Columbia County (COL)
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Wyoming
York
| Year |
Total stations |
Mobiles | Portables | Rovers |
% of grand total |
County total |
| 1987 | 3 | 2 | 1 | 0 | 0.26% | 28,473 |
| 1988 | 5 | 5 | 0 | 0 | 0.06% | 6,499 |
| 1989 | 9 | 6 | 1 | 0 | 1.77% | 174,481 |
| 1990 | 4 | 3 | 0 | 0 | 0.32% | 40,533 |
| 1991 | 8 | 6 | 0 | 0 | 0.28% | 31,874 |
| 1992 | 5 | 4 | 0 | 0 | 0.38% | 40,085 |
| 1993 | 4 | 2 | 0 | 0 | 0.65% | 66,134 |
| 1994 | 6 | 4 | 0 | 0 | 0.93% | 128,585 |
| 1995 | 4 | 3 | 0 | 0 | 0.23% | 33,067 |
| 1996 | 9 | 6 | 0 | 0 | 0.31% | 43,765 |
| 1997 | 9 | 7 | 0 | 1 | 0.30% | 42,317 |
| 1998 | 5 | 3 | 0 | 0 | 1.02% | 171,067 |
| 1999 | 11 | 7 | 0 | 0 | 0.98% | 145,548 |
| 2000 | 12 | 6 | 0 | 1 | 2.92% | 428,287 |
| 2001 | 10 | 5 | 0 | 0 | 1.13% | 175,712 |
| 2002 | 6 | 3 | 0 | 0 | 2.28% | 402,871 |
| 2003 | 10 | 6 | 0 | 0 | 0.69% | 97,225 |
| 2004 | 10 | 4 | 1 | 0 | 2.19% | 252,621 |
| 2005 | 10 | 1 | 0 | 0 | 2.91% | 374,263 |
| 2006 | 8 | 1 | 0 | 0 | 1.50% | 163,453 |
| 2007 | 7 | 2 | 0 | 1 | 1.33% | 138,200 |