ZIP code
98303
in Anderson Island, WashingtonPopulation 1,448
49.65/ 100
Ranked #16,715 of 32,066 US ZIPs (bottom 48%)
Ranked #416 of 581 Washington ZIPs (bottom 28%)
Ranked #159 of 166 Seattle-Tacoma-Bellevue, WA ZIPs (bottom 4.3%)
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.
Civic-institution access
1.5 per 1,000 residents
in the top 1.9% nationally
Higher is healthier
ST97thUS98thDefinition & source ›
The number of civic and social organizations 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 ›Fatal road crashes
0 per 100,000 residents per year
at the national minimum
Lower is healthier
ST1stUS1stDefinition & source ›
The annual rate of fatal road crashes per 100,000 residents, pooled over a ten-year window.
A rate per resident population. Where a ZIP has too few residents for the rate to be reliable — about 30% of US ZIPs — no value is published rather than an unstable one; those ZIPs are absent from this comparison, not counted as crash-free.
Full methodology ›High cholesterol
46.6%
in the top 1.9% nationally
Lower is healthier
ST99thUS98thDefinition & source ›
The estimated share of adults with high cholesterol, among those who have ever been screened for it.
Full methodology ›Colon-cancer screening
74.6%
in the top 3.7% nationally
Higher is healthier
ST96thUS96thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Hearing disability
11.5%
in the top 6.5% nationally
Lower is healthier
ST97thUS94thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Homeownership rate
96.6%
in the top 6.8% nationally
Higher is healthier
ST96thUS93rdDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Transportation noise
0.06%
in the bottom 7.4% nationally
Lower is healthier
ST8thUS7thDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 55 decibels — a noticeable background presence.
Full methodology ›Binge drinking
12.0%
in the bottom 6.8% nationally
Lower is healthier
ST2ndUS7thDefinition & source ›
The estimated share of adults who report binge drinking — five or more drinks on one occasion for men, four or more for women.
Full methodology ›High blood pressure
46.7%
in the top 8.3% nationally
Lower is healthier
ST99thUS92ndDefinition & source ›
The estimated share of adults who have been told by a health professional that they have high blood pressure.
Full methodology ›PFAS in drinking water
56.3%
in the top 9.7% nationally
Lower is healthier
ST84thUS90thDefinition & 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 ›The read
Anderson Island, Washington (ZIP 98303), overall, ranks in the bottom 48% nationally (16,715th) and the bottom 28% of Washington (416th).
Reading across the data, the real pressures come first: modeled high cholesterol resides in the top 1.9% nationally, hearing disability settles in the top 6.5% nationally, and high blood pressure is in the top 8.3% nationally. More encouragingly, civic sits in the top 1.9% nationally, fatal road crashes lands at the national minimum, and modeled colon screening lies in the top 3.7% nationally. Homeownership stands in the top 6.8% nationally. Unemployment rests at the national minimum, shared with about 15% of ZIPs. Modeled transportation noise registers in the bottom 7.4% nationally, and binge drinking resides in the bottom 6.8% nationally.
Measured against the nearby ZIPs, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. Defined simply, transportation noise is the modeled share of an area exposed to average road, rail, and air noise at or above 55 decibels. ZIP 98327, just across the boundary, comes out healthier overall.
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 Seattle-Tacoma-Bellevue, WA metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Social Need / SDOH
healthier than 79%
16%
Environmental Hazard
healthier than 92%
14%
Preventive Care
healthier than 84%
13%
Risk Behavior
healthier than 88%
11%
About typical
Climate / Disaster Risk
healthier than 57%
5%
Healthcare Access
healthier than 41%
5%
Holding it back
Chronic Disease Burden
healthier than 9%
21%
Mental Health
healthier than 36%
8%
Disability
healthier than 26%
7%
Lifting this score
Environmental Hazard
healthier than 82%
14%
Preventive Care
healthier than 95%
13%
Risk Behavior
healthier than 64%
11%
About typical
Social Need / SDOH
healthier than 46%
16%
Mental Health
healthier than 52%
8%
Holding it back
Chronic Disease Burden
healthier than 1%
21%
Disability
healthier than 8%
7%
Climate / Disaster Risk
healthier than 19%
5%
Healthcare Access
healthier than 33%
5%
Lifting this score
Environmental Hazard
healthier than 95%
14%
Preventive Care
healthier than 98%
13%
About typical
Risk Behavior
healthier than 49%
11%
Mental Health
healthier than 44%
8%
Holding it back
Chronic Disease Burden
in the bottom 0.00%
21%
Social Need / SDOH
healthier than 17%
16%
Disability
in the bottom 0.00%
7%
Climate / Disaster Risk
healthier than 18%
5%
Healthcare Access
healthier than 14%
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 ›
Findings that name this ZIP
One of our published findings lists this ZIP code. Each finding compares one published measure against a stated benchmark, and names only the ZIP codes whose estimates are reliable enough to rank. See all surprising findings.
