ZIP code
98383
in Silverdale, WashingtonPopulation 21,604
61.24/ 100
Ranked #3,976 of 32,066 US ZIPs (top 12.4%)
Ranked #91 of 581 Washington ZIPs (top 16%)
Ranked #4 of 18 Bremerton-Silverdale-Port Orchard, WA ZIPs (top 22%)
Ranks are modeled estimates — ZIPs a few hundred places apart are effectively tied.
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.
PFAS in drinking water
80%
in the top 1.9% nationally
Lower is healthier
ST95thUS98thDefinition & 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 ›Dental provider access
1.4 per 1,000 residents
in the top 2.8% nationally
Higher is healthier
ST96thUS97thDefinition & source ›
The number of dental offices located inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Physician access
2.8 per 1,000 residents
in the top 3.9% nationally
Higher is healthier
ST98thUS96thDefinition & source ›
The number of physicians’ offices located inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Humid extreme heat
7.4 days/year
in the bottom 4.7% nationally
Lower is healthier
ST34thUS5thDefinition & 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 ›Outpatient-care access
0.6 per 1,000 residents
in the top 5.4% nationally
Higher is healthier
ST95thUS95thDefinition & source ›
The number of outpatient clinics located inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Transit access
4.7 per 1,000 residents
in the top 5.7% nationally
Higher is healthier
ST91stUS94thDefinition & source ›
The number of public-transit stops inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Energy-cost burden
1.3%
in the bottom 2.8% nationally
Lower is healthier
ST15thUS3rdDefinition & source ›
The modeled share of household income spent on home energy bills — electricity, gas, and heating fuels.
A modeled share of household income spent on home energy. Estimates that hit the model’s 100% ceiling are suppressed rather than published, because at that point the figure reflects the model’s limit rather than a measured burden.
Full methodology ›Distance to a Superfund site
0.7 mi
in the bottom 6.1% nationally
Higher is healthier
ST12thUS6thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Superfund site — an abandoned or uncontrolled hazardous-waste site the EPA has listed for cleanup.
Full methodology ›Expected annual disaster loss
$0
in the top 6.5% nationally
Lower is healthier
ST78thUS94thDefinition & source ›
FEMA’s modeled estimate, in dollars per year, of the average harm to people expected from natural hazards — an annualized average, not a forecast for any single year.
Full methodology ›Subsidized affordable housing
338 units
in the top 7.2% nationally
Higher is healthier
ST85thUS93rdDefinition & source ›
The number of affordable rental units in this ZIP supported by the federal Low-Income Housing Tax Credit program.
Full methodology ›The read
ZIP 98383, one of several in Silverdale, Washington, in overall standing, comes out in the top 12.4% healthiest ZIPs nationally (3,976th) and the top 16% of Washington (91st).
A balanced showing across the data, with a few readings each side: dental providers sits in the top 2.8% nationally, physicians stands in the top 3.9% nationally, and modeled humid heat resides in the bottom 4.7% nationally. Distance to an emergency room sits at the national minimum, shared with about 11% of ZIPs. Outpatient stands in the top 5.4% nationally, and transit resides in the top 5.7% nationally. Modeled energy burden sits in the bottom 2.8% nationally. On the other hand, modeled pfas stands in the top 1.9% nationally, and distance to a Superfund site resides in the bottom 6.1% nationally. Modeled expected annual loss sits in the top 6.5% nationally.
Defined simply, for reference, 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. Distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. Expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. The closest healthier ZIP overall is ZIP 98345, about 1.3 miles away. Beyond that, the ZIP also sits on the healthier half of the national range on at least seven of the ten good-life measures tracked here, from quiet and green space to nearby care, a combination reached by about one in twenty-five US ZIP codes.
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. Compare it against the US, this state and the Bremerton-Silverdale-Port Orchard, WA metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Chronic Disease Burden
healthier than 85%
21%
Social Need / SDOH
healthier than 96%
16%
Risk Behavior
healthier than 88%
11%
Disability
healthier than 86%
7%
Climate / Disaster Risk
healthier than 79%
5%
Healthcare Access
in the top 0.00%
5%
About typical
Environmental Hazard
healthier than 49%
14%
Mental Health
healthier than 44%
8%
Holding it back
Preventive Care
healthier than 34%
13%
Lifting this score
Chronic Disease Burden
healthier than 71%
21%
Social Need / SDOH
healthier than 91%
16%
Risk Behavior
healthier than 63%
11%
Mental Health
healthier than 66%
8%
Disability
healthier than 76%
7%
Healthcare Access
in the top 0.00%
5%
About typical
Environmental Hazard
healthier than 49%
14%
Preventive Care
healthier than 58%
13%
Climate / Disaster Risk
healthier than 42%
5%
Nothing measured is holding this score back.
Lifting this score
Chronic Disease Burden
healthier than 76%
21%
Social Need / SDOH
healthier than 94%
16%
Risk Behavior
healthier than 65%
11%
Mental Health
healthier than 71%
8%
Disability
healthier than 71%
7%
Climate / Disaster Risk
healthier than 65%
5%
Healthcare Access
in the top 0.00%
5%
About typical
Environmental Hazard
healthier than 41%
14%
Preventive Care
healthier than 47%
13%
Nothing measured is holding this score back.
