Household & family · 2024 ACS PUMS variable
SFN
Subfamily number
- Type
- Categorical
- Length
- 1
- Value codes
- 5
- Survey
- 2024 ACS 1-Year
SFNis the U.S. Census Bureau's ACS PUMS variable for subfamily number. It is a categorical field with 5 possible category codes, released in the 2024 Public Use Microdata Sample. The full list of value codes and their labels is below.
SFN value codes
| Code | Label |
|---|---|
| b | N/A (GQ/not in a subfamily) |
| 1 | In subfamily 1 |
| 2 | In subfamily 2 |
| 3 | In subfamily 3 |
| 4 | In subfamily 4 |
Work with SFN in PUMSdata
Instead of decoding SFNby hand, map and cross-tabulate it across every state and PUMA — correctly weighted, no setup. Free while we're in beta.
SFN — FAQ
What is the SFN variable in PUMS?+
SFN is the 2024 ACS Public Use Microdata Sample (PUMS) variable for "Subfamily number". It is a categorical field 1 character long.
What are the SFN codes?+
SFN has 5 value codes in the 2024 dictionary, each mapping a numeric code to a category label — all of them are listed on this page.
Where does the SFN variable come from?+
SFN is defined by the U.S. Census Bureau in the 2024 ACS PUMS data dictionary. PUMSdata is an independent product that makes this microdata easy to explore, and is not affiliated with the Census Bureau.