ZIP code
98387
in Spanaway, WashingtonPopulation 50,774
50.75/ 100
Ranked #15,201 of 32,066 US ZIPs (top 47%)
Ranked #383 of 581 Washington ZIPs (bottom 34%)
Ranked #152 of 166 Seattle-Tacoma-Bellevue, WA ZIPs (bottom 8.5%)
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
87.5%
in the top 0.7% nationally
Lower is healthier
ST98thUS99thDefinition & 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
5.1 days/year
in the bottom 3.2% nationally
Lower is healthier
ST23rdUS3rdDefinition & 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 ›Natural-disaster risk
in the top 7.9% nationally
Lower is healthier
ST72ndUS92ndDefinition & 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 Superfund site
1.4 mi
in the bottom 8.7% nationally
Higher is healthier
ST18thUS9thDefinition & 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 ›PFOA in drinking water
88.7%
in the top 9.2% nationally
Lower is healthier
ST95thUS91stDefinition & source ›
The share of residents served by public water systems where PFOA, one of the man-made “forever chemicals,” was detected in EPA testing.
Measured from EPA records for the public water systems that serve this ZIP. Households on private wells — roughly 30% of the US population — are not covered by this measure, and this figure says nothing about their water.
Full methodology ›PFOS in drinking water
88.7%
in the top 9.4% nationally
Lower is healthier
ST91stUS91stDefinition & source ›
The share of residents served by public water systems where PFOS, one of the most common “forever chemicals,” was detected in EPA testing.
Measured from EPA records for the public water systems that serve this ZIP. Households on private wells — roughly 30% of the US population — are not covered by this measure, and this figure says nothing about their water.
Full methodology ›Energy-cost burden
1.6%
in the bottom 6.7% nationally
Lower is healthier
ST29thUS7thDefinition & 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 ›Expected annual disaster loss
$0
in the top 9.9% nationally
Lower is healthier
ST73rdUS90thDefinition & 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 ›Outer-floodplain exposure
2.0%
in the top 15.0% nationally
Lower is healthier
ST92ndUS85thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 0.2%-annual-chance flood band — the “500-year” zone, a lower but real 1-in-500 yearly chance.
Measured from FEMA’s mapped flood panels. Where a panel has not been mapped, no value is published for that ZIP — those ZIPs are absent from this comparison rather than counted as unexposed.
Full methodology ›Short sleep
39.6%
in the top 20% nationally
Lower is healthier
ST97thUS80thDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›The read
Judged by its overall standing, Spanaway, Washington (ZIP 98387) sits in the top 47% healthiest ZIPs nationally (15,201st) and the bottom 34% of Washington (383rd).
A few readings each way define this mixed profile: modeled humid heat settles in the bottom 3.2% nationally, modeled energy burden lands in the bottom 6.7% nationally, and subsidized affordable housing rests in the top 11.3% nationally. Distance to a community health center settles at the national minimum, shared with about 23% of ZIPs. Pulling the other way, modeled pfas lands in the top 0.7% nationally, and disaster risk rests in the top 7.9% nationally. Distance to a Superfund site settles in the bottom 8.7% nationally, and PFOA in drinking water lands in the top 9.2% nationally. PFOS in drinking water rests in the top 9.4% nationally, and modeled expected annual loss settles in the top 9.9% nationally.
Placed beside its immediate neighbors, park land runs far higher than the surrounding ZIPs on this measure. Put plainly, 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. Distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. A healthier nearby ZIP overall is ZIP 98338, just across the boundary.
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
Chronic Disease Burden
healthier than 76%
21%
Social Need / SDOH
healthier than 80%
16%
Climate / Disaster Risk
healthier than 92%
5%
Healthcare Access
healthier than 72%
5%
About typical
Environmental Hazard
healthier than 43%
14%
Risk Behavior
healthier than 49%
11%
Disability
healthier than 60%
7%
Holding it back
Preventive Care
healthier than 10%
13%
Mental Health
healthier than 10%
8%
Lifting this score
Climate / Disaster Risk
healthier than 62%
5%
About typical
Chronic Disease Burden
healthier than 56%
21%
Social Need / SDOH
healthier than 50%
16%
Environmental Hazard
healthier than 43%
14%
Healthcare Access
healthier than 57%
5%
Holding it back
Preventive Care
healthier than 16%
13%
Risk Behavior
healthier than 7%
11%
Mental Health
healthier than 8%
8%
Disability
healthier than 37%
7%
Nothing measured is lifting this score.
About typical
Environmental Hazard
healthier than 48%
14%
Climate / Disaster Risk
healthier than 52%
5%
Holding it back
Chronic Disease Burden
healthier than 25%
21%
Social Need / SDOH
healthier than 21%
16%
Preventive Care
healthier than 13%
13%
Risk Behavior
healthier than 4%
11%
Mental Health
healthier than 7%
8%
Disability
healthier than 12%
7%
Healthcare Access
healthier than 39%
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.
Below what income predicts
The ZIP codes that outlive their incomes
Estimated life expectancy is 77.5 ± 1.3 years. A median household income of $106,872 predicts 80.3 years — 2.8 years below.
