Ramsey County, Minnesota has about 542,015 residents (Census 2024 estimate) and 18 community water systems in EPA records. The largest local system is Saint Paul Regional Water Services, serving about 392,529 people from surface water.
Public-record figures, not a test of your tap. Not 100% accurate or guaranteed. Confirm with a water test, your utility or a qualified pro before you buy or act.
Saint Paul Regional Water Services Measured (utility report, 2026) · High confidence
4.9 gpg (84 mg/L), moderately hard
Source: SAINT PAUL REGIONAL WATER SERVICES water quality report, 2026
Public-record figures, not a test of your tap. Not 100% accurate or guaranteed. Confirm with a water test, your utility or a qualified pro before you buy or act.
For a 3-person home using 57 gallons per person per day and regenerating weekly, you'd remove about 5,865 grains between regenerations. Suggested size: 24,000 grain.
Estimate only. Not 100% accurate or guaranteed. Confirm with a water test, your utility or a qualified pro before you buy or act.
The 6 biggest of 18 community water systems on EPA records for this county. Service areas don't follow county lines; your water bill names your provider.
MN1620026 · serves about 392,529 people · Surface water
Lead 90th percentile: 10 ppb (period starting 2026-01-01). Action level: 15 ppb (drops to 10 ppb on Nov 1, 2027).
MN1620013 · serves about 35,343 people · Surface water
Lead 90th percentile: 6 ppb (period starting 2023-01-01) Older result. Action level: 15 ppb (drops to 10 ppb on Nov 1, 2027).
MN1620020 · serves about 26,750 people · Groundwater
Lead 90th percentile: 1 ppb (period starting 2023-01-01) Older result. Action level: 15 ppb (drops to 10 ppb on Nov 1, 2027).
MN1620024 · serves about 25,634 people · Groundwater
Lead 90th percentile: 2 ppb (period starting 2023-01-01) Older result. Action level: 15 ppb (drops to 10 ppb on Nov 1, 2027).
MN1620009 · serves about 22,902 people · Groundwater
Lead 90th percentile: 2 ppb (period starting 2023-01-01) Older result. Action level: 15 ppb (drops to 10 ppb on Nov 1, 2027).
MN1620008 · serves about 13,256 people · Groundwater
Lead 90th percentile: 2 ppb (period starting 2023-01-01) Older result. Action level: 15 ppb (drops to 10 ppb on Nov 1, 2027).
Public-record figures, not a test of your tap. Not 100% accurate or guaranteed. Confirm with a water test, your utility or a qualified pro before you buy or act.
A PFAS detection is not a violation. Federal limits (4 ppt for PFOA and PFOS) apply to running annual averages, with compliance required by 2029. In May 2026 EPA proposed extending the PFOA/PFOS deadline to 2031 and removing other PFAS limits; not final as of 2026-10-21.
These are public records for whole systems. Your home's pipes, fixtures and any private well can change what you drink. A certified lab test or a hardness test strip gives you your own numbers. Then use our PFAS and lead filter selector to see which certifications to look for.
1 of the 6 largest systems here have at least one health-based violation in EPA records since October 2021 (see each system below for status). Saint Paul Regional Water Services's most recent lead 90th percentile was 10 ppb (2026), below the 15 ppb action level. Public records can't guarantee what comes out of your tap, especially with older plumbing, so a home test is the surest check.
Saint Paul Regional Water Services reports about 4.9 grains per gallon (84 mg/L), which is moderately hard. For a 3-person home at 4.9 gpg, our softener calculator suggests a 24,000 grain unit as a starting point.
5 of the 6 sampled systems listed here detected at least one PFAS in EPA's UCMR 5 testing. A detection isn't a violation: federal PFAS limits apply to running annual averages starting in 2029.
Most homes are served by Saint Paul Regional Water Services or one of the other systems listed on this page, but service areas don't follow county lines. Your water bill names your provider, and its annual Consumer Confidence Report has the full test results.
Data as of October 21, 2026. Figures are copied from public records and combined with our own calculations; they can be out of date or wrong. Tapped Out isn't affiliated with any utility or the EPA. Written and reviewed by the Tapped Out team. How we calculate · All sources.