Private Well Water Testing in Nebraska
County-by-county USGS area-risk estimates for private wells across Nebraska — arsenic exceedance probability and private-well population — plus how to test your own well at a Nebraska-certified laboratory.
Nebraska private-well risk summary
Counties covered
93
Nebraska counties with modeled risk data.
People on private wells
area estimate223,355
estimated across covered Nebraska counties.
Average arsenic risk
area estimate6%
average modeled chance a well exceeds 10 µg/L arsenic across covered counties.
Nebraska counties
- Lancaster County4% arsenic exceedance (area estimate)15,801 people on private wells
- Lincoln County7% arsenic exceedance (area estimate)9,002 people on private wells
- Hall County4% arsenic exceedance (area estimate)7,935 people on private wells
- Scotts Bluff County5% arsenic exceedance (area estimate)7,815 people on private wells
- Buffalo County5% arsenic exceedance (area estimate)7,268 people on private wells
- Washington County4% arsenic exceedance (area estimate)6,813 people on private wells
- Douglas County4% arsenic exceedance (area estimate)6,750 people on private wells
- Platte County4% arsenic exceedance (area estimate)6,687 people on private wells
- Saunders County5% arsenic exceedance (area estimate)6,618 people on private wells
- Sarpy County3% arsenic exceedance (area estimate)6,338 people on private wells
- Gage County3% arsenic exceedance (area estimate)5,089 people on private wells
- Dodge County4% arsenic exceedance (area estimate)4,774 people on private wells
- Madison County4% arsenic exceedance (area estimate)4,412 people on private wells
- Cass County3% arsenic exceedance (area estimate)4,409 people on private wells
- Seward County4% arsenic exceedance (area estimate)4,335 people on private wells
- Dawson County5% arsenic exceedance (area estimate)4,312 people on private wells
- Adams County3% arsenic exceedance (area estimate)3,935 people on private wells
- Holt County6% arsenic exceedance (area estimate)3,810 people on private wells
- Merrick County3% arsenic exceedance (area estimate)3,566 people on private wells
- York County3% arsenic exceedance (area estimate)3,387 people on private wells
- Cedar County2% arsenic exceedance (area estimate)3,249 people on private wells
- Pierce County4% arsenic exceedance (area estimate)3,210 people on private wells
- Custer County4% arsenic exceedance (area estimate)3,186 people on private wells
- Butler County4% arsenic exceedance (area estimate)3,130 people on private wells
- Saline County3% arsenic exceedance (area estimate)3,032 people on private wells
- Hamilton County3% arsenic exceedance (area estimate)2,920 people on private wells
- Keith County12% arsenic exceedance (area estimate)2,872 people on private wells
- Colfax County5% arsenic exceedance (area estimate)2,766 people on private wells
- Knox County3% arsenic exceedance (area estimate)2,725 people on private wells
- Howard County4% arsenic exceedance (area estimate)2,723 people on private wells
- Wayne County2% arsenic exceedance (area estimate)2,373 people on private wells
- Antelope County5% arsenic exceedance (area estimate)2,321 people on private wells
- Cuming County3% arsenic exceedance (area estimate)2,287 people on private wells
- Polk County3% arsenic exceedance (area estimate)2,287 people on private wells
- Dawes County6% arsenic exceedance (area estimate)2,191 people on private wells
- Stanton County4% arsenic exceedance (area estimate)2,177 people on private wells
- Dixon County2% arsenic exceedance (area estimate)2,116 people on private wells
- Kearney County4% arsenic exceedance (area estimate)2,099 people on private wells
- Dakota County3% arsenic exceedance (area estimate)2,025 people on private wells
- Phelps County6% arsenic exceedance (area estimate)1,974 people on private wells
- Burt County4% arsenic exceedance (area estimate)1,968 people on private wells
- Cherry County10% arsenic exceedance (area estimate)1,906 people on private wells
- Box Butte County6% arsenic exceedance (area estimate)1,820 people on private wells
- Sheridan County12% arsenic exceedance (area estimate)1,735 people on private wells
- Cheyenne County6% arsenic exceedance (area estimate)1,685 people on private wells
- Jefferson County3% arsenic exceedance (area estimate)1,659 people on private wells
