*These data are provisional and may be revised or adjusted in the future.
Cumulative Mosquito Infections by County - Indiana, 2003
| Allen County | 5 |
| Clark County | 2 |
| Clay County | 2 |
| Clinton County | 5 |
| Daviess County | 2 |
| De Kalb County | 1 |
| Decatur County | 1 |
| Elkhart County | 3 |
| Floyd County | 4 |
| Gibson County | 1 |
| Harrison County | 1 |
| Henry County | 1 |
| Jackson County | 4 |
| Jefferson County | 1 |
| Jennings County | 2 |
| Johnson County | 1 |
| Knox County | 1 |
| Marion County | 81 |
| Martin County | 5 |
| Ohio County | 2 |
| Pike County | 1 |
| Spencer County | 10 |
| Sullivan County | 1 |
| Switzerland County | 2 |
| Tippecanoe County | 3 |
| Vanderburgh County | 2 |
| Warrick County | 7 |
| Wayne County | 1 |
| Wells County | 1 |