ZIP code
83605
in Caldwell, IdahoPopulation 41,325
41.79/ 100
Ranked #25,398 of 32,066 US ZIPs (bottom 21%)
Ranked #257 of 268 Idaho ZIPs (bottom 4.2%)
Ranked #36 of 38 Boise City, ID ZIPs (bottom 5.3%)
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.
Mammography
59.4%
in the bottom 0.7% nationally
Higher is healthier
ST1stUS1stDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›Air-toxics cancer risk
51.7 per million
in the top 0.6% nationally
Lower is healthier
ST99thUS99thDefinition & 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 ›Arsenic in groundwater
29.3%
in the top 3.4% nationally
Lower is healthier
ST90thUS97thDefinition & 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 ›Outer-floodplain exposure
10.5%
in the top 3.7% nationally
Lower is healthier
ST98thUS96thDefinition & 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 ›Subsidized affordable housing
516 units
in the top 4.3% nationally
Higher is healthier
ST99thUS96thDefinition & source ›
The number of affordable rental units in this ZIP supported by the federal Low-Income Housing Tax Credit program.
Full methodology ›Uninsured (under 65)
18.6%
in the top 5.8% nationally
Lower is healthier
ST98thUS94thDefinition & source ›
The estimated share of adults aged 18–64 with no current health-insurance coverage.
Full methodology ›Colon-cancer screening
55.5%
in the bottom 5.4% nationally
Higher is healthier
ST3rdUS5thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Fine-particle (PM2.5) exceedance
1.9%
in the top 4.9% nationally
Lower is healthier
ST66thUS95thDefinition & 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 ›Nitrate in drinking water
0.82%
in the top 6.7% nationally
Lower is healthier
ST86thUS93rdDefinition & 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 ›Cognitive disability
20.5%
in the top 7.5% nationally
Lower is healthier
ST98thUS93rdDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›The read
By its overall health score, ZIP 83605, one of several in Caldwell, Idaho lands in the bottom 21% nationally (25,398th) and the bottom 4.2% of Idaho (257th).
The measures that press hardest set the tone here: modeled mammography registers in the bottom 0.7% nationally, and air-toxics cancer risk sits in the top 0.6% nationally. Modeled arsenic rests in the top 3.4% nationally, and outer-floodplain exposure is in the top 3.7% nationally. Modeled uninsured stands in the top 5.8% nationally, colon screening settles in the bottom 5.4% nationally, and fine-particle lies in the top 4.9% nationally. Modeled nitrate resides in the top 6.7% nationally. On the stronger side, subsidized affordable housing lands in the top 4.3% nationally. Distance to an emergency room registers at the national minimum, shared with about 11% of ZIPs.
Weighed against the ZIPs nearby, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. To translate a couple of terms, air-toxics cancer risk is a modeled EPA estimate of added lifetime cancer risk from breathing outdoor air, per million people. Arsenic is a natural groundwater contaminant, 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. Overall, the nearest healthier neighbor is ZIP 83607, 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 Boise City, ID 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 62%
21%
Healthcare Access
in the top 0.00%
5%
About typical
Social Need / SDOH
healthier than 53%
16%
Risk Behavior
healthier than 53%
11%
Holding it back
Environmental Hazard
healthier than 2%
14%
Preventive Care
healthier than 2%
13%
Mental Health
healthier than 37%
8%
Disability
healthier than 18%
7%
Climate / Disaster Risk
healthier than 28%
5%
Lifting this score
Chronic Disease Burden
healthier than 61%
21%
Healthcare Access
in the top 0.00%
5%
Holding it back
Social Need / SDOH
healthier than 31%
16%
Environmental Hazard
in the bottom 0.00%
14%
Preventive Care
in the bottom 0.00%
13%
Risk Behavior
healthier than 6%
11%
Mental Health
healthier than 13%
8%
Disability
healthier than 28%
7%
Climate / Disaster Risk
healthier than 4%
5%
Lifting this score
Healthcare Access
in the top 0.00%
5%
Holding it back
Chronic Disease Burden
healthier than 25%
21%
Social Need / SDOH
healthier than 17%
16%
Environmental Hazard
in the bottom 0.00%
14%
Preventive Care
in the bottom 0.00%
13%
Risk Behavior
in the bottom 0.00%
11%
Mental Health
healthier than 17%
8%
Disability
healthier than 4%
7%
Climate / Disaster Risk
healthier than 4%
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
4 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.
Below what income predicts
The ZIP codes that outlive their incomes
Estimated life expectancy is 77.5 ± 1.0 years. A median household income of $68,427 predicts 78.6 years — 1.0 years below.
Ranked #1,475 of the 5,842 ZIP codes this finding names, ordered by years above what income predicts, highest first.
Below its nearby ZIPs
The ZIP codes that outlive their neighbors
Estimated life expectancy is 77.5 ± 1.0 years. The 50 nearest ZIP codes with estimates average 79.9 years — 2.3 years below them.
Ranked #1,786 of the 3,687 ZIP codes this finding names, ordered by years above the nearby-ZIP average, highest first.
Heavy environment, light chronic burden
Where the environment and chronic illness point in opposite directions
Environmental-hazard standing 2.6 (bottom 10%); chronic-disease standing 61.8 — 59 points apart, heavier on the environment than it is on chronic illness.
Ranked #15,329 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 51.7 cases per million — among the tenth of compared ZIP codes with the most. Estimated life expectancy is 77.5 ± 1.0 years.
