ZIP code
70401
in Hammond, LouisianaPopulation 21,221
39.65/ 100
Ranked #26,988 of 32,066 US ZIPs (bottom 16%)
Ranked #231 of 508 Louisiana ZIPs (top 45%)
Ranked #8 of 15 Hammond, LA ZIPs (bottom 47%)
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.
Arsenic in groundwater
0.66%
in the bottom 0.04% nationally
Lower is healthier
ST1stUS1stDefinition & 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 ›Loneliness
41%
in the top 2.8% nationally
Lower is healthier
ST94thUS97thDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Humid extreme heat
151.3 days/year
in the top 4.4% nationally
Lower is healthier
ST86thUS96thDefinition & 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 ›Cognitive disability
21.2%
in the top 5.5% nationally
Lower is healthier
ST74thUS95thDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›Outer-floodplain exposure
7.3%
in the top 5.2% nationally
Lower is healthier
ST81stUS95thDefinition & 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 ›Grocery access
0.24 per 1,000 residents
in the top 5.4% nationally
Higher is healthier
ST92ndUS95thDefinition & source ›
The number of full supermarkets 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. ZipVitals’s food-access signal is derived from these in-ZIP densities — it is not USDA’s food-desert designation, which measures distance to the nearest supermarket. Where a leg is missing, a ZIP reads “not determinable,” never “not a food desert.”
Full methodology ›Floodplain exposure
42.2%
in the top 5.7% nationally
Lower is healthier
ST59thUS94thDefinition & 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 ›Utility shut-off threat
15.4%
in the top 6.5% nationally
Lower is healthier
ST73rdUS94thDefinition & source ›
The estimated share of adults whose household was threatened with a utility shut-off in the past 12 months.
Full methodology ›Lack of transportation
14.8%
in the top 6.7% nationally
Lower is healthier
ST80thUS93rdDefinition & source ›
The estimated share of adults who lacked reliable transportation in the past 12 months.
Full methodology ›Pharmacy access
0.43 per 1,000 residents
in the top 7.1% nationally
Higher is healthier
ST90thUS93rdDefinition & source ›
The number of pharmacies 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 ›Cross-source signals
Combined exposures in this ZIP
More than one environmental exposure stands out in this ZIP. Each is established independently and shown on its own above; they are grouped here for context — not because one causes the other.
This area ranks among the highest 10% of US ZIP codes for both humid-heat days and flood exposure.
See the full flooding, evacuation & humid-heat analysis →
The read
Overall, ZIP 70401, one of several in Hammond, Louisiana places in the bottom 16% nationally (26,988th) and the top 45% of Louisiana (231st).
The measures fall on both sides for this area, fairly evenly: modeled arsenic lands in the bottom 0.04% nationally, and grocery stands in the top 5.4% nationally. Pharmacy registers in the top 7.1% nationally. Pulling the other way, modeled loneliness settles in the top 2.8% nationally, humid heat sits in the top 4.4% nationally, and cognitive disability lies in the top 5.5% nationally. Outer-floodplain exposure rests in the top 5.2% nationally, floodplain exposure resides in the top 5.7% nationally, and modeled utility shutoff is in the top 6.5% nationally. Modeled transportation lands in the top 6.7% nationally.
Beside the areas that surround it, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. For readers new to these terms, arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Humid heat is a modeled heat-stress measure combining temperature, humidity, sun, and wind to gauge heat on the body outdoors. Outer-floodplain exposure is land with a lower but real 1-in-500 chance of flooding each year, nicknamed the "500-year floodplain". Among nearby ZIPs, the nearest healthier one overall is ZIP 70402, 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 Hammond, LA metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Healthcare Access
healthier than 76%
5%
About typical
Chronic Disease Burden
healthier than 45%
21%
Environmental Hazard
healthier than 46%
14%
Holding it back
Social Need / SDOH
healthier than 16%
16%
Preventive Care
healthier than 36%
13%
Risk Behavior
healthier than 9%
11%
Mental Health
healthier than 6%
8%
Disability
healthier than 18%
7%
Climate / Disaster Risk
healthier than 5%
5%
Lifting this score
Chronic Disease Burden
healthier than 71%
21%
Healthcare Access
healthier than 68%
5%
About typical
Social Need / SDOH
healthier than 47%
16%
Risk Behavior
healthier than 48%
11%
Disability
healthier than 54%
7%
Climate / Disaster Risk
healthier than 43%
5%
Holding it back
Environmental Hazard
healthier than 28%
14%
Preventive Care
healthier than 16%
13%
Mental Health
healthier than 23%
8%
Lifting this score
Chronic Disease Burden
healthier than 79%
21%
Social Need / SDOH
healthier than 64%
16%
Risk Behavior
healthier than 64%
11%
Disability
healthier than 64%
7%
Healthcare Access
healthier than 79%
5%
Holding it back
Environmental Hazard
healthier than 14%
14%
Preventive Care
healthier than 21%
13%
Mental Health
healthier than 21%
8%
Climate / Disaster Risk
healthier than 21%
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 74.9 ± 1.2 years. A median household income of $50,653 predicts 77.4 years — 2.5 years below.
