ZIP code
73556
in Martha, OklahomaPopulation 134
44.08/ 100
Ranked #23,342 of 32,066 US ZIPs (bottom 27%)
Ranked #167 of 634 Oklahoma ZIPs (top 26%)
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
100%
at the national maximum
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 ›Industrial-pollution burden
in the bottom 1.7% nationally
Lower is healthier
ST2ndUS2ndDefinition & source ›
The EPA’s modeled screening score for industrial chemical releases, weighting the amounts released by their toxicity and how many people live nearby — a relative comparison score, not a measured exposure.
Full methodology ›Transportation noise
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & 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 ›Expected annual disaster loss
$0
in the bottom 2.6% nationally
Lower is healthier
ST1stUS3rdDefinition & 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 ›Floodplain exposure
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & 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 ›PFAS in drinking water
73.1%
in the top 3.6% nationally
Lower is healthier
ST98thUS96thDefinition & 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 ›Natural-disaster risk
in the bottom 3.7% nationally
Lower is healthier
ST2ndUS4thDefinition & 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 ›Dry extreme heat
85.8 days/year
in the top 4.0% nationally
Lower is healthier
ST97thUS96thDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
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 ›Distance to a Superfund site
68.6 mi
in the top 6.8% nationally
Higher is healthier
ST90thUS93rdDefinition & 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
Martha, Oklahoma (ZIP 73556), on the composite measure, lands in the bottom 27% nationally (23,342nd) and the top 26% of Oklahoma (167th).
Where this area is stretched, the data is unambiguous: modeled nitrate is at the national maximum, pfas rests in the top 3.6% nationally, and extreme heat sits in the top 4.0% nationally. Modeled tree cover registers at the national minimum. Better still, modeled industrial-pollution burden lands in the bottom 1.7% nationally, and transportation noise resides at the national minimum. Modeled expected annual loss lies in the bottom 2.6% nationally, and floodplain exposure settles at the national minimum. Modeled disaster risk stands in the bottom 3.7% nationally, and distance to a Superfund site is in the top 6.8% nationally.
Set against the neighboring ZIPs, walkability runs far higher than the surrounding ZIPs on this measure. In everyday language, nitrate is a groundwater compound from fertilizer, manure, and sewage, here a modeled estimate of the chance private-well levels exceed a benchmark. Industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. Expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. A healthier neighbor overall sits at ZIP 73526, about 1.4 miles away.
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 64%
21%
About typical
Environmental Hazard
healthier than 60%
14%
Holding it back
Social Need / SDOH
healthier than 17%
16%
Preventive Care
healthier than 11%
13%
Risk Behavior
healthier than 15%
11%
Mental Health
healthier than 26%
8%
Disability
healthier than 34%
7%
Climate / Disaster Risk
healthier than 21%
5%
Healthcare Access
healthier than 26%
5%
Lifting this score
Chronic Disease Burden
healthier than 87%
21%
Environmental Hazard
healthier than 72%
14%
Disability
healthier than 76%
7%
Climate / Disaster Risk
healthier than 66%
5%
About typical
Mental Health
healthier than 54%
8%
Holding it back
Social Need / SDOH
healthier than 32%
16%
Preventive Care
healthier than 18%
13%
Risk Behavior
healthier than 26%
11%
Healthcare Access
healthier than 29%
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
73521
Oklahomashares a border
Score 41.63
Closest healthier
73526
Oklahomaabout 1.4 mi away
Score 47.53
Similar health profile
74463
Oklahoma97% similar profile
Score 39.93
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 | 23.7% | 20.9–26.8 |
| High blood pressure among adults | 36.1% | 32.2–40.2 |
| Cancer (non-skin) or melanoma among adults | 6.1% | 5.4–6.8 |
| Current asthma among adults | 10.9% | 9.6–12.3 |
| Coronary heart disease among adults | 6.5% | 5.7–7.5 |
