New York County, NY Water Table Trend
Is the water table dropping in New York County, NY?
Over 25 years of USGS readings, the well tracking New York County's aquifer is holding roughly steady: 0.1 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
New York County's source well, in detail
Depth to water at the last reading was 28 ft below land surface. Readings span 2001-05-17 to 2026-04-28, 43 measurements from USGS well USGS-404247073595801 (Ny 193. 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 New York County compares nationally
New York County sits at rank 566th 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. New York County, New York is home to about 1,660,664 people. See the fastest-moving counties guide for how New York County stacks up against the most extreme cases nationally.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in New York 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.