ZIP code
99330
in Mesa, WashingtonPopulation 1,210
55.41/ 100
Ranked #8,970 of 32,066 US ZIPs (top 28%)
Ranked #222 of 581 Washington ZIPs (top 38%)
Ranked #5 of 15 Kennewick-Richland, WA ZIPs (top 33%)
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.
Nitrate in drinking water
38.6%
in the top 1.2% nationally
Lower is healthier
ST99thUS99thDefinition & source ›
The modeled share of this area’s domestic-well groundwater at or above the federal nitrate limit of 10 milligrams 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 ›Walkability
1 intersections/sq mi
in the bottom 2.7% nationally
Higher is healthier
ST3rdUS3rdDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Median household income
$140,093
in the top 5.2% nationally
Higher is healthier
ST93rdUS95thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Fatal road crashes
49.6 per 100,000 residents per year
in the top 4.0% nationally
Lower is healthier
ST98thUS96thDefinition & 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 ›Tree cover
0.00%
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The share of this ZIP’s land area covered by forest.
Full methodology ›Fine-particle (PM2.5) exceedance
1.6%
in the top 5.8% nationally
Lower is healthier
ST69thUS94thDefinition & source ›
The share of days in the year when modeled fine-particle (PM2.5) pollution was above the EPA’s daily limit of 35 micrograms per cubic meter.
Full methodology ›Crowded housing
8.7%
in the top 5.8% nationally
Lower is healthier
ST92ndUS94thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Poverty rate
1.8%
in the bottom 6.5% nationally
Lower is healthier
ST5thUS6thDefinition & source ›
The share of residents whose income is below the federal poverty line, from the Census Bureau’s American Community Survey.
Full methodology ›Arsenic in groundwater
17.6%
in the top 7.8% nationally
Lower is healthier
ST88thUS92ndDefinition & 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 ›High blood pressure
28.3%
in the bottom 6.7% nationally
Lower is healthier
ST15thUS7thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have high blood pressure.
Full methodology ›The read
Overall, ZIP 99330, one of several in Mesa, Washington lands in the top 28% healthiest ZIPs nationally (8,970th) and the top 38% of Washington (222nd), based on limited data; treat as directional.
The signals balance out across the profile, strengths against concerns: household income is in the top 5.2% nationally, and poverty settles in the bottom 6.5% nationally. Unemployment resides at the national minimum, shared with about 15% of ZIPs. Set against that, modeled nitrate registers in the top 1.2% nationally, walkability rests in the bottom 2.7% nationally, and fatal road crashes stands in the top 4.0% nationally. Modeled tree cover lies at the national minimum, modeled fine-particle lands in the top 5.8% nationally, and crowded housing sits in the top 5.8% nationally. Modeled arsenic is in the top 7.8% nationally.
A note on the terms: nitrate is a groundwater compound from fertilizer, manure, and sewage, here a modeled estimate of the chance private-well levels exceed a benchmark. Fine-particle is fine airborne particles about one-thirtieth the width of a hair, counted on modeled days above the EPA standard. Arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. For a healthier nearby comparison, ZIP 99354, about 6.8 miles away, ranks better 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.
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 86%
21%
Social Need / SDOH
healthier than 70%
16%
Risk Behavior
healthier than 79%
11%
Disability
healthier than 63%
7%
About typical
Mental Health
healthier than 57%
8%
Climate / Disaster RiskPartial
healthier than 42%
5%
Holding it back
Environmental Hazard
healthier than 34%
14%
Preventive Care
healthier than 14%
13%
Healthcare Access
healthier than 23%
5%
Lifting this score
Chronic Disease Burden
healthier than 73%
21%
Mental Health
healthier than 79%
8%
About typical
Disability
healthier than 42%
7%
Holding it back
Social Need / SDOH
healthier than 29%
16%
Environmental Hazard
healthier than 36%
14%
Preventive Care
healthier than 23%
13%
Risk Behavior
healthier than 36%
11%
Climate / Disaster RiskPartial
healthier than 8%
5%
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.
