Water in Marysville
The 2020 census counted 25,571 people in Marysville, in Union County. It is about 28 miles from downtown Columbus.
Drinking water in Marysville comes from City of Marysville Division of Water (own plant). Source: Mill Creek (surface) + groundwater wells; emergency interconnect with Del-Co (2025 CCR). CCR does not list hardness.
City of Marysville Division of Water (own plant) does not publish a hardness figure in the report we reviewed. We test hardness on site in Marysville rather than borrow a number from a neighboring utility.
ZIP codes on file for Marysville are 43040, 43041.
Reverse osmosis installation here
Reverse osmosis in Marysville belongs at the kitchen sink, for cooking and drinking. It is not a whole-house softener. A unit should be certified for the reductions you actually want.
Nearby cities
Dublin is 15 miles from Marysville, 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.
Delaware is 16 miles from Marysville, in Delaware County. Water there is City of Delaware Public Utilities (own plant).
Powell is 16 miles from Marysville, in Delaware County. Water there is Del-Co Water Company, Inc. (per City of Powell utilities page). Published hardness: 7-8 gpg (120-140 mg/L) per Del-Co.
Hilliard is 19 miles from Marysville, 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.
More in Marysville
Nearby
Questions people ask
Who supplies drinking water in Marysville?
City of Marysville Division of Water (own plant). City of Marysville Division of Water (own plant) does not publish a hardness figure in the report we reviewed. We test hardness on site in Marysville rather than borrow a number from a neighboring utility.
Is the water in Marysville hard?
Marysville does not have a hardness figure we are willing to cite. The supplier's report does not list one. A grains-per-gallon test at the house is the number that matters.
How is Marysville different from Dublin?
Dublin is 15 miles from Marysville, 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.
Which ZIP codes does the Marysville page cover?
43040, 43041. Those come from a named place source, not a guessed centroid. Houses just outside the city limits may be on a different supplier.