ZIP code
95615
in Courtland, CaliforniaPopulation 918
48.98/ 100
Ranked #17,688 of 32,066 US ZIPs (bottom 45%)
Ranked #1,142 of 1,719 California ZIPs (bottom 34%)
Ranked #94 of 122 Sacramento-Roseville-Folsom, CA ZIPs (bottom 23%)
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.
Floodplain exposure
99.9%
in the top 0.07% nationally
Lower is healthier
ST99thUS99thDefinition & 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 ›Civic-institution access
1.3 per 1,000 residents
in the top 2.5% nationally
Higher is healthier
ST94thUS98thDefinition & source ›
The number of civic and social organizations 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 ›Crowded housing
13.1%
in the top 2.8% nationally
Lower is healthier
ST85thUS97thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
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 ›Dry extreme heat
74.8 days/year
in the top 5.5% nationally
Lower is healthier
ST80thUS95thDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
Full methodology ›Arsenic in groundwater
15.9%
in the top 9.3% nationally
Lower is healthier
ST87thUS91stDefinition & 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 ›Walkability
2.3 intersections/sq mi
in the bottom 9.4% nationally
Higher is healthier
ST10thUS9thDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Home broadband subscription
74.5%
in the bottom 9.5% nationally
Higher is healthier
ST5thUS9thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Housing-cost burden
17.6%
in the bottom 26% nationally
Lower is healthier
ST5thUS26thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›The read
By its overall health score, Courtland, California (ZIP 95615) lands in the bottom 45% nationally (17,688th) and the bottom 34% of California (1,142nd).
The burdens that read clearest in the data come first: floodplain exposure resides in the top 0.07% nationally, and crowded housing lands in the top 2.8% nationally. Modeled tree cover registers at the national minimum, and extreme heat sits in the top 5.5% nationally. Modeled arsenic rests in the top 9.3% nationally, walkability is in the bottom 9.4% nationally, and home broadband subscription stands in the bottom 9.5% nationally. Fiber broadband settles at the national minimum, shared with about 19% of ZIPs. Modeled fine-particle lies in the top 10.5% nationally. Better still, civic resides in the top 2.5% nationally.
To translate a couple of terms, 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. Floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". Overall, the nearest healthier neighbor is ZIP 95612, 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 Sacramento-Roseville-Folsom, CA 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 77%
21%
Risk Behavior
healthier than 72%
11%
Mental Health
healthier than 64%
8%
About typical
Environmental Hazard
healthier than 55%
14%
Disability
healthier than 45%
7%
Holding it back
Social Need / SDOH
healthier than 26%
16%
Preventive Care
healthier than 11%
13%
Climate / Disaster Risk
healthier than 1%
5%
Healthcare Access
healthier than 24%
5%
Lifting this score
Environmental Hazard
healthier than 76%
14%
About typical
Chronic Disease Burden
healthier than 43%
21%
Risk Behavior
healthier than 48%
11%
Mental Health
healthier than 59%
8%
Disability
healthier than 43%
7%
Holding it back
Social Need / SDOH
healthier than 31%
16%
Preventive Care
healthier than 30%
13%
Climate / Disaster Risk
healthier than 2%
5%
Healthcare Access
healthier than 16%
5%
Lifting this score
Environmental Hazard
in the top 0.00%
14%
Mental Health
healthier than 67%
8%
About typical
Chronic Disease Burden
healthier than 52%
21%
Holding it back
Social Need / SDOH
healthier than 11%
16%
Preventive Care
healthier than 16%
13%
Risk Behavior
healthier than 27%
11%
Disability
healthier than 27%
7%
Climate / Disaster Risk
healthier than 11%
5%
Healthcare Access
healthier than 16%
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
95612
Californiashares a border
Score 59.62
Closest healthier
95639
Californiashares a border
Score 49.13
Similar health profile
78661
Texas97% similar profile
Score 46.30
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 | 24.1% | 21.5–26.7 |
| High blood pressure among adults | 32.6% | 29.3–35.8 |
| Cancer (non-skin) or melanoma among adults | 7.3% | 6.6–8.1 |
| Current asthma among adults | 9.3% | 8.2–10.4 |
| Coronary heart disease among adults | 7.0% | 6.1–7.9 |
| Chronic obstructive pulmonary disease among adults | 6.1% | 5.2–7.3 |
| Depression among adults | 21.5% | 18.6–24.3 |
| Diagnosed diabetes among adults | 12.5% | 10.8–14.1 |
| High cholesterol among adults who have ever been screened | 35.7% | 32.2–39.1 |
| Obesity among adults | 32.4% | 27.5–37.5 |
| Stroke among adults | 3.5% | 3.1–3.9 |
| All teeth lost among adults aged >=65 years | 11.4% | 9.2–13.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 13.3% | 10.5–16.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 72.0% | 68.5–75.1 |
| Visits to doctor for routine checkup within the past year among adults | 69.3% | 65.6–72.7 |
| Cholesterol screening among adults | 85.4% | 83.3–87.5 |
| Colorectal cancer screening among adults aged 45–75 years | 59.1% | 54.5–63.4 |
| Visited dentist or dental clinic in the past year among adults | 62.1% | 58.8–65.1 |
| Mammography use among women aged 50-74 years | 70.9% | 64.0–77.2 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.2% | 12.8–17.8 |
| Current cigarette smoking among adults | 12.1% | 10.0–14.4 |
| No leisure-time physical activity among adults | 23.2% | 19.6–26.9 |
| Short sleep duration among adults | 36.2% | 32.0–40.3 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 24.9% | 21.7–28.3 |
| Frequent mental distress among adults | 16.4% | 14.5–18.4 |
| Frequent physical distress among adults | 15.0% | 13.2–16.9 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 15.2% | 13.2–17.3 |
| Any disability among adults | 32.9% | 29.0–36.8 |
| Hearing disability among adults | 7.3% | 6.4–8.2 |
| Independent living disability among adults | 8.4% | 7.3–9.6 |
| Mobility disability among adults | 15.6% | 13.5–17.9 |
| Self-care disability among adults | 4.4% | 3.9–5.1 |
| Vision disability among adults | 6.2% | 5.5–7.0 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 27.1% | 23.6–30.9 |
| Food insecurity in the past 12 months among adults | 17.5% | 14.3–20.7 |
| Received food stamps in the past 12 months among adults | 16.1% | 13.2–19.2 |
| Housing insecurity in the past 12 months among adults | 15.7% | 13.1–18.2 |
| Lack of reliable transportation in the past 12 months among adults | 9.6% | 8.2–11.0 |
| Loneliness among adults | 36.7% | 32.4–41.0 |
| Utility services shut-off threat in the past 12 months among adults | 8.0% | 6.8–9.3 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 6.4% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 4.6% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 9.5% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 44.5% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 3.2% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 7.3% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 74.5% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 17.6% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 55.6% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 13.1% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 30.4% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 60.5% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 26.4% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 54.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $73,406 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $729,400 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $1,032 | $1,021 ($677–$1,912) n=25,670 | $1,912 ($1,113–$2,923) n=1,461 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 82.2 yr ± 1.87 | 78.9 yr (74.7–82.8) n=31,308 | 80.5 yr (76.7–83.8) n=1,665 |
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 1.87 years of 82.2, 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