ZIP code
63303
in St. Charles, MissouriPopulation 46,089
58.02/ 100
Ranked #6,374 of 32,066 US ZIPs (top 20%)
Ranked #52 of 993 Missouri ZIPs (top 5.3%)
Ranked #38 of 234 St. Louis, MO-IL ZIPs (top 16%)
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.
Expected annual disaster loss
$0
in the top 2.8% nationally
Lower is healthier
ST99thUS97thDefinition & 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 ›Lead in tap water
0 ppb
at the national minimum
Lower is healthier
US1stDefinition & source ›
The lead level at the 90th percentile of tap-water samples reported by the public water systems serving this ZIP, in parts per billion — the EPA requires action above 15 ppb.
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 ›Air-toxics cancer risk
39.9 per million
in the top 6.7% nationally
Lower is healthier
ST91stUS93rdDefinition & 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 ›Natural-disaster risk
in the top 7.4% nationally
Lower is healthier
ST97thUS93rdDefinition & 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 ›Floodplain exposure
35.9%
in the top 7.6% nationally
Lower is healthier
ST93rdUS92ndDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 1%-annual-chance floodplain — the “100-year” flood zone, where flooding has about a 1-in-100 chance in any given year.
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 ›Loneliness
28.1%
in the bottom 7.9% nationally
Lower is healthier
ST4thUS8thDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Food insecurity
8.2%
in the bottom 8.3% nationally
Lower is healthier
ST4thUS8thDefinition & source ›
The estimated share of adults who experienced food insecurity in the past 12 months.
Full methodology ›Energy-cost burden
1.7%
in the bottom 7.3% nationally
Lower is healthier
ST3rdUS7thDefinition & 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 ›Mental-health provider access
0.11 per 1,000 residents
in the top 10.2% nationally
Higher is healthier
ST93rdUS90thDefinition & source ›
The number of mental-health 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 ›Distance to a Superfund site
2.1 mi
in the bottom 11.1% nationally
Higher is healthier
ST9thUS11thDefinition & 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 ›The read
On balance, and by the composite measure, ZIP 63303, one of several in St. Charles, Missouri ranks in the top 20% healthiest ZIPs nationally (6,374th) and the top 5.3% of Missouri (52nd).
The profile opens on a set of genuinely favorable readings: lead in tap water sits at the national minimum, and modeled loneliness rests in the bottom 7.9% nationally. Modeled food insecurity is in the bottom 8.3% nationally, and energy burden stands in the bottom 7.3% nationally. Mental-health providers settles in the top 10.2% nationally. On the other side, modeled expected annual loss lies in the top 2.8% nationally, air-toxics cancer risk resides in the top 6.7% nationally, and disaster risk lands in the top 7.4% nationally. Floodplain exposure registers in the top 7.6% nationally, and distance to a Superfund site sits in the bottom 11.1% nationally.
Compared with the ZIPs it borders, park land runs far lower than the surrounding ZIPs on this measure. In plainer terms, expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. Lead in tap water is the EPA trigger, 15 parts per billion in tap samples, above which a water system must act on lead. Air-toxics cancer risk is a modeled EPA estimate of added lifetime cancer risk from breathing outdoor air, per million people. For a healthier nearby ZIP overall, look to ZIP 63017, 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 St. Louis, MO-IL 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 79%
21%
Social Need / SDOH
healthier than 94%
16%
Preventive Care
healthier than 79%
13%
Mental Health
healthier than 73%
8%
Disability
healthier than 82%
7%
Healthcare Access
healthier than 92%
5%
About typical
Risk Behavior
healthier than 49%
11%
Holding it back
Environmental Hazard
healthier than 13%
14%
Climate / Disaster Risk
healthier than 12%
5%
Lifting this score
Chronic Disease Burden
healthier than 93%
21%
Social Need / SDOH
healthier than 96%
16%
Preventive Care
healthier than 94%
13%
Risk Behavior
healthier than 86%
11%
Mental Health
healthier than 96%
8%
Disability
healthier than 96%
7%
Healthcare Access
healthier than 93%
5%
Holding it back
Environmental Hazard
healthier than 12%
14%
Climate / Disaster Risk
healthier than 6%
5%
Lifting this score
Chronic Disease Burden
healthier than 80%
21%
Social Need / SDOH
healthier than 84%
16%
Preventive Care
healthier than 83%
13%
Risk Behavior
healthier than 63%
11%
Mental Health
healthier than 88%
8%
Disability
healthier than 84%
7%
Healthcare Access
healthier than 91%
5%
Holding it back
Environmental Hazard
healthier than 27%
14%
Climate / Disaster Risk
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
2 of our published findings list 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.
Heavy environment, light chronic burden
Where the environment and chronic illness point in opposite directions
Environmental-hazard standing 12.9; chronic-disease standing 78.9 — 66 points apart, heavier on the environment than it is on chronic illness.
Ranked #16,020 of the 18,187 ZIP codes this finding names, ordered by the gap from cleanest environment to heaviest chronic burden, highest first.
Highest-risk tenth
Air toxics and the years between the two ends of the risk scale
Modeled air-toxics cancer risk is 39.9 cases per million — among the tenth of compared ZIP codes with the most. Estimated life expectancy is 80.3 ± 1.1 years.
