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ZipVitals

ZIP code

98647

in Skamokawa, WashingtonPopulation 352

50.11/ 100

Ranked #16,091 of 32,066 US ZIPs (bottom 50%)

Ranked #401 of 581 Washington ZIPs (bottom 31%)

Ranks are modeled estimates — ZIPs a few hundred places apart are effectively tied.

Broad coverage across health domains

What defines this ZIP

Metrics where this ZIP sits in the tails of the national distribution — the ones that most set it apart. Select any tile for its definition and methodology.

Arsenic in groundwater

0.97%

in the bottom 1.7% nationally

Lower is healthier

ST1st
US2nd
Definition & source ›

The modeled probability that untreated groundwater in this area — the source private wells draw on — exceeds the federal arsenic limit of 10 micrograms per liter.

A modeled likelihood for untreated groundwater, the source drawn on by private wells, which are federally unregulated. It is not a measurement of treated water delivered by a public system, and it is not a test of any individual well.

Full methodology ›

PFAS in drinking water

7.1%

in the bottom 3.5% nationally

Lower is healthier

ST8th
US3rd
Definition & source ›

The modeled probability that PFAS “forever chemicals” would be detected in untreated groundwater in this area, the source private wells draw on.

A modeled likelihood for untreated groundwater, the source drawn on by private wells, which are federally unregulated. It is not a measurement of treated water delivered by a public system, and it is not a test of any individual well.

Full methodology ›

Humid extreme heat

5.9 days/year

in the bottom 3.7% nationally

Lower is healthier

ST28th
US4th
Definition & source ›

The average number of days per year when modeled heat stress — temperature, humidity, sun, and wind combined — reaches levels hard on the body outdoors.

Full methodology ›

Walkability

1.3 intersections/sq mi

in the bottom 3.8% nationally

Higher is healthier

ST6th
US4th
Definition & source ›

The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.

Full methodology ›

Slow internet speeds

2.3%

in the top 5.0% nationally

Lower is healthier

ST95th
US95th
Definition & source ›

The share of homes whose fastest available download speed is under 10 Mbps.

Full methodology ›

Natural-disaster risk

in the top 5.7% nationally

Lower is healthier

ST79th
US94th
Definition & source ›

This area’s national rank on its single highest non-flood natural hazard — such as wildfire, tornado, or earthquake — in FEMA’s modeled National Risk Index; flooding is shown separately.

Full methodology ›

Distance to a nursing home

14.2 mi

in the top 6.0% nationally

Lower is healthier

ST83rd
US94th
Definition & source ›

The distance in miles from this ZIP’s edge to the nearest Medicare- or Medicaid-certified nursing home.

Full methodology ›

Housing-cost burden

7.9%

in the bottom 7.2% nationally

Lower is healthier

ST5th
US7th
Definition & source ›

The share of households spending 30% or more of their income on housing.

Full methodology ›

Poverty rate

29.3%

in the top 7.3% nationally

Lower is healthier

ST96th
US93rd
Definition & source ›

The share of residents whose income is below the federal poverty line, from the Census Bureau’s American Community Survey.

Full methodology ›

Air-toxics cancer risk

19.9 per million

in the bottom 7.9% nationally

Lower is healthier

ST13th
US8th
Definition & source ›

The EPA’s modeled estimate of added lifetime cancer risk from breathing outdoor air toxics, in cases per million people exposed over a lifetime.

Full methodology ›

The read

By its overall health score, Skamokawa, Washington (ZIP 98647) lands in the bottom 50% nationally (16,091st) and the bottom 31% of Washington (401st), based on limited data; treat as directional.

continue reading

Neither strongly one way nor the other, the measures sit mixed: modeled arsenic is in the bottom 1.7% nationally, and pfas stands in the bottom 3.5% nationally. Modeled humid heat settles in the bottom 3.7% nationally, and housing-cost burden lies in the bottom 7.2% nationally. Unemployment resides at the national minimum, shared with about 15% of ZIPs. Against that, walkability lands in the bottom 3.8% nationally, slow internet speeds registers in the top 5.0% nationally, and modeled disaster risk sits in the top 5.7% nationally. Distance to a nursing home rests in the top 6.0% nationally, and poverty is in the top 7.3% nationally.

