COUNTY REPORT MN

Chisago County, Minnesota

12 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03

Chisago County's tap water quality puts it in the upper tier nationally; the 12 ZIP codes here record few health-based violations.

How Chisago County Compares

Chisago County72/100
Minnesota avg62/100
National avg68/100

How Chisago County Compares

B
County Grade
72/100
Avg Safety Score
12
ZIP Codes
18
Water Systems

Chisago County scores 10 points above the Minnesota state average (62/100) and 4 points above the national average (68/100).

Data: EPA SDWIS Last verified: 2026-06-03

B
County Grade
72
Avg Safety Score
12
ZIP Codes
Best ZIP: 55012 (83/100)
Lowest ZIP: 55067 (53/100)
$363K
Median Home Value
$1,175
Avg Remediation (32% of home value)

ZIP Code Risk Map

Water Quality Map: Chisago County, Minnesota

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 12.5 (asthma 9.9%, diabetes 10.5%)

Estimated additional annual cost per homeowner: $1,021, driven primarily by energy_code_gap

Infrastructure: 0.337% avg pipe failure probability, 11% of ZIPs at high risk

51% of homes built before 1978 (lead paint era)

Violation History (2021–2025)

↑ Worsening trend

EPA violation counts by year across Chisago County water systems. Health-based shown in red, total in blue.

2021
1 (1 health)
2022
2 (2 health)
2023
3 (3 health)
2024
4 (4 health)
2025
4 (4 health)

Peak year: 2024 with 4 violations. Past 5 years: 14 total (14 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 9.9% (national: 8.9%)
Diabetes 10.5% (national: 10.5%)
Obesity 36.4% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1988
Median Build Year
51%
Pre-1978 Housing
34%
Pipe Failure Probability
11%
ZIPs at High Infra Risk
Low
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,021

Energy Code Gap $270/yr
Sea Level Rise $233/yr
Flood $200/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

18,809 housing units in Chisago County

Pre-1940 13%
1940–1959 6%
1960–1979 21%
1980–1999 32%
2000+ 28%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Water Safety Affordability

How much it costs to fix water issues relative to home values in Chisago County

$363K
Median Home Value
$1,175
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Chisago County, representing a small fraction of property value.

Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.

Health Outcomes vs National Average

CDC PLACES data for Chisago County residents

Asthma 9.9% (US avg: 8.9%)
Diabetes 10.5% (US avg: 11%)
Obesity 36.4% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water Systems with Most Violations

Top 5 systems in Chisago County ranked by EPA violation count.

# Water System Population Violations
1 Center City 305 6
2 Lindstrom 4,938 6
3 Chisago City 3,745 6
4 Blue Waters Leisure Park 150 6
5 Stonegate Company-op, Inc. 90 5

18 total water systems serve Chisago County.

All ZIP Codes in Chisago County

12 ZIP codes tracked in Chisago County.

# ZIP Code City Safety Score Grade Violations Home Value
1 55012 Center City 83 B 1 $368K
2 55056 North Branch 83 B 0 $298K
3 55078 Stacy 83 B 0
4 55084 Taylors Falls 83 B 0 $294K
5 55045 Lindstrom 76 B 5 $374K
6 55013 Chisago City 75 B 0 $366K
7 55069 Rush City 75 B 5 (2 health) $280K
8 55032 Harris 72 B 0 $363K
9 55074 Shafer 72 B 1 $284K
10 55047 Marine On Saint Croix 55 C 0 $479K
11 55002 Almelund 53 D 0
12 55067 Rock Creek 53 D 0

Recommended Buyer Guides for Chisago County

Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.

Overview

Chisago County in Minnesota covers 12 ZIP codes with an average Home Safety Score of B (72/100).

4 of 12 ZIP codes have recorded EPA violations. 2 health-based violations have been documented.

← Back to Minnesota water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Chisago County?
Chisago County receives a grade of B, indicating generally safe tap water across its 12 ZIP codes.
How many water systems serve Chisago County?
Chisago County is served by 18 public water systems that supply drinking water to residents across 12 ZIP codes.
What is the biggest environmental risk in Chisago County?
The primary environmental risk factor in Chisago County is energy_code_gap. This contributes to an estimated additional annual cost of $1,021 per homeowner.
How old are homes in Chisago County?
The median home build year in Chisago County is 1988. 51% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Chisago County compare to Minnesota?
Chisago County has an average water safety score of 72/100, which is above the Minnesota state average of 62/100.

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