . | . | X | X | X | X | X | X | X | X | X | X | X | X | |
| FAMREL | Relationship to family | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | FAMREL | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
| PELNPAR1 | Parent 1 line number (self-reported) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | PELNPAR1 | X | X | X | X | X | . | . | . | . | . | . | . | . | . | . | |
| PELNPAR2 | Parent 2 line number (self-reported) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | PELNPAR2 | X | X | X | X | X | . | . | . | . | . | . | . | . | . | . | |
| PEPAR1TYP | First parent's relationship to child (self-reported) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | PEPAR1TYP | X | X | X | X | X | . | . | . | . | . | . | . | . | . | . | |
| PEPAR2TYP | Second parent's relationship to child (self-reported) | P | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | PEPAR2TYP | X | X | X | X | X | . | . | . | . | . | . | . | . | . | . | |