To translate a couple of terms, arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Pfas is the man-made "forever chemicals" that build up in the body and environment instead of breaking down; here a modeled estimate of the chance a private well contains them. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Overall, the nearest healthier neighbor is ZIP 97103, about 0.6 miles away.

What’s driving this score

Nine domains make up the ZipVitals Score — here is how this ZIP does on each, and how much each one counts.

Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.

Compare within

Lifting this score

Social Need / SDOH

healthier than 68%

16%

Environmental Hazard

healthier than 98%

14%

Risk Behavior

healthier than 86%

11%

Climate / Disaster RiskPartial

in the top 0.00%

5%

Holding it back

Chronic Disease Burden

healthier than 20%

21%

Preventive Care

healthier than 37%

13%

Mental Health

healthier than 29%

8%

Disability

healthier than 32%

7%

Healthcare Access

healthier than 23%

5%

Lifting this score

Environmental Hazard

healthier than 94%

14%

Preventive Care

healthier than 63%

13%

Climate / Disaster RiskPartial

in the top 0.00%

5%

About typical

Risk Behavior

healthier than 59%

11%

Mental Health

healthier than 40%

8%

Holding it back

Chronic Disease Burden

healthier than 8%

21%

Social Need / SDOH

healthier than 27%

16%

Disability

healthier than 13%

7%

Healthcare Access

healthier than 20%

5%

“Share” is how much of this ZIP’s score the domain accounts for. Percentages are rounded; higher is healthier in every domain. How the score works, and who it compares you with ›

Nearby & similar ZIPs

Editorially selected — see how this ZIP compares to nearby and similar places.

How these were chosen: only ZIPs with a published Score appear — a nearby ZIP with too little data to score won’t. Nearby means closest by distance between ZIP boundaries, which can cross state lines. A similar health profile is a close match across the nine Score domains, not similar demographics. Distances are measured between ZIP boundaries — ZIPs that touch share a border. How distance is measured

Evidence

Every measure this page draws on, by source. Collapsed by default — the full data stays in the page for search engines either way.