Clean environment, heavy chronic burden
Where the environment and chronic illness point in opposite directions
Environmental-hazard standing 91.7 (top 10%); chronic-disease standing 9.3 (bottom 10%) — 82 points apart, cleaner on the environment than it is on chronic illness.
Ranked #385 of the 18,187 ZIP codes this finding names, ordered by the gap from cleanest environment to heaviest chronic burden, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
98327
Washingtonshares a border
Score 62.50
Closest healthier
98388
Washingtonshares a border
Score 55.34
Similar health profile
97394
Oregon98% similar profile
Score 50.64
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 | 41.7% | 38.8–44.1 |
| High blood pressure among adults | 46.7% | 43.8–49.2 |
| Cancer (non-skin) or melanoma among adults | 13.7% | 12.4–15.0 |
| Current asthma among adults | 11.4% | 10.2–12.5 |
| Coronary heart disease among adults | 10.1% | 8.8–11.4 |
| Chronic obstructive pulmonary disease among adults | 9.5% | 7.7–11.3 |
| Depression among adults | 26.5% | 24.1–28.7 |
| Diagnosed diabetes among adults | 16.5% | 14.5–18.3 |
| High cholesterol among adults who have ever been screened | 46.6% | 44.1–49.0 |
| Obesity among adults | 39.2% | 35.6–42.7 |
| Stroke among adults | 5.1% | 4.4–5.8 |
| All teeth lost among adults aged >=65 years | 7.3% | 6.1–8.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.4% | 5.1–8.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 81.1% | 78.9–83.1 |
| Visits to doctor for routine checkup within the past year among adults | 78.9% | 76.9–80.7 |
| Cholesterol screening among adults | 89.7% | 88.4–90.9 |
| Colorectal cancer screening among adults aged 45–75 years | 74.6% | 72.0–76.9 |
| Visited dentist or dental clinic in the past year among adults | 68.6% | 66.3–70.8 |
| Mammography use among women aged 50-74 years | 73.4% | 69.0–77.4 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 12.0% | 10.6–13.3 |
| Current cigarette smoking among adults | 12.6% | 10.2–15.1 |
| No leisure-time physical activity among adults | 22.2% | 18.8–25.5 |
| Short sleep duration among adults | 34.3% | 31.6–37.0 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 21.4% | 18.4–24.7 |
| Frequent mental distress among adults | 15.9% | 14.1–17.5 |
| Frequent physical distress among adults | 17.9% | 15.6–20.1 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.6% | 12.7–16.7 |
| Any disability among adults | 38.5% | 34.4–42.3 |
| Hearing disability among adults | 11.5% | 10.1–12.8 |
| Independent living disability among adults | 9.1% | 7.7–10.5 |
| Mobility disability among adults | 19.5% | 16.5–22.4 |
| Self-care disability among adults | 4.9% | 4.1–5.7 |
| Vision disability among adults | 5.6% | 4.8–6.5 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | WA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 23.1% | 10.6% (3.1–25.8%) n=32,364 | 9.6% (3.5–22.3%) n=583 |
| Uninsured 18–64 | 0.0% | 9.0% (1.5–24.3%) n=32,286 | 8.2% (1.8–22.7%) n=582 |
| No HS diploma (25+) | 0.0% | 7.9% (1.8–20.7%) n=32,505 | 7.0% (1.5–16.5%) n=588 |
| Bachelor's or higher (25+) | 44.0% | 23.3% (9.2–53.6%) n=32,505 | 27.4% (12.3–59.7%) n=588 |
| Unemployment rate (16+) | 0.0% | 3.9% (0.0–9.8%) n=32,274 | 4.5% (0.0–9.7%) n=584 |
| Households without a vehicle | 2.8% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.2%) n=580 |
| Broadband subscription | 96.0% | 89.3% (75.1–97.1%) n=32,322 | 92.7% (81.1–97.4%) n=580 |
| Housing cost burden (≥30% income) | 37.4% | 23.7% (10.6–40.0%) n=32,322 | 28.9% (14.6–40.6%) n=580 |
| Homeownership rate | 96.6% | 78.7% (51.7–94.0%) n=32,322 | 75.2% (48.2–91.7%) n=580 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 2.6% (0.0–7.9%) n=580 |
| Foreign-born population | 4.6% | 2.6% (0.0–18.6%) n=32,553 | 6.7% (0.3–27.6%) n=588 |
| Single-parent households | 94.6% | 53.6% (37.3–74.1%) n=32,087 | 54.3% (40.5–76.0%) n=574 |
| Population 65+ | 39.8% | 19.4% (10.8–33.6%) n=32,553 | 18.9% (10.3–36.9%) n=588 |
| Median age | 61.6 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.0 yr (32.9–58.8) n=584 |
| Median household income | $80,282 | $72,070 ($46,039–$118,707) n=30,318 | $84,646 ($56,217–$132,145) n=547 |
| Median home value | $546,300 | $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
| Measure | Value | US median (p10–p90) | WA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 82.2 yr ± 2.10 | 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 2.10 years of 82.2, 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