Ranked #1,408 of the 4,173 ZIP codes this finding names, ordered by modeled air-toxics risk, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
63017
Missourishares a border
Score 67.44
Closest healthier
63146
Missourishares a border
Score 60.82
Similar health profile
50047
Iowa97% similar profile
Score 54.29
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 | 26.0% | 23.2–28.9 |
| High blood pressure among adults | 31.6% | 28.2–35.1 |
| Cancer (non-skin) or melanoma among adults | 9.0% | 8.2–9.9 |
| Current asthma among adults | 10.0% | 8.8–11.2 |
| Coronary heart disease among adults | 5.4% | 4.9–6.1 |
| Chronic obstructive pulmonary disease among adults | 5.6% | 5.0–6.3 |
| Depression among adults | 22.3% | 19.2–25.5 |
| Diagnosed diabetes among adults | 10.2% | 8.9–11.7 |
| High cholesterol among adults who have ever been screened | 36.8% | 33.0–40.6 |
| Obesity among adults | 35.0% | 29.6–40.6 |
| Stroke among adults | 2.8% | 2.6–3.0 |
| All teeth lost among adults aged >=65 years | 8.2% | 6.5–9.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.1% | 5.2–7.1 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.4% | 74.4–80.1 |
| Visits to doctor for routine checkup within the past year among adults | 78.5% | 75.2–81.5 |
| Cholesterol screening among adults | 87.2% | 85.6–88.7 |
| Colorectal cancer screening among adults aged 45–75 years | 70.3% | 65.7–74.1 |
| Visited dentist or dental clinic in the past year among adults | 67.5% | 64.1–70.5 |
| Mammography use among women aged 50-74 years | 79.7% | 73.2–84.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 18.2% | 15.3–21.3 |
| Current cigarette smoking among adults | 11.3% | 9.7–13.1 |
| No leisure-time physical activity among adults | 22.4% | 19.1–26.0 |
| Short sleep duration among adults | 39.1% | 34.1–43.9 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 14.7% | 12.8–16.7 |
| Frequent mental distress among adults | 14.7% | 13.0–16.5 |
| Frequent physical distress among adults | 11.5% | 10.2–13.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.6% | 12.2–15.3 |
| Any disability among adults | 30.6% | 27.0–34.3 |
| Hearing disability among adults | 7.0% | 6.2–7.8 |
| Independent living disability among adults | 6.5% | 5.8–7.2 |
| Mobility disability among adults | 11.3% | 9.9–12.9 |
| Self-care disability among adults | 2.6% | 2.4–2.9 |
| Vision disability among adults | 3.4% | 3.1–3.8 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 16.6% | 14.2–19.3 |
| Food insecurity in the past 12 months among adults | 8.2% | 7.0–9.5 |
| Received food stamps in the past 12 months among adults | 5.5% | 4.7–6.4 |
| Housing insecurity in the past 12 months among adults | 8.1% | 7.0–9.4 |
| Lack of reliable transportation in the past 12 months among adults | 5.6% | 4.9–6.3 |
| Loneliness among adults | 28.1% | 24.3–32.3 |
| Utility services shut-off threat in the past 12 months among adults | 5.8% | 5.0–6.6 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MO median (p10–p90) |
|---|---|---|---|
| Poverty rate | 5.3% | 10.6% (3.1–25.8%) n=32,364 | 12.3% (3.2–26.0%) n=1,009 |
| Uninsured 18–64 | 5.0% | 9.0% (1.5–24.3%) n=32,286 | 13.2% (3.5–28.4%) n=1,006 |
| No HS diploma (25+) | 3.6% | 7.9% (1.8–20.7%) n=32,505 | 9.5% (2.5–20.5%) n=1,009 |
| Bachelor's or higher (25+) | 48.8% | 23.3% (9.2–53.6%) n=32,505 | 18.1% (7.2–40.2%) n=1,009 |
| Unemployment rate (16+) | 2.1% | 3.9% (0.0–9.8%) n=32,274 | 2.9% (0.0–8.5%) n=1,003 |
| Households without a vehicle | 3.4% | 3.9% (0.0–12.5%) n=32,322 | 4.1% (0.0–11.9%) n=1,009 |
| Broadband subscription | 94.7% | 89.3% (75.1–97.1%) n=32,322 | 86.3% (72.7–95.2%) n=1,009 |
| Housing cost burden (≥30% income) | 20.2% | 23.7% (10.6–40.0%) n=32,322 | 20.7% (8.4–33.9%) n=1,009 |
| Homeownership rate | 74.1% | 78.7% (51.7–94.0%) n=32,322 | 79.4% (56.0–94.3%) n=1,009 |
| Crowded housing (>1 per room) | 0.8% | 1.3% (0.0–6.3%) n=32,322 | 1.1% (0.0–5.1%) n=1,009 |
| Foreign-born population | 6.2% | 2.6% (0.0–18.6%) n=32,553 | 0.8% (0.0–6.4%) n=1,010 |
| Single-parent households | 58.8% | 53.6% (37.3–74.1%) n=32,087 | 55.0% (39.5–75.6%) n=1,005 |
| Population 65+ | 19.3% | 19.4% (10.8–33.6%) n=32,553 | 19.2% (11.7–31.1%) n=1,010 |
| Median age | 41.4 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (33.3–55.9) n=1,005 |
| Median household income | $99,138 | $72,070 ($46,039–$118,707) n=30,318 | $61,740 ($42,457–$95,231) n=948 |
| Median home value | $321,100 | $222,200 ($100,300–$579,820) n=30,049 | $174,150 ($91,880–$309,500) n=930 |
| Median gross rent | $1,374 | $1,021 ($677–$1,912) n=25,670 | $813 ($553–$1,265) n=786 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | MO median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 80.3 yr ± 0.58 | 78.9 yr (74.7–82.8) n=31,308 | 77.6 yr (74.6–81.0) n=995 |
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 0.58 years of 80.3, 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