Boulder County, CO Water Table Trend
What the closest monitoring well shows for Boulder County
Grand County, CO, 38 miles from Boulder County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Boulder County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Boulder County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Grand County, CO's full page. See the no-data guide for why a county this close to a qualifying well still doesn't get its own number.
About Boulder County
Boulder County, Colorado covers 726 square miles and is home to about 330,262 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Boulder County isn't one of them yet, see the methodology guide for the exact qualifying bar.