How hard is the water in Pearland, TX?

Tap water hardness
79mg/L
4.6gpg
Moderately hard

Reported by City of Pearland · June 2025

TX typical
112 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Utility report

Tap water in Pearland has about 79 mg/L of hardness, which is 4.6 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from City of Pearland, dated June 2025.

Pearland on the hardness scale, with nearby cities
060120180240300360+TX typical 112Webster: 42 mg/LWebster 42Bellaire: 54 mg/LBellaire 54Galena Park: 57 mg/LGalena Park 57South Houston: 60 mg/LSouth Houston 60Missouri City: 67 mg/LMissouri City 67Pasadena: 68 mg/LPasadena 68Friendswood: 69 mg/LFriendswood 69West University Place: 88 mg/LWest University Place 88League City: 114 mg/LLeague City 114Sienna: 170 mg/LSienna 170Pearland 79mg/L as calcium carbonate060120180240300360+TX 112Webster: 42 mg/LWebster 42South Houston: 60 mg/LSouth Hous. 60Missouri City: 67 mg/LMissouri C. 67Pasadena: 68 mg/LPasadena 68Friendswood: 69 mg/LFriendswood 69Sienna: 170 mg/LSienna 17079 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Pearland sits 33 mg/L below the typical Texas figure of 112. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 42 mg/L in Webster to 170 in Sienna.

What 79 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 Pearland

3 people × 75 gallons a day × 4.6 gpg = 1,037 grains a day. A 24,000-grain unit regenerates about every 23 days.

Size it for your household

EPA record for Pearland's water system

City of Pearland · PWSID TX0200008

No health-based violations since 2016

Serves about 125,828 people from surface water.

Health-based
0
Monitoring or reporting
8
Open now
0

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 Pearland water hard?

Somewhat. It measures about 79 mg/L (4.6 grains per gallon), which the USGS classes as moderately hard.

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

About 4.6 gpg. One grain per gallon equals 17.1 mg/L, so 79 mg/L divided by 17.1 gives 4.6.

What size water softener do I need in Pearland?

For 3 people using 75 gallons each per day, 4.6 gpg works out to about 1,037 grains a day. A 24,000-grain softener covers that with a regeneration about every 23 days.

Has the Pearland water system had EPA violations?

EPA records show no health-based violations for City of Pearland since 2016. There were also 8 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 342 cities in Texas

Hardness data: TapWaterData US Water Hardness (utility report, June 10, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.