Armstrong County (ARM)
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Washington
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Wyoming
York
| Year |
Total stations |
Mobiles | Portables | Rovers |
% of grand total |
County total |
| 1987 | 5 | 4 | 0 | 0 | 0.14% | 15,097 |
| 1988 | 6 | 5 | 0 | 0 | 0.42% | 44,604 |
| 1989 | 1 | 1 | 0 | 0 | 0.01% | 1,424 |
| 1990 | 5 | 4 | 0 | 0 | 0.12% | 14,825 |
| 1991 | 3 | 1 | 1 | 0 | 0.53% | 61,537 |
| 1992 | 3 | 2 | 0 | 0 | 0.55% | 58,861 |
| 1993 | 2 | 1 | 1 | 0 | 0.40% | 40,046 |
| 1994 | 3 | 1 | 1 | 0 | 1.12% | 155,094 |
| 1995 | 3 | 1 | 1 | 0 | 1.61% | 232,150 |
| 1996 | 4 | 2 | 0 | 0 | 0.52% | 73,919 |
| 1997 | 9 | 1 | 0 | 0 | 1.65% | 230,197 |
| 1998 | 1 | 0 | 0 | 0 | 0.49% | 81,804 |
| 1999 | 4 | 2 | 0 | 1 | 0.71% | 105,177 |
| 2000 | 4 | 4 | 0 | 0 | 0.11% | 15,814 |
| 2001 | 4 | 4 | 0 | 0 | 0.16% | 25,288 |
| 2002 | 4 | 3 | 1 | 0 | 0.33% | 57,900 |
| 2003 | 3 | 2 | 1 | 0 | 0.47% | 66,553 |
| 2004 | 4 | 2 | 1 | 1 | 0.22% | 25,867 |
| 2005 | 3 | 2 | 0 | 1 | 0.24% | 31,115 |
| 2006 | 3 | 1 | 0 | 1 | 0.88% | 95,714 |
| 2007 | 3 | 1 | 0 | 0 | 1.07% | 110,882 |