Ranked #95 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
83607
Idahoshares a border
Score 47.85
Closest healthier
83644
Idahoshares a border
Score 52.18
Similar health profile
98932
Washington97% similar profile
Score 40.77
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 | 25.1% | 22.8–27.5 |
| High blood pressure among adults | 31.7% | 29.0–34.6 |
| Cancer (non-skin) or melanoma among adults | 6.9% | 6.3–7.6 |
| Current asthma among adults | 11.1% | 9.9–12.4 |
| Coronary heart disease among adults | 6.4% | 5.8–7.1 |
| Chronic obstructive pulmonary disease among adults | 7.7% | 6.9–8.5 |
| Depression among adults | 23.5% | 20.8–26.5 |
| Diagnosed diabetes among adults | 12.7% | 11.2–14.3 |
| High cholesterol among adults who have ever been screened | 34.2% | 31.3–37.4 |
| Obesity among adults | 37.5% | 33.2–42.0 |
| Stroke among adults | 3.6% | 3.3–3.9 |
| All teeth lost among adults aged >=65 years | 20.7% | 17.6–24.2 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 18.6% | 16.5–21.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 68.2% | 65.3–71.1 |
| Visits to doctor for routine checkup within the past year among adults | 71.2% | 68.0–74.4 |
| Cholesterol screening among adults | 77.3% | 75.1–79.5 |
| Colorectal cancer screening among adults aged 45–75 years | 55.5% | 51.4–59.6 |
| Visited dentist or dental clinic in the past year among adults | 57.7% | 54.6–60.8 |
| Mammography use among women aged 50-74 years | 59.4% | 52.7–65.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 14.3% | 12.2–16.6 |
| Current cigarette smoking among adults | 14.3% | 12.6–16.2 |
| No leisure-time physical activity among adults | 29.9% | 26.5–33.4 |
| Short sleep duration among adults | 36.4% | 32.6–40.5 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 23.9% | 21.6–26.3 |
| Frequent mental distress among adults | 18.0% | 16.2–20.0 |
| Frequent physical distress among adults | 16.1% | 14.5–17.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 20.5% | 18.6–22.5 |
| Any disability among adults | 42.3% | 38.8–45.7 |
| Hearing disability among adults | 10.0% | 9.1–11.1 |
| Independent living disability among adults | 10.5% | 9.5–11.6 |
| Mobility disability among adults | 17.8% | 16.0–19.7 |
| Self-care disability among adults | 4.8% | 4.4–5.2 |
| Vision disability among adults | 7.2% | 6.6–7.8 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 21.9% | 19.2–24.7 |
| Food insecurity in the past 12 months among adults | 20.8% | 18.4–23.3 |
| Received food stamps in the past 12 months among adults | 15.0% | 13.0–17.0 |
| Housing insecurity in the past 12 months among adults | 15.6% | 13.6–17.5 |
| Lack of reliable transportation in the past 12 months among adults | 11.2% | 10.0–12.5 |
| Loneliness among adults | 30.7% | 27.2–34.2 |
| Utility services shut-off threat in the past 12 months among adults | 10.1% | 8.9–11.4 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | ID median (p10–p90) |
|---|---|---|---|
| Poverty rate | 12.4% | 10.6% (3.1–25.8%) n=32,364 | 9.9% (1.2–20.3%) n=275 |
| Uninsured 18–64 | 21.4% | 9.0% (1.5–24.3%) n=32,286 | 12.8% (0.0–25.9%) n=276 |
| No HS diploma (25+) | 19.9% | 7.9% (1.8–20.7%) n=32,505 | 6.9% (0.0–17.9%) n=275 |
| Bachelor's or higher (25+) | 15.1% | 23.3% (9.2–53.6%) n=32,505 | 22.1% (8.6–44.8%) n=275 |
| Unemployment rate (16+) | 6.1% | 3.9% (0.0–9.8%) n=32,274 | 2.5% (0.0–6.8%) n=274 |
| Households without a vehicle | 3.5% | 3.9% (0.0–12.5%) n=32,322 | 1.8% (0.0–6.5%) n=275 |
| Broadband subscription | 91.5% | 89.3% (75.1–97.1%) n=32,322 | 90.8% (79.9–100.0%) n=275 |
| Housing cost burden (≥30% income) | 32.1% | 23.7% (10.6–40.0%) n=32,322 | 22.5% (1.7–33.4%) n=275 |
| Homeownership rate | 69.2% | 78.7% (51.7–94.0%) n=32,322 | 80.7% (61.8–97.5%) n=275 |
| Crowded housing (>1 per room) | 7.6% | 1.3% (0.0–6.3%) n=32,322 | 1.8% (0.0–7.2%) n=275 |
| Foreign-born population | 14.9% | 2.6% (0.0–18.6%) n=32,553 | 2.6% (0.0–13.3%) n=277 |
| Single-parent households | 38.6% | 53.6% (37.3–74.1%) n=32,087 | 58.4% (44.1–86.8%) n=271 |
| Population 65+ | 11.2% | 19.4% (10.8–33.6%) n=32,553 | 20.6% (11.3–42.1%) n=277 |
| Median age | 32.4 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.5 yr (31.8–62.3) n=273 |
| Median household income | $68,427 | $72,070 ($46,039–$118,707) n=30,318 | $70,814 ($51,606–$96,415) n=252 |
| Median home value | $346,100 | $222,200 ($100,300–$579,820) n=30,049 | $344,400 ($224,720–$577,280) n=247 |
| Median gross rent | $1,124 | $1,021 ($677–$1,912) n=25,670 | $990 ($730–$1,495) n=192 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | ID median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 77.5 yr ± 0.53 | 78.9 yr (74.7–82.8) n=31,308 | 79.9 yr (76.8–83.5) n=278 |
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 0.53 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