Ranked #3,885 of the 5,842 ZIP codes this finding names, ordered by years above what income predicts, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
98338
Washingtonshares a border
Score 52.29
Closest healthier
98375
Washingtonshares a border
Score 54.93
Similar health profile
80903
Colorado98% similar profile
Score 53.68
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 | 24.9% | 23.2–26.5 |
| High blood pressure among adults | 31.8% | 29.8–33.7 |
| Cancer (non-skin) or melanoma among adults | 6.5% | 5.9–7.0 |
| Current asthma among adults | 11.5% | 10.4–12.5 |
| Coronary heart disease among adults | 5.1% | 4.6–5.5 |
| Chronic obstructive pulmonary disease among adults | 5.5% | 5.0–6.0 |
| Depression among adults | 27.6% | 25.4–29.7 |
| Diagnosed diabetes among adults | 10.8% | 9.8–11.8 |
| High cholesterol among adults who have ever been screened | 34.4% | 32.3–36.4 |
| Obesity among adults | 38.9% | 35.7–41.9 |
| Stroke among adults | 3.0% | 2.8–3.2 |
| All teeth lost among adults aged >=65 years | 11.7% | 9.9–13.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 9.6% | 8.5–10.8 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 68.2% | 65.7–70.3 |
| Visits to doctor for routine checkup within the past year among adults | 68.9% | 66.5–71.2 |
| Cholesterol screening among adults | 81.3% | 79.5–82.8 |
| Colorectal cancer screening among adults aged 45–75 years | 62.4% | 59.5–65.2 |
| Visited dentist or dental clinic in the past year among adults | 61.3% | 58.9–63.6 |
| Mammography use among women aged 50-74 years | 71.5% | 67.1–75.5 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.6% | 15.8–19.4 |
| Current cigarette smoking among adults | 13.3% | 11.9–14.7 |
| No leisure-time physical activity among adults | 20.3% | 18.4–22.2 |
| Short sleep duration among adults | 39.6% | 36.8–42.5 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 18.7% | 17.2–20.3 |
| Frequent mental distress among adults | 19.9% | 18.4–21.5 |
| Frequent physical distress among adults | 14.5% | 13.3–15.7 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 17.5% | 16.1–18.9 |
| Any disability among adults | 32.4% | 30.2–34.6 |
| Hearing disability among adults | 6.3% | 5.7–6.8 |
| Independent living disability among adults | 8.3% | 7.6–9.1 |
| Mobility disability among adults | 12.3% | 11.2–13.4 |
| Self-care disability among adults | 3.6% | 3.3–3.9 |
| Vision disability among adults | 4.7% | 4.4–5.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | WA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 7.4% | 10.6% (3.1–25.8%) n=32,364 | 9.6% (3.5–22.3%) n=583 |
| Uninsured 18–64 | 8.4% | 9.0% (1.5–24.3%) n=32,286 | 8.2% (1.8–22.7%) n=582 |
| No HS diploma (25+) | 9.8% | 7.9% (1.8–20.7%) n=32,505 | 7.0% (1.5–16.5%) n=588 |
| Bachelor's or higher (25+) | 18.4% | 23.3% (9.2–53.6%) n=32,505 | 27.4% (12.3–59.7%) n=588 |
| Unemployment rate (16+) | 4.5% | 3.9% (0.0–9.8%) n=32,274 | 4.5% (0.0–9.7%) n=584 |
| Households without a vehicle | 3.2% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.2%) n=580 |
| Broadband subscription | 95.2% | 89.3% (75.1–97.1%) n=32,322 | 92.7% (81.1–97.4%) n=580 |
| Housing cost burden (≥30% income) | 29.9% | 23.7% (10.6–40.0%) n=32,322 | 28.9% (14.6–40.6%) n=580 |
| Homeownership rate | 77.4% | 78.7% (51.7–94.0%) n=32,322 | 75.2% (48.2–91.7%) n=580 |
| Crowded housing (>1 per room) | 3.3% | 1.3% (0.0–6.3%) n=32,322 | 2.6% (0.0–7.9%) n=580 |
| Foreign-born population | 12.6% | 2.6% (0.0–18.6%) n=32,553 | 6.7% (0.3–27.6%) n=588 |
| Single-parent households | 44.1% | 53.6% (37.3–74.1%) n=32,087 | 54.3% (40.5–76.0%) n=574 |
| Population 65+ | 10.6% | 19.4% (10.8–33.6%) n=32,553 | 18.9% (10.3–36.9%) n=588 |
| Median age | 34.3 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.0 yr (32.9–58.8) n=584 |
| Median household income | $106,872 | $72,070 ($46,039–$118,707) n=30,318 | $84,646 ($56,217–$132,145) n=547 |
| Median home value | $461,000 | $222,200 ($100,300–$579,820) n=30,049 | $452,750 ($241,540–$826,380) n=542 |
| Median gross rent | $1,869 | $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 | 77.5 yr ± 0.68 | 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 0.68 years of 77.5, 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