Place of Work--State and County Level--For the United States:  1990 Census
+------------------------------------------------+------------------------+
|Place of Work--State and County Level           |      Number  Percent   |
+------------------------------------------------+------------------------+
|    Workers 16 years and over.................. | 115,070,274    100.0   |
|Worked in state of residence................... | 111,076,070     96.5   |
|  Worked in county of residence................ |  87,587,677     76.1   |
|  Worked outside county of residence........... |  23,488,393     20.4   |
|Worked outside state of residence.............. |   3,994,204      3.5   |
+------------------------------------------------+------------------------+

Place of Work--State and County Level--For the United States:  1980 Census
+------------------------------------------------+------------------------+
|Place of Work--State and County Level           |      Number  Percent   |
+------------------------------------------------+------------------------+
|    Workers 16 years and over.................. |  96,672,203      ...   |
|       Workers who reported a place of work.... |  88,382,539    100.0   |
|Worked in state of residence................... |  85,625,362     96.9   |
|  Worked in county of residence................ |  69,998,780     79.2   |
|  Worked outside county of residence........... |  15,626,582     17.7   |
|Worked outside state of residence.............. |   2,757,177      3.1   |
|  Place of work not reported................... |   8,289,664      ...   |
+------------------------------------------------+------------------------+
 ...  Not applicable.

 Source:  1990 Census of Population, STF3C.
 Source:  1980 Census of Population, STF3C.
 Contact:  Journey-to-Work and Migration Statistics Branch, Population
           Division, U.S. Bureau of the Census, (301) 457-2454.