Ranked #3,466 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
70402
Louisianashares a border
Score 51.28
Closest healthier
70446
Louisianashares a border
Score 51.83
Similar health profile
70043
Louisiana99% similar profile
Score 37.24
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 | 27.3% | 24.5–30.0 |
| High blood pressure among adults | 39.2% | 35.5–42.8 |
| Cancer (non-skin) or melanoma among adults | 6.1% | 5.5–6.7 |
| Current asthma among adults | 11.0% | 9.8–12.4 |
| Coronary heart disease among adults | 6.9% | 6.2–7.5 |
| Chronic obstructive pulmonary disease among adults | 8.5% | 7.6–9.3 |
| Depression among adults | 26.9% | 23.4–30.5 |
| Diagnosed diabetes among adults | 14.3% | 12.7–16.1 |
| High cholesterol among adults who have ever been screened | 34.7% | 31.1–38.3 |
| Obesity among adults | 43.4% | 37.2–49.6 |
| Stroke among adults | 4.0% | 3.7–4.3 |
| All teeth lost among adults aged >=65 years | 21.0% | 17.5–24.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 10.0% | 8.6–11.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 74.7% | 72.1–77.1 |
| Visits to doctor for routine checkup within the past year among adults | 80.1% | 76.8–83.0 |
| Cholesterol screening among adults | 82.5% | 80.4–84.4 |
| Colorectal cancer screening among adults aged 45–75 years | 66.4% | 61.4–70.9 |
| Visited dentist or dental clinic in the past year among adults | 53.7% | 49.9–57.4 |
| Mammography use among women aged 50-74 years | 77.8% | 70.7–83.7 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 18.4% | 15.4–21.5 |
| Current cigarette smoking among adults | 18.3% | 16.0–20.5 |
| No leisure-time physical activity among adults | 30.8% | 26.9–35.0 |
| Short sleep duration among adults | 39.7% | 34.0–45.4 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 26.0% | 23.2–28.8 |
| Frequent mental distress among adults | 22.2% | 20.0–24.6 |
| Frequent physical distress among adults | 15.3% | 13.6–17.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 21.2% | 19.1–23.5 |
| Any disability among adults | 40.1% | 36.0–44.3 |
| Hearing disability among adults | 7.2% | 6.4–8.0 |
| Independent living disability among adults | 11.9% | 10.7–13.1 |
| Mobility disability among adults | 17.4% | 15.5–19.4 |
| Self-care disability among adults | 5.4% | 5.0–5.8 |
| Vision disability among adults | 7.5% | 6.9–8.1 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 29.9% | 26.1–33.6 |
| Food insecurity in the past 12 months among adults | 27.6% | 24.5–30.5 |
| Received food stamps in the past 12 months among adults | 24.8% | 22.1–27.5 |
| Housing insecurity in the past 12 months among adults | 20.5% | 18.1–22.9 |
| Lack of reliable transportation in the past 12 months among adults | 14.8% | 13.1–16.3 |
| Loneliness among adults | 41.0% | 36.0–45.8 |
| Utility services shut-off threat in the past 12 months among adults | 15.4% | 13.6–17.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | LA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 23.6% | 10.6% (3.1–25.8%) n=32,364 | 17.8% (6.0–36.8%) n=504 |
| Uninsured 18–64 | 9.7% | 9.0% (1.5–24.3%) n=32,286 | 10.4% (2.9–20.5%) n=505 |
| No HS diploma (25+) | 13.1% | 7.9% (1.8–20.7%) n=32,505 | 14.0% (4.3–26.4%) n=508 |
| Bachelor's or higher (25+) | 27.8% | 23.3% (9.2–53.6%) n=32,505 | 16.6% (5.9–37.1%) n=508 |
| Unemployment rate (16+) | 4.6% | 3.9% (0.0–9.8%) n=32,274 | 5.5% (0.0–13.6%) n=501 |
| Households without a vehicle | 7.0% | 3.9% (0.0–12.5%) n=32,322 | 6.0% (0.0–15.0%) n=504 |
| Broadband subscription | 93.6% | 89.3% (75.1–97.1%) n=32,322 | 84.4% (64.1–94.5%) n=504 |
| Housing cost burden (≥30% income) | 41.3% | 23.7% (10.6–40.0%) n=32,322 | 23.1% (9.3–41.8%) n=504 |
| Homeownership rate | 45.9% | 78.7% (51.7–94.0%) n=32,322 | 77.4% (50.9–92.7%) n=504 |
| Crowded housing (>1 per room) | 2.9% | 1.3% (0.0–6.3%) n=32,322 | 1.5% (0.0–4.8%) n=504 |
| Foreign-born population | 2.4% | 2.6% (0.0–18.6%) n=32,553 | 1.2% (0.0–7.6%) n=508 |
| Single-parent households | 40.9% | 53.6% (37.3–74.1%) n=32,087 | 48.0% (29.6–65.8%) n=495 |
| Population 65+ | 11.6% | 19.4% (10.8–33.6%) n=32,553 | 17.3% (10.2–29.0%) n=508 |
| Median age | 29.9 yr | 42.2 yr (33.0–56.3) n=32,292 | 39.6 yr (33.0–52.4) n=500 |
| Median household income | $50,653 | $72,070 ($46,039–$118,707) n=30,318 | $56,458 ($34,647–$88,928) n=457 |
| Median home value | $211,000 | $222,200 ($100,300–$579,820) n=30,049 | $163,450 ($86,100–$284,620) n=452 |
| Median gross rent | $1,021 | $1,021 ($677–$1,912) n=25,670 | $915 ($606–$1,325) n=389 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | LA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 74.9 yr ± 0.60 | 78.9 yr (74.7–82.8) n=31,308 | 75.9 yr (73.2–79.0) n=494 |
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 0.60 years of 74.9, 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