COUNTY REPORT AR

Washington County, Arkansas

22 ZIP codes · Avg score 99/100 · Grade A

ZipCheckup grade for Washington County: A.

Checked records flag no major concern; missing data is unknown.

A high composite grade for Washington County is a summary of data, not a water test, so check the report for your own ZIP code among the 22 listed.

How Washington County Compares

Washington County99/100
Arkansas avg91/100
National avg73/100

How Washington County Compares

A
County Grade
99/100
Avg Safety Score
22
ZIP Codes
15
Water Systems

Washington County scores 8 points above the Arkansas state average (91/100) and 26 points above the national average (73/100).

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

A
County Grade
99
Avg Safety Score
22
ZIP Codes
Best ZIP: 72729 (100/100)
Lowest ZIP: 72959 (97/100)
$226K
Median Home Value
$1,090
Avg Remediation (0.48% of home value)

ZIP Code Risk Map

Water Quality Map: Washington County, Arkansas

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: 12.2 (asthma 10.2%, diabetes 10.1%)

Modeled additional annual cost estimate per homeowner: $930, largest modeled factor: Flood

28% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.2% (national: 8.9%)
Diabetes 10.1% (national: 10.5%)
Obesity 35.4% (national: 32.4%)

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

Infrastructure Overview

1995
Median Build Year
28%
Pre-1980 Housing
35/100
Infrastructure Stress Indicator
11%
ZIPs with High Infrastructure Stress
Moderate
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: $930

Flood $892/yr
Wildfire $300/yr
Energy Code Gap $122/yr

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

Housing Age Distribution

89,403 housing units in Washington County

Pre-1940 3%
1940–1959 6%
1960–1979 19%
1980–1999 34%
2000+ 37%

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 Washington County

$226K
Median Home Value
$1,090
Est. Remediation Cost
0.5%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Washington 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 Washington County residents

Asthma 10.2% (US avg: 8.9%)
Diabetes 10.1% (US avg: 11%)
Obesity 35.4% (US avg: 32.4%)

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

Water systems mapped to Washington County ZIP codes

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

Show all 8 water systems

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

Systems with the most violations in Washington County

5 water systems with violations in EPA records.

All ZIP Codes in Washington County

22 ZIP codes tracked in Washington County.

# ZIP Code City Safety Score Grade Violations Home Value
1 72729 Evansville 100 A 0 $368K
2 72764 Springdale 100 A 0 $226K
3 72704 Fayetteville 99 A 5 (3 health) $302K
4 72717 Canehill 99 A 4 (3 health) $166K
5 72730 Farmington 99 A 3 (3 health) $245K
6 72744 Lincoln 99 A 5 (3 health) $168K
7 72753 Prairie Grove 99 A 4 (3 health) $228K
8 72769 Summers 99 A 2 $209K
9 72701 Fayetteville 98 A 2 $324K
10 72703 Fayetteville 98 A 2 $342K
11 72727 Elkins 98 A 2 $192K
12 72774 West Fork 98 A 2 $206K
13 72959 Winslow 97 A 4 $189K
14 72702 Fayetteville — — —
15 72728 Elm Springs — — —
16 72735 Goshen — — —
17 72737 Greenland — — —
18 72741 Johnson — — —
19 72749 Morrow — — —
20 72765 Springdale — — —
21 72766 Springdale — — —
22 72770 Tontitown — — —

Recommended Buyer Guides for Washington County

Up to five guides, picked by rule.

Overview

Washington County in Arkansas covers 22 tracked ZIP records with an average Home Safety Score of A (99/100) across 13 scored records.

11 of 13 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 health-based violations appear in the available health breakdown.

← Back to Arkansas 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 Washington County?
Washington County receives an average Home Safety grade of A from its scored ZIP records (22 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Washington County?
We map 15 public water systems to 22 ZIP codes in our data for Washington County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Washington County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Washington County is flood. Across all modeled risk factors, the estimated average additional annual cost is $930 per homeowner; actual costs vary by home.
How old are homes in Washington County?
The median home build year in Washington County is 1995. 28% 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 Washington County compare to Arkansas?
Washington County has an average Home Safety Score of 99/100 under model 4.0.0, which is at or above the Arkansas state average of 91/100.

How to cite this page

APA ZipCheckup. (2026). Washington County, AR: HSS 99/100; Lead Above EPA Action Level. https://zipcheckup.com/county/arkansas/washington/
BibTeX
@misc{zipcheckup-county-arkansas-washington,
  author = {{ZipCheckup}},
  title  = {{Washington County, AR: HSS 99/100; Lead Above EPA Action Level}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/arkansas/washington/}
}

Page version: October 2026.

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