|
The 1990 rural-urban commuting area files contain no labels, headers,
or titles—only data. The records are laid out as follows:
| Column Position |
Variable |
| 1-12 |
FIPS state-county-tract code |
| 1-2 |
State code |
| 3-5 |
County code |
| 6-12 |
Census tract code |
| 15-18 |
Rural-urban commuting area code |
| 20-24 |
Census tract population, 1990 |
| 26-34 |
Census tract land area, square miles, 1990 |
| 36 |
County metropolitan status, 1993 (1=metro,0=nonmetro) |
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