Inside the town limits, the Town of Leesburg runs its own water utility, and most houses outside town are on Loudoun Water. The Town serves some customers past its limits too, so an address outside town doesn’t settle it. The private wells are farther out on the county side, where neither system’s pipes reach. County well records count 919 active household wells within three miles of downtown, which is a lot of pumps for a place most people think of as on town water.
North of town the ground itself is different. Loudoun County calls about 18,000 acres just east of Catoctin Mountain, along Route 15 above Leesburg, karst: rock with open channels where rain and runoff reach the groundwater fast and bring pollution along. Any time a well up that way is opened for pump work, test the water afterward. That goes double if the bacteria test has been put off for a few years.
Depth is the price question here. Around Leesburg the median recorded well depth is 400 feet, and the middle half of the records run 300 to 520, by our count. In August 2026 a Leesburg house getting barely a trickle at the taps got a new pump and a bigger pressure tank, and we wrote it up two ways, one for a well under 300 feet and one for deeper, because extra depth means more pipe, more wire and more hours on the job.
Some Leesburg calls come before there’s a pump at all. In July 2026 we priced everything for a brand new well with nothing in it yet: 600 feet of drop pipe, 600 feet of wire and a large tank. In September 2026 it was a barn being turned into an apartment, which needed water run from the well, a pressure tank and a full bathroom. We don’t drill wells. Once the driller is done, the pump, the tank and the plumbing into the house are ours.