Some unharmonized variables may not be available.
Variable |
Variable Label |
Type | Codes | Sample | |
|---|---|---|---|---|---|
| US1940A_SMA35 | Standard metropolitan area, 1935 | P | codes | 1940 1% | |
| US1980B_MIGCTYGP | Residence in 1975: State and county group | P | codes | 1980 1% | |
| US1990B_MIGMET5 | Migration state and PUMA | P | codes | 1990 1% | |
| US2000G_MIGPMA1 | Migration MA: MSA/PMSA for Migration Super-PUMA | P | codes | 2000 1% |