- Boone County5% arsenic exceedance (area estimate)1,647 people on private wells
- Clay County4% arsenic exceedance (area estimate)1,548 people on private wells
- Otoe County3% arsenic exceedance (area estimate)1,532 people on private wells
- Fillmore County3% arsenic exceedance (area estimate)1,462 people on private wells
- Nuckolls County4% arsenic exceedance (area estimate)1,365 people on private wells
- Morrill County9% arsenic exceedance (area estimate)1,288 people on private wells
- Chase County4% arsenic exceedance (area estimate)1,248 people on private wells
- Red Willow County4% arsenic exceedance (area estimate)1,234 people on private wells
- Valley County4% arsenic exceedance (area estimate)1,145 people on private wells
- Furnas County4% arsenic exceedance (area estimate)1,133 people on private wells
- Sherman County5% arsenic exceedance (area estimate)1,133 people on private wells
- Thurston County2% arsenic exceedance (area estimate)1,059 people on private wells
- Garden County20% arsenic exceedance (area estimate)1,012 people on private wells
- Gosper County5% arsenic exceedance (area estimate)976 people on private wells
- Harlan County4% arsenic exceedance (area estimate)952 people on private wells
- Richardson County3% arsenic exceedance (area estimate)943 people on private wells
- Thayer County4% arsenic exceedance (area estimate)912 people on private wells
- Hitchcock County4% arsenic exceedance (area estimate)911 people on private wells
- Sioux County5% arsenic exceedance (area estimate)894 people on private wells
- Nance County4% arsenic exceedance (area estimate)885 people on private wells
- Brown County11% arsenic exceedance (area estimate)789 people on private wells
- Perkins County4% arsenic exceedance (area estimate)764 people on private wells
- Franklin County3% arsenic exceedance (area estimate)759 people on private wells
- Frontier County4% arsenic exceedance (area estimate)749 people on private wells
- Kimball County6% arsenic exceedance (area estimate)731 people on private wells
- Johnson County3% arsenic exceedance (area estimate)723 people on private wells
- Webster County4% arsenic exceedance (area estimate)719 people on private wells
- Greeley County6% arsenic exceedance (area estimate)716 people on private wells
- Garfield County12% arsenic exceedance (area estimate)676 people on private wells
- Nemaha County3% arsenic exceedance (area estimate)637 people on private wells
- Rock County11% arsenic exceedance (area estimate)606 people on private wells
- Banner County5% arsenic exceedance (area estimate)599 people on private wells
- Dundy County4% arsenic exceedance (area estimate)559 people on private wells
- Loup County13% arsenic exceedance (area estimate)554 people on private wells
- Wheeler County12% arsenic exceedance (area estimate)506 people on private wells
- Deuel County5% arsenic exceedance (area estimate)492 people on private wells
- McPherson County15% arsenic exceedance (area estimate)468 people on private wells
- Arthur County23% arsenic exceedance (area estimate)449 people on private wells
- Thomas County14% arsenic exceedance (area estimate)436 people on private wells
- Hayes County4% arsenic exceedance (area estimate)408 people on private wells
- Keya Paha County3% arsenic exceedance (area estimate)368 people on private wells
- Grant County22% arsenic exceedance (area estimate)366 people on private wells
- Boyd County2% arsenic exceedance (area estimate)358 people on private wells
- Logan County10% arsenic exceedance (area estimate)352 people on private wells
- Blaine County11% arsenic exceedance (area estimate)333 people on private wells
- Pawnee County3% arsenic exceedance (area estimate)319 people on private wells
- Hooker County15% arsenic exceedance (area estimate)148 people on private wells
Find a Nebraska-certified testing lab
Get your well tested at a Nebraska-certified laboratory. We list certification programs by state.
These figures are USGS area estimates: statistical groundwater models describing how likely elevated contaminant levels are across a county. They are not designed to predict the concentration in any single well. Only testing your own well reveals its water quality.
By TapWaterData Editorial
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