Nearby
99301
Washingtonshares a border
Score 49.51
Closest healthier
99354
Washingtonabout 6.8 mi away
Score 57.10
Similar health profile
95020
California95% similar profile
Score 58.55
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 | 22.4% | 19.8–24.9 |
| High blood pressure among adults | 28.3% | 25.1–31.5 |
| Cancer (non-skin) or melanoma among adults | 7.0% | 6.3–7.7 |
| Current asthma among adults | 10.7% | 9.5–12.0 |
| Coronary heart disease among adults | 5.3% | 4.7–6.1 |
| Chronic obstructive pulmonary disease among adults | 5.4% | 4.5–6.4 |
| Depression among adults | 21.8% | 18.8–24.9 |
| Diagnosed diabetes among adults | 10.0% | 8.6–11.5 |
| High cholesterol among adults who have ever been screened | 32.5% | 29.1–36.1 |
| Obesity among adults | 33.0% | 27.8–38.3 |
| Stroke among adults | 3.0% | 2.6–3.4 |
| All teeth lost among adults aged >=65 years | 9.4% | 7.7–11.3 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 13.9% | 11.1–17.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 70.5% | 67.0–73.6 |
| Visits to doctor for routine checkup within the past year among adults | 70.0% | 66.2–73.6 |
| Cholesterol screening among adults | 80.9% | 78.4–83.4 |
| Colorectal cancer screening among adults aged 45–75 years | 66.4% | 61.9–70.6 |
| Visited dentist or dental clinic in the past year among adults | 65.1% | 61.9–68.2 |
| Mammography use among women aged 50-74 years | 74.2% | 67.1–80.7 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.0% | 14.3–19.9 |
| Current cigarette smoking among adults | 10.7% | 8.8–12.8 |
| No leisure-time physical activity among adults | 20.9% | 17.6–24.9 |
| Short sleep duration among adults | 33.4% | 28.8–38.5 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 19.4% | 16.7–22.7 |
| Frequent mental distress among adults | 16.9% | 14.9–19.1 |
| Frequent physical distress among adults | 13.9% | 12.1–15.9 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 15.4% | 13.4–17.8 |
| Any disability among adults | 28.7% | 24.9–33.2 |
| Hearing disability among adults | 6.5% | 5.7–7.4 |
| Independent living disability among adults | 7.9% | 6.9–9.2 |
| Mobility disability among adults | 12.2% | 10.3–14.3 |
| Self-care disability among adults | 3.7% | 3.2–4.3 |
| Vision disability among adults | 5.2% | 4.5–5.9 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | WA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 1.8% | 10.6% (3.1–25.8%) n=32,364 | 9.6% (3.5–22.3%) n=583 |
| Uninsured 18–64 | 43.9% | 9.0% (1.5–24.3%) n=32,286 | 8.2% (1.8–22.7%) n=582 |
| No HS diploma (25+) | 7.1% | 7.9% (1.8–20.7%) n=32,505 | 7.0% (1.5–16.5%) n=588 |
| Bachelor's or higher (25+) | 15.3% | 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 | 0.0% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.2%) n=580 |
| Broadband subscription | 75.0% | 89.3% (75.1–97.1%) n=32,322 | 92.7% (81.1–97.4%) n=580 |
| Housing cost burden (≥30% income) | 26.6% | 23.7% (10.6–40.0%) n=32,322 | 28.9% (14.6–40.6%) n=580 |
| Homeownership rate | 93.3% | 78.7% (51.7–94.0%) n=32,322 | 75.2% (48.2–91.7%) n=580 |
| Crowded housing (>1 per room) | 8.7% | 1.3% (0.0–6.3%) n=32,322 | 2.6% (0.0–7.9%) n=580 |
| Foreign-born population | 4.5% | 2.6% (0.0–18.6%) n=32,553 | 6.7% (0.3–27.6%) n=588 |
| Single-parent households | 29.4% | 53.6% (37.3–74.1%) n=32,087 | 54.3% (40.5–76.0%) n=574 |
| Population 65+ | 6.4% | 19.4% (10.8–33.6%) n=32,553 | 18.9% (10.3–36.9%) n=588 |
| Median age | 26.0 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.0 yr (32.9–58.8) n=584 |
| Median household income | $140,093 | $72,070 ($46,039–$118,707) n=30,318 | $84,646 ($56,217–$132,145) n=547 |
| Median home value | $554,200 | $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
| Measure | Value | US median (p10–p90) | WA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 81.6 yr ± 1.32 | 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 1.32 years of 81.6, 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