Health OutcomesCDC PLACES 2022 / 2023 · BRFSS
MeasureCrude prevalence95% CI
Arthritis among adults36.6%32.9–40.2
High blood pressure among adults40.9%36.8–44.8
Cancer (non-skin) or melanoma among adults11.1%10.1–12.3
Current asthma among adults11.8%10.5–13.3
Coronary heart disease among adults9.2%8.1–10.5
Chronic obstructive pulmonary disease among adults8.7%7.2–10.3
Depression among adults26.2%22.6–29.9
Diagnosed diabetes among adults14.4%12.4–16.5
High cholesterol among adults who have ever been screened41.9%37.7–46.1
Obesity among adults40.0%33.5–46.7
Stroke among adults4.7%4.1–5.3
All teeth lost among adults aged >=65 years9.6%7.8–11.6
PreventionCDC PLACES 2022 / 2023 · BRFSS
MeasureCrude prevalence95% CI
Current lack of health insurance among adults aged 18-64 years7.8%6.0–9.9
Taking medicine to control high blood pressure among adults with high blood pressure76.7%73.5–79.7
Visits to doctor for routine checkup within the past year among adults74.0%70.3–77.5
Cholesterol screening among adults85.6%83.5–87.6
Colorectal cancer screening among adults aged 45–75 years67.4%62.8–71.8
Visited dentist or dental clinic in the past year among adults63.6%60.4–66.8
Mammography use among women aged 50-74 years72.7%65.4–79.4
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
MeasureCrude prevalence95% CI
Binge drinking among adults14.4%11.9–17.1
Current cigarette smoking among adults14.3%11.4–17.3
No leisure-time physical activity among adults21.1%17.0–25.3
Short sleep duration among adults30.5%25.4–35.8
Health StatusCDC PLACES 2023 · BRFSS
MeasureCrude prevalence95% CI
Fair or poor self-rated health status among adults21.9%18.5–25.7
Frequent mental distress among adults17.0%14.9–19.1
Frequent physical distress among adults16.7%14.4–19.1
DisabilityCDC PLACES 2023 · BRFSS
MeasureCrude prevalence95% CI
Cognitive disability among adults15.5%13.2–17.9
Any disability among adults35.7%30.9–40.6
Hearing disability among adults10.1%8.9–11.4
Independent living disability among adults9.0%7.8–10.5
Mobility disability among adults16.9%14.4–19.7
Self-care disability among adults4.8%4.1–5.6
Vision disability among adults5.7%5.0–6.6
Community & economyCensus ACS 5-Year · 2024 release · observed
MeasureValueUS median (p10–p90)WA median (p10–p90)
Poverty rate29.3%10.6% (3.1–25.8%) n=32,3649.6% (3.5–22.3%) n=583
Uninsured 18–6411.9%9.0% (1.5–24.3%) n=32,2868.2% (1.8–22.7%) n=582
No HS diploma (25+)8.9%7.9% (1.8–20.7%) n=32,5057.0% (1.5–16.5%) n=588
Bachelor's or higher (25+)15.2%23.3% (9.2–53.6%) n=32,50527.4% (12.3–59.7%) n=588
Unemployment rate (16+)0.0%3.9% (0.0–9.8%) n=32,2744.5% (0.0–9.7%) n=584
Households without a vehicle7.9%3.9% (0.0–12.5%) n=32,3223.7% (0.0–10.2%) n=580
Broadband subscription86.8%89.3% (75.1–97.1%) n=32,32292.7% (81.1–97.4%) n=580
Housing cost burden (≥30% income)7.9%23.7% (10.6–40.0%) n=32,32228.9% (14.6–40.6%) n=580
Homeownership rate92.1%78.7% (51.7–94.0%) n=32,32275.2% (48.2–91.7%) n=580
Crowded housing (>1 per room)0.0%1.3% (0.0–6.3%) n=32,3222.6% (0.0–7.9%) n=580
Foreign-born population0.0%2.6% (0.0–18.6%) n=32,5536.7% (0.3–27.6%) n=588
Single-parent households89.1%53.6% (37.3–74.1%) n=32,08754.3% (40.5–76.0%) n=574
Population 65+34.4%19.4% (10.8–33.6%) n=32,55318.9% (10.3–36.9%) n=588
Median age62.4 yr42.2 yr (33.0–56.3) n=32,29241.0 yr (32.9–58.8) n=584
Median household income$72,070 ($46,039–$118,707) n=30,318$84,646 ($56,217–$132,145) n=547
Median home value$259,200$222,200 ($100,300–$579,820) n=30,049$452,750 ($241,540–$826,380) n=542
Median gross rent$1,021 ($677–$1,912) n=25,670$1,416 ($840–$2,197) n=476
Life expectancyNCHS / RWJF USALEEP · model-based
MeasureValueUS median (p10–p90)WA median (p10–p90)
Life expectancy at birth78.4 yr ± 1.4778.9 yr (74.7–82.8) n=31,30880.2 yr (77.3–83.1) n=584

About the ± — it’s this estimate’s give-or-take (statisticians call it the standard error). The true life expectancy for this ZIP most likely falls within 1.47 years of 78.4, and it’s very unlikely to be off by more than twice that.

More ZIPs to explore ▾

How these lists were built: they draw only from ZIPs that have a published Score, so ZIPs with too little data to score are not listed. Distance-based lists use distance between ZIP boundaries with no state filter, so an out-of-state ZIP can appear. Statistically similar means a close match across the nine Score domains, not a demographic match: the measure is the cosine similarity between two ZIPs’ domain scores, taken over the domains both ZIPs have data for and only where that overlap covers at least six of the nine — and where no ZIP clears that minimum-overlap floor, that list is left out rather than filled with a weak match. How distance is measured