How hard is the water in Ogden, UT?

Tap water hardness
104mg/L
6.1gpg
Moderately hard

Calculated from the utility's calcium and magnesium results · February 2025

UT typical
231 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Calculated from utility data

Tap water in Ogden has about 104 mg/L of hardness, which is 6.1 grains per gallon. On the USGS scale that counts as moderately hard. TapWaterData worked it out from the calcium and magnesium levels the local utility reports (February 2025).

Ogden on the hardness scale, with nearby cities
060120180240300360+UT typical 231Kaysville: 134 mg/LKaysville 134Centerville: 160 mg/LCenterville 160Fruit Heights: 189 mg/LFruit Heights 189Layton: 190 mg/LLayton 190Roy: 199 mg/LRoy 199Clearfield: 330 mg/LClearfield 330Syracuse: 330 mg/LSyracuse 330Farmington: 330 mg/LFarmington 330Brigham City: 378 mg/LBrigham City 378Bountiful: 463 mg/LBountiful 463Ogden 104mg/L as calcium carbonate060120180240300360+UT 231Kaysville: 134 mg/LKaysville 134Fruit Heights: 189 mg/LFruit Heig. 189Layton: 190 mg/LLayton 190Roy: 199 mg/LRoy 199Clearfield: 330 mg/LClearfield 330Syracuse: 330 mg/LSyracuse 330104 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 104 mg/L, Ogden is 127 mg/L below the typical Utah figure of 231. None of the 10 nearest cities we track has softer water. The range nearby runs from 134 mg/L in Kaysville to 463 in Bountiful.

What 104 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for Ogden

3 people × 75 gallons a day × 6.1 gpg = 1,368 grains a day. A 24,000-grain unit regenerates about every 17 days.

Size it for your household

EPA record for Ogden's water system

Ogden City Water System · PWSID UTAH29011

No health-based violations since 2016

Serves about 87,267 people from surface water.

Health-based
0
Monitoring or reporting
1
Open now
0

EPA lists this system as serving Ogden.

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Ogden water hard?

Somewhat. It measures about 104 mg/L (6.1 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Ogden in grains per gallon?

About 6.1 gpg. One grain per gallon equals 17.1 mg/L, so 104 mg/L divided by 17.1 gives 6.1.

What size water softener do I need in Ogden?

For 3 people using 75 gallons each per day, 6.1 gpg works out to about 1,368 grains a day. A 24,000-grain softener covers that with a regeneration about every 17 days.

Has the Ogden water system had EPA violations?

EPA records show no health-based violations for Ogden City Water System since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 55 cities in Utah

Hardness data: TapWaterData US Water Hardness (calculated from utility data, February 4, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.