County profile
De Witt County, Illinois Community Health Profile
Environmental risk, disease burden, provider access, and SDOH scores for community health needs assessment and service line planning. Fused from EPA, CDC, CMS, and Census data into a single free view.
Opportunity Score
Env
35
−15 vs U.S. mean
Disease
45
−5 vs U.S. mean
Provider
19
−31 vs U.S. mean
SDOH
40
−10 vs U.S. mean
Specific health risk patterns
De Witt County, IL: 1 specific risk pattern triggered
Each pattern below combines a specific environmental exposure with a population that is more vulnerable to that exposure. When both are present at meaningful levels in De Witt County, the pattern triggers. These are the most concrete data points for documenting a significant health need in a Community Health Needs Assessment and for planning where services or community investment would land hardest.
Internally, we call these “Compound Signals.” Each is a versioned, weighted composite scored against the national distribution. The full formula and citations live on the methodology page.
44 dialysis-dependent Medicare beneficiaries (11.52 per 1k).
Extreme heat exposure × Dialysis-dependent population
Defend this finding — full lineage to source data3 sources cited
Heat-Dialysis VulnerabilityDe Witt County: 70/100 (elevated above the 70th-percentile threshold)
De Witt County: 70/100 (elevated above the 70th-percentile threshold)
Extreme heat × dialysis-dependent Medicare beneficiaries × chronic kidney disease prevalence. Anchored on Taiwan NHIRD findings of 5.3× CKD heat-hospitalization rate, 9× ESRD heat-stroke mortality.
Methodology. Dialysis patients are uniquely heat-vulnerable: missed dialysis sessions during heat-related power loss or transport disruption cause electrolyte cascades within hours. The Taiwan NHIRD analysis (NHIRD = National Health Insurance Research Database) is the strongest population-level evidence we have for the magnitude of the effect.
Threshold. Elevated when score ≥ 70th national percentile across all US counties evaluated for this signal
Peer set. All US counties evaluated for the signal (~3,222, less coverage gaps)
Evidence base
- · Lin Y-K et al. 'Extreme heat and ESRD heat-stroke mortality.' Taiwan NHIRD analysis.
- · Remigio RV et al. 'Association of extreme heat events with hospital admission or mortality among patients with end-stage renal disease.' JAMA Network Open 2019.
Components (3)
85.2 °F
Mean of the daily maximum temperature across the meteorological summer (June–August).
NOAA — Applied Climate Information System (ACIS) — RCC-ACIS
Vintage: Multi-year mean (2018–2023 typical) · Refresh: Monthly · Lag: Current year
How it's measured. NOAA ACIS aggregates GHCN-Daily station observations to county-level summer (JJA) daily-max means using inverse-distance weighting. Smooths year-to-year noise; captures the structural heat profile.
Coverage. All 3,222 US counties
11.5 per 1,000 Medicare benes
Rate of Medicare beneficiaries on at-home or in-center dialysis per 1,000 county Medicare beneficiaries.
HHS / ASPR — emPOWER Map — Medicare beneficiary DME data
Vintage: Current month · Refresh: Monthly · Lag: Same month
How it's measured. HHS ASPR derives dialysis-dependent counts from Medicare claims for ESRD-related at-home or in-center service codes, aggregated to county. Reported per 1,000 county Medicare beneficiaries to normalize for size.
Caveat. emPOWER masks counts of 1–10 to the literal value 11 for beneficiary privacy. Per-1k rates derived from masked counts respect the same floor — a small county showing exactly 11 beneficiaries may have anywhere from 1 to 11 actual.
Coverage. All 3,222 US counties (subject to the 1–10 mask)
Percent of adults age 18+ self-reporting chronic kidney disease diagnosis.
CDC — PLACES — Local Data for Better Health
Vintage: PLACES 2022–2023 · Refresh: Monthly · Lag: 1–2 years
How it's measured. PLACES small-area estimation from BRFSS self-report. CKD self-report substantially undercounts true prevalence (most CKD is asymptomatic until late stages).
Coverage. All 3,222 US counties
1 signal near threshold: Industrial Burden (54)
8 signals evaluated. See all signal methodologies →
Where De Witt County stands
Health risks here sit near national averages
De Witt County, Illinois sits near the middle of the national distribution on all four major health-risk areas. Pollution exposure, chronic disease rates, doctor access, and social and economic conditions are all within a typical range for U.S. counties — none stand out as the dominant concern. For comparison and trend purposes, this is the kind of community that helps anchor what a typical national profile looks like across all four dimensions.
Methodology: when three or more of the four major health-risk areas (pollution, chronic disease, doctor access, social and economic conditions) score above the 70th national percentile, we call the pattern “multi-pillar convergence.” The scoring approach and citations live on the methodology page.
Risk profile
De Witt County compared to Illinois and the U.S. average
Four health-risk scores on a 0-100 scale, where 50 is the U.S. average. A higher score means that area is a stronger contributor to community health risk.
Environmental Risk (35), Disease Burden (45), Provider Gap (19), and SDOH Stress (40) are at or better than the U.S. average.
- De Witt County
- Illinois state mean
- U.S. mean (50)
- Signal threshold (70)
Current Conditions
Today's air quality, fires, and weather alerts
Live operational data for De Witt County: real-time AQI from EPA AirNow, active fires from NIFC, and any National Weather Service advisories. Updated daily.
