Sioux County, NE Water Table Trend
Sioux County, NE: what the water table is actually doing
Over 72 years of USGS readings, the well tracking Sioux County's aquifer is declining at a typical pace for a declining county: 1.9 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Sioux County's source well, in detail
Depth to water at the last reading was 19.3 ft below land surface. Readings span 1948-11-01 to 2020-10-20, 196 measurements from USGS well USGS-420022103544501 (24n 57w35cb 1), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Sioux County compares nationally
Sioux County sits at rank 1171st of 1,449 ranked counties, ordered rising-to-declining, so a low number means a rising water table and a high one means fast decline. Sioux County, Nebraska is home to about 1,099 people. See the fastest-moving counties guide for how Sioux County stacks up against the most extreme cases nationally.
If you own a well in Sioux County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Sioux County, that trend is real, not assumed: 1.9 ft per decade over 72 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Sioux County can be stable in depth and still worth testing for quality, or declining and still test clean, the two are measured separately, and only a direct test settles the second one.