COUNTY REPORT WA

Okanogan County, Washington

19 ZIP codes · Avg score 67/100 · Grade C

ZipCheckup grade for Okanogan County: C.

A mixed picture - some signals here are worth your attention.

If your home is in Okanogan County, the C grade is a cue to open your ZIP code's report, one of 19 here, and see which factors weigh on the score.

How Okanogan County Compares

Okanogan County67/100
Washington avg86/100
National avg73/100

How Okanogan County Compares

C
County Grade
67/100
Avg Safety Score
19
ZIP Codes
9
Water Systems

Okanogan County scores 19 points below the Washington state average (86/100) and 6 points below the national average (73/100).

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

C
County Grade
67
Avg Safety Score
19
ZIP Codes
Best ZIP: 98841 (67/100)
Lowest ZIP: 98841 (67/100)
$288K
Median Home Value
$367
Avg Remediation (0.13% of home value)

ZIP Code Risk Map

Water Quality Map: Okanogan County, Washington

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: 14.1 (asthma 11.6%, diabetes 13.3%)

Modeled additional annual cost estimate per homeowner: $1,954, largest modeled factor: Wildfire

50% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 11.6% (national: 8.9%)
Diabetes 13.3% (national: 10.5%)
Obesity 32.6% (national: 32.4%)

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

Infrastructure Overview

1983
Median Build Year
50%
Pre-1980 Housing
34/100
Infrastructure Stress Indicator
16%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,954

Wildfire $1,200/yr
Flood $500/yr
Energy Code Gap $369/yr

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

Housing Age Distribution

22,373 housing units in Okanogan County

Pre-1940 11%
1940–1959 15%
1960–1979 24%
1980–1999 30%
2000+ 20%

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 Okanogan County

$288K
Median Home Value
$367
Est. Remediation Cost
0.1%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Okanogan County can be compared with the median property value; actual costs vary by property.

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 Okanogan County residents

Asthma 11.6% (US avg: 8.9%)
Diabetes 13.3% (US avg: 11%)
Obesity 32.6% (US avg: 32.4%)

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

Water systems mapped to Okanogan County ZIP codes

8 community water systems mapped to Okanogan County ZIP codes; EPA may list more systems serving the county.

Show all 8 water systems

9 water systems mapped to Okanogan County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Okanogan County

3 water systems with violations in EPA records.

All ZIP Codes in Okanogan County

19 ZIP codes tracked in Okanogan County.

# ZIP Code City Safety Score Grade Violations Home Value
1 98841 Omak 67 C 2 $288K
2 98812 Brewster — — 0 $301K
3 98814 Carlton — — $512K
4 98819 Conconully — — $216K
5 98827 Loomis — — 0 —
6 98829 Malott — — 3 (1 health) $309K
7 98833 Mazama — — $604K
8 98834 Methow — — $539K
9 98840 Okanogan — — 3 (1 health) $252K
10 98844 Oroville — — 0 $251K
11 98846 Pateros — — 7 $315K
12 98849 Riverside — — $242K
13 98855 Tonasket — — 0 $230K
14 98856 Twisp — — $398K
15 98859 Wauconda — — —
16 98862 Winthrop — — $695K
17 99116 Coulee Dam — — $213K
18 99124 Elmer City — — $185K
19 99155 Nespelem — — $137K

Recommended Buyer Guides for Okanogan County

When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.

Overview

Okanogan County in Washington covers 19 tracked ZIP records with an average Home Safety Score of C (67/100) across 1 scored records.

4 of 8 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation appear in the available health breakdown.

← Back to Washington Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Okanogan County?
Okanogan County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Okanogan County?
We map 9 public water systems to 19 ZIP codes in our data for Okanogan County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Okanogan County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Okanogan County is wildfire. Across all modeled risk factors, the estimated average additional annual cost is $1,954 per homeowner; actual costs vary by home.
How old are homes in Okanogan County?
The median home build year in Okanogan County is 1983. 50% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Okanogan County compare to Washington?
Okanogan County has an average Home Safety Score of 67/100 under model 4.0.0, which is below the Washington state average of 86/100.

How to cite this page

APA ZipCheckup. (2026). Okanogan County, WA: HSS 67/100; 1 Health Violation. https://zipcheckup.com/county/washington/okanogan/
BibTeX
@misc{zipcheckup-county-washington-okanogan,
  author = {{ZipCheckup}},
  title  = {{Okanogan County, WA: HSS 67/100; 1 Health Violation}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/washington/okanogan/}
}

Page version: October 2026.

Get safety alerts for Okanogan, Washington

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Check your water filter options Free tool - no phone call required.