Well water testing in your county
If your home is on a private well, nobody tests the water for you. We list who tests it in your county, what a bacteria test costs, how to get a sample bottle, and when and where to drop it off, taken from each health department's and lab's own pages.
Across 38 counties, a bacteria test costs from $12 to $250, typically $38. Compare every county
Pick your county
Michigan7 counties · from $12
North Carolina11 counties · from $25
Ohio11 counties · from $30
Pennsylvania5 counties · from $25
What to expect
- 29 of these 41 counties test wells through their own health department. The rest point you to a state or university lab.
- In 17 counties, staff come out to take the sample, often for a trip fee.
- Bacteria samples usually have to reach the lab within a day or two, so drop-off days matter. Each county page shows them.
- 10 counties list a free or lower-cost testing program.
Now covering Michigan, North Carolina, Ohio, Pennsylvania and Wisconsin. More counties are being added.