Environmental Factors
Air, water, and exposure indicators
Top environmental indicators for De Witt County with state and national benchmarks. Full profile covers 40+ metrics on the platform.
| Indicator | De Witt County | IL avg | US avg |
|---|---|---|---|
PM2.5 (annual mean) EPA AQS / EJSCREEN | 8.4 µg/m³ -0.9% vs IL | 8.5 | 7.4 |
Ozone EPA AQS / EJSCREEN | 65.0 ppb ▲ +3.0% vs IL | 63.1 | 57.1 |
Traffic Proximity EJSCREEN | 129,223 index ▼ -53% vs IL | 275,878 | 291,320 |
Superfund Proximity EPA EJSCREEN | 0.00 score ▼ -100% vs IL | 0.13 | 0.16 |
Drinking Water Violations EPA EJSCREEN | 0.00 score ▼ -100% vs IL | 0.53 | 3.39 |
Wildfire-Attributable Air Quality
Smoke PM2.5 the EPA doesn't count
Stanford peer-reviewed wildfire-attributable PM2.5 for De Witt County. The EPA classifies wildfire smoke as "exceptional events" and excludes it from official AQS monitoring; Childs/Burke fills that gap with daily county-level data.
Source: Childs et al, Environmental Science & Technology 2022 (Harvard Dataverse 10.7910/DVN/DJVMTV). Latest year shipped: 2020. Burke et al, Nature 2023 estimate that the EPA AQS network undercounts wildfire-attributable PM2.5 by 10–30% in fire-affected counties. Coverage is CONUS only. Full methodology →
Outage Burden
When the grid goes dark
DOE/ORNL EAGLE-I customer-hours-out for De Witt County in 2024. The fraction is population-normalized via the Maximum Customer Count denominator (Brelsford et al, Sci Data 2024) so it's directly comparable across counties of any size.
Source: DOE/ORNL EAGLE-I (figshare 10.6084/m9.figshare.24237376). Latest year shipped: 2024. Coverage: 3,050 of 3,222 US counties; AK and some sparsely-served rural counties may have no data. Full methodology →
Severe Weather History
Recorded storm events and damages
NOAA NCEI Storm Events Database for De Witt County, 2010–2026. Cumulative + last 5 years of recorded weather events with deaths, injuries, and damages.
Source: NOAA NCEI Storm Events Database (full history rollup). NOAA buckets ~50 raw event_type strings into 8 health-relevant categories. Coverage: 3,107 of 3,222 US counties; the absent are typically Alaska boroughs and territories where NOAA codes events as forecast zones rather than counties. Full methodology →
Concentrated Animal Feeding Operations
Livestock density and federal-permit confidence
USDA Census of Agriculture (vintage 2022) animal-unit totals for De Witt County, normalized to land area and ranked nationally. Animal Units (AU) follow the EPA federal definition under 40 CFR §122.23.
Source: USDA Census of Agriculture 2022 (head counts) + EPA 40 CFR §122.23 (animal-unit conversion). The CAFO composite deliberately omits NPDES facility counts because federal coverage averages ~32% nationally per EPA-IG and is heavily state-skewed — adding it as a numerator would systematically bias the index toward delegated states. Full methodology →
Pesticide Use
USGS Pesticide National Synthesis
Annual pesticide application rollup for De Witt County from the USGS Pesticide National Synthesis Project. Most recent year on file: 2019. Mass figures use the EPest_HIGH estimate (the conservative-against-undercounting framing); EPest_LOW is also retained on the underlying data.
- 1.GLYPHOSATE111.5K kg
- 2.ATRAZINE46.4K kg
- 3.METOLACHLOR & METOLACHLOR-S44.9K kg
- 4.METOLACHLOR-S41.8K kg
- 5.DICAMBA18.4K kg
Source: USGS Pesticide National Synthesis Project (2019). USGS PNSP nationally; year 2019 is preliminary; 2018 unavailable; 2020+ not released. Update reliability medium-low. Full methodology →
Health Outcomes
Chronic disease prevalence
CDC PLACES model-based prevalence estimates for adults in De Witt County. Full profile covers 15+ health outcomes plus mortality on the platform.
| Condition | De Witt County | IL avg | US avg |
|---|---|---|---|
Current Asthma % of adults with current asthma | 10.4% +0.1% vs IL | 10.4% | 10.6% |
COPD % of adults with diagnosed COPD | 8.4% -0.1% vs IL | 8.4% | 8.6% |
Diabetes % of adults with diagnosed diabetes | 12.2% ▼ -3.1% vs IL | 12.6% | 13.7% |
Coronary Heart Disease % of adults with CHD | 7.3% -1.5% vs IL | 7.4% | 7.9% |
Depression % of adults ever diagnosed with depression | 22.5% +1.7% vs IL | 22.1% | 23.1% |
Frequent Mental Distress % of adults with 14+ poor mental health days/month | 17.0% -0.0% vs IL | 17.0% | 17.2% |
Vulnerable Medicare Population
Who needs the grid to stay alive
Medicare beneficiaries in De Witt County who depend on electricity for dialysis, oxygen, or other powered medical equipment. From the HHS emPOWER program, which CMS publishes monthly so emergency managers know who to find first when the power goes out.
| Population | Count | Per 1,000 Medicare |
|---|---|---|
Total Medicare beneficiaries Denominator | 3,819 | — |
Electricity-dependent (any DME) Ventilators, oxygen concentrators, IV pumps, motorized wheelchairs | 207 | 54.2 -1.3% vs IL |
Dialysis-dependent ESRD beneficiaries needing in-center or home dialysis | 44 | 11.52 ▲ +181% vs IL |
Oxygen-dependent Home oