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How Deep Are Wells in Northumberland County, PA?
The median residential well in Northumberland County is 180 ft deep, based on 1,509 completion reports filed with the Pennsylvania Department of Conservation and Natural Resources. Most fall between 90 and 397 ft; the deepest on record is 800 ft.
That is 7 ft deeper than the Pennsylvania state-wide average of 173 ft (an n-weighted average across every Pennsylvania county with reported data). Depth depends on local geology, your own site could sit well outside Northumberland County's typical range.
Source and method: Pennsylvania Department of Conservation and Natural Resources Pennsylvania Groundwater Information System (PaGWIS), via PASDA, extracted 2026-07-14. Figures include only wells recorded as residential (domestic) use, with a reported depth between 15 and 2,000 ft (to exclude likely data-entry errors). PaGWIS carries no completion date, so figures cover all domestic wells on record rather than only recent ones, and the records are compiled from driller-submitted and historical sources at varying reliability that DCNR does not independently verify. These are figures self-reported by licensed drillers to the state; treat this as a planning reference, not a guarantee for any specific property.
Northumberland County well depth at a glance
| Metric | Value |
|---|---|
| Median depth | 180 ft |
| Typical range (10th-90th pct) | 90-397 ft |
| Full range on record | 21-800 ft |
| Completion reports used | 1,509 |
| Pennsylvania state-wide average (weighted) | 173 ft |
| Estimated drilling cost at county median | $4,500-$11,700 |
Cost estimate is the county median depth (180 ft) times HomeAdvisor's national $25-$65 per-foot drilling range, cited on our cost guide. It covers drilling only, not casing, pump, or pressure tank, and it is a planning range, not a quote. Try the well cost estimator with this county's median pre-filled as a starting point.
Frequently asked
How deep is a well in Northumberland County, PA?
The median residential well in Northumberland County is 180 ft deep, based on 1,509 completion reports filed with the Pennsylvania Department of Conservation and Natural Resources. Most wells fall between 90 and 397 ft; the deepest on record is 800 ft.
How much does it cost to drill a well in Northumberland County?
Using the county's 180 ft median depth and the national $25-$65 per foot drilling range HomeAdvisor reports, a well drilled to the local median would run roughly $4,500 to $11,700 for drilling alone, before casing, pump, or pressure tank. That is a planning range, not a quote, get quotes from licensed local contractors for your property.
Who can drill a well in Northumberland County, PA?
Check any contractor's current license status before hiring; requirements vary by state. See our guide on how to hire a licensed well driller, or browse listed contractors serving Pennsylvania.
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See the full Pennsylvania well depth by county table, or the guide to hiring a licensed well driller.