Water in Sunbury
The 2020 census counted 6,614 people in Sunbury, in Delaware County. It is about 21 miles from downtown Columbus.
Drinking water in Sunbury comes from Del-Co Water Company, Inc. (per City of Sunbury Utilities page; city bills sewer only). Del-Co sources: Olentangy River, O'Shaughnessy Reservoir (Scioto), Alum Creek Reservoir + Knox County well field (Del-Co 2025 CCR). Del-Co says hardness is approximately 7-8 gpg (120-140 mg/L).
Del-Co Water Company, Inc. (per City of Sunbury Utilities page; city bills sewer only) publishes a hardness figure for this supply: ~7-8 gpg (120-140 mg/L) Del-Co system figure.
ZIP codes on file for Sunbury are 43074.
Water softener installation here
A softener in Sunbury is justified by the published hardness above, not by a statewide map. It reduces scale and spotting. It does not take out chlorine, PFAS, or nitrate. Repair calls usually follow salt bridges, resin that is exhausted, or a unit sized for a different hardness than Sunbury actually has.
Nearby places
Johnstown is 12 miles from Sunbury, in Licking County. Water there is City of Johnstown Service Dept. (own water treatment plant, 395 W. Jersey St.).
Blacklick is 18 miles from Sunbury, in Franklin County. We have not confirmed Blacklick's public supplier, so that page does not state one.
Grandview Heights is 20 miles from Sunbury, in Franklin County. Water there is City of Columbus water (Columbus Water & Power) - listed contract community. Published hardness: 5.7-7.3 gpg (98-125 mg/L) 2025 annual avg by plant; system avg 115 mg/L.
Plain City is 22 miles from Sunbury, in Union County. Water there is Mid-Ohio Regional Water & Sewer District (Plain City system).
More in Sunbury
Nearby
Questions people ask
Who supplies drinking water in Sunbury?
Del-Co Water Company, Inc. (per City of Sunbury Utilities page; city bills sewer only). Del-Co Water Company, Inc. (per City of Sunbury Utilities page; city bills sewer only) publishes a hardness figure for this supply: ~7-8 gpg (120-140 mg/L) Del-Co system figure.
Is the water in Sunbury hard?
~7-8 gpg (120-140 mg/L) Del-Co system figure. That is the published figure, in the units the utility used. Spots on glass and scale in a water heater are the household signs. The test confirms the number at the address.
How is Sunbury different from Johnstown?
Johnstown is 12 miles from Sunbury, in Licking County. Water there is City of Johnstown Service Dept. (own water treatment plant, 395 W. Jersey St.).
Do I need a water softener in Sunbury?
Only if the hardness at the house matches the problem you see. The published figure for this supply is ~7-8 gpg (120-140 mg/L) Del-Co system figure. A softener addresses that mineral hardness. It will not fix chlorine taste or a well-water sulfur smell.