“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.
Nearby
98311
Washingtonshares a border
Score 58.14
Closest healthier
98345
Washingtonabout 1.3 mi away
Score 61.72
Similar health profile
98043
Washington99% similar profile
Score 61.23
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
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Arthritis among adults | 25.0% | 23.0–27.1 |
| High blood pressure among adults | 31.1% | 28.7–33.7 |
| Cancer (non-skin) or melanoma among adults | 8.7% | 7.9–9.5 |
| Current asthma among adults | 11.2% | 10.1–12.4 |
| Coronary heart disease among adults | 5.2% | 4.7–5.7 |
| Chronic obstructive pulmonary disease among adults | 4.7% | 4.2–5.3 |
| Depression among adults | 24.8% | 22.3–27.5 |
| Diagnosed diabetes among adults | 9.2% | 8.1–10.3 |
| High cholesterol among adults who have ever been screened | 33.1% | 30.5–35.8 |
| Obesity among adults | 30.2% | 26.7–33.9 |
| Stroke among adults | 2.8% | 2.6–3.0 |
| All teeth lost among adults aged >=65 years | 6.6% | 5.4–8.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.8% | 5.9–7.9 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 71.8% | 69.1–74.3 |
| Visits to doctor for routine checkup within the past year among adults | 71.5% | 68.6–74.3 |
| Cholesterol screening among adults | 83.8% | 82.1–85.4 |
| Colorectal cancer screening among adults aged 45–75 years | 70.3% | 66.7–73.4 |
| Visited dentist or dental clinic in the past year among adults | 69.9% | 67.2–72.4 |
| Mammography use among women aged 50-74 years | 73.5% | 67.7–78.3 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.3% | 15.1–19.7 |
| Current cigarette smoking among adults | 9.5% | 8.3–10.8 |
| No leisure-time physical activity among adults | 16.0% | 13.9–18.3 |
| Short sleep duration among adults | 32.9% | 29.3–36.3 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 13.9% | 12.4–15.7 |
| Frequent mental distress among adults | 16.2% | 14.6–17.9 |
| Frequent physical distress among adults | 11.8% | 10.6–13.1 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.1% | 11.8–14.6 |
| Any disability among adults | 25.4% | 22.8–28.1 |
| Hearing disability among adults | 6.1% | 5.5–6.8 |
| Independent living disability among adults | 6.4% | 5.7–7.1 |
| Mobility disability among adults | 10.3% | 9.1–11.6 |
| Self-care disability among adults | 2.7% | 2.5–3.0 |
| Vision disability among adults | 3.6% | 3.3–4.0 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | WA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 5.9% | 10.6% (3.1–25.8%) n=32,364 | 9.6% (3.5–22.3%) n=583 |
| Uninsured 18–64 | 8.0% | 9.0% (1.5–24.3%) n=32,286 | 8.2% (1.8–22.7%) n=582 |
| No HS diploma (25+) | 4.3% | 7.9% (1.8–20.7%) n=32,505 | 7.0% (1.5–16.5%) n=588 |
| Bachelor's or higher (25+) | 37.7% | 23.3% (9.2–53.6%) n=32,505 | 27.4% (12.3–59.7%) n=588 |
| Unemployment rate (16+) | 5.4% | 3.9% (0.0–9.8%) n=32,274 | 4.5% (0.0–9.7%) n=584 |
| Households without a vehicle | 3.8% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.2%) n=580 |
| Broadband subscription | 96.8% | 89.3% (75.1–97.1%) n=32,322 | 92.7% (81.1–97.4%) n=580 |
| Housing cost burden (≥30% income) | 31.4% | 23.7% (10.6–40.0%) n=32,322 | 28.9% (14.6–40.6%) n=580 |
| Homeownership rate | 56.5% | 78.7% (51.7–94.0%) n=32,322 | 75.2% (48.2–91.7%) n=580 |
| Crowded housing (>1 per room) | 1.6% | 1.3% (0.0–6.3%) n=32,322 | 2.6% (0.0–7.9%) n=580 |
| Foreign-born population | 9.5% | 2.6% (0.0–18.6%) n=32,553 | 6.7% (0.3–27.6%) n=588 |
| Single-parent households | 52.0% | 53.6% (37.3–74.1%) n=32,087 | 54.3% (40.5–76.0%) n=574 |
| Population 65+ | 20.7% | 19.4% (10.8–33.6%) n=32,553 | 18.9% (10.3–36.9%) n=588 |
| Median age | 41.2 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.0 yr (32.9–58.8) n=584 |
| Median household income | $111,139 | $72,070 ($46,039–$118,707) n=30,318 | $84,646 ($56,217–$132,145) n=547 |
| Median home value | $596,400 | $222,200 ($100,300–$579,820) n=30,049 | $452,750 ($241,540–$826,380) n=542 |
| Median gross rent | $2,135 | $1,021 ($677–$1,912) n=25,670 | $1,416 ($840–$2,197) n=476 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | WA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 81.0 yr ± 0.95 | 78.9 yr (74.7–82.8) n=31,308 | 80.2 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 0.95 years of 81.0, and it’s very unlikely to be off by more than twice that.
More ZIPs to explore ▾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