| Chronic obstructive pulmonary disease among adults | 6.8% | 5.6–8.2 |
| Depression among adults | 25.0% | 21.4–29.0 |
| Diagnosed diabetes among adults | 12.9% | 11.1–14.8 |
| High cholesterol among adults who have ever been screened | 36.8% | 32.7–41.2 |
| Obesity among adults | 39.9% | 32.4–47.8 |
| Stroke among adults | 3.2% | 2.8–3.7 |
| All teeth lost among adults aged >=65 years | 16.4% | 12.9–20.1 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 13.7% | 11.0–16.8 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 73.4% | 70.2–76.4 |
| Visits to doctor for routine checkup within the past year among adults | 75.4% | 71.4–79.3 |
| Cholesterol screening among adults | 81.4% | 78.2–84.2 |
| Colorectal cancer screening among adults aged 45–75 years | 60.6% | 54.3–66.0 |
| Visited dentist or dental clinic in the past year among adults | 55.6% | 51.3–59.4 |
| Mammography use among women aged 50-74 years | 70.0% | 60.5–77.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.7% | 12.8–18.9 |
| Current cigarette smoking among adults | 15.7% | 12.9–19.2 |
| No leisure-time physical activity among adults | 33.3% | 27.9–39.3 |
| Short sleep duration among adults | 41.6% | 34.2–48.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 21.8% | 18.3–25.8 |
| Frequent mental distress among adults | 18.4% | 16.1–20.9 |
| Frequent physical distress among adults | 14.5% | 12.4–16.7 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 18.6% | 15.8–21.6 |
| Any disability among adults | 38.8% | 33.6–44.6 |
| Hearing disability among adults | 8.2% | 7.2–9.4 |
| Independent living disability among adults | 9.2% | 7.8–10.9 |
| Mobility disability among adults | 15.5% | 13.0–18.3 |
| Self-care disability among adults | 4.3% | 3.6–5.1 |
| Vision disability among adults | 6.3% | 5.4–7.3 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 25.5% | 21.3–29.9 |
| Food insecurity in the past 12 months among adults | 19.4% | 15.5–23.2 |
| Received food stamps in the past 12 months among adults | 14.0% | 10.9–17.3 |
| Housing insecurity in the past 12 months among adults | 14.7% | 12.3–17.4 |
| Lack of reliable transportation in the past 12 months among adults | 9.8% | 8.3–11.5 |
| Loneliness among adults | 33.5% | 28.2–38.9 |
| Utility services shut-off threat in the past 12 months among adults | 10.1% | 8.6–11.7 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | OK median (p10–p90) |
|---|---|---|---|
| Poverty rate | 29.9% | 10.6% (3.1–25.8%) n=32,364 | 16.3% (6.5–26.1%) n=643 |
| Uninsured 18–64 | 25.0% | 9.0% (1.5–24.3%) n=32,286 | 19.4% (9.5–30.7%) n=643 |
| No HS diploma (25+) | 19.8% | 7.9% (1.8–20.7%) n=32,505 | 10.9% (4.8–18.9%) n=644 |
| Bachelor's or higher (25+) | 12.5% | 23.3% (9.2–53.6%) n=32,505 | 18.4% (9.0–38.4%) n=644 |
| Unemployment rate (16+) | 6.8% | 3.9% (0.0–9.8%) n=32,274 | 4.3% (0.4–8.8%) n=643 |
| Households without a vehicle | 6.1% | 3.9% (0.0–12.5%) n=32,322 | 3.6% (0.0–9.0%) n=643 |
| Broadband subscription | 89.8% | 89.3% (75.1–97.1%) n=32,322 | 85.4% (70.2–95.0%) n=643 |
| Housing cost burden (≥30% income) | 18.4% | 23.7% (10.6–40.0%) n=32,322 | 20.0% (9.5–31.0%) n=643 |
| Homeownership rate | 69.4% | 78.7% (51.7–94.0%) n=32,322 | 78.2% (56.5–91.0%) n=643 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 2.3% (0.0–6.1%) n=643 |
| Foreign-born population | 14.2% | 2.6% (0.0–18.6%) n=32,553 | 1.9% (0.0–9.3%) n=645 |
| Single-parent households | 61.3% | 53.6% (37.3–74.1%) n=32,087 | 51.7% (39.5–66.1%) n=640 |
| Population 65+ | 10.4% | 19.4% (10.8–33.6%) n=32,553 | 18.4% (11.9–29.5%) n=645 |
| Median age | 44.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.3 yr (33.1–52.0) n=642 |
| Median household income | $64,375 | $72,070 ($46,039–$118,707) n=30,318 | $58,728 ($43,042–$88,542) n=616 |
| Median home value | $107,100 | $222,200 ($100,300–$579,820) n=30,049 | $142,200 ($83,960–$248,900) n=615 |
| Median gross rent | $625 | $1,021 ($677–$1,912) n=25,670 | $839 ($628–$1,136) n=546 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | OK median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 78.9 yr ± 2.28 | 78.9 yr (74.7–82.8) n=31,308 | 77.2 yr (73.6–81.3) n=638 |
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 2.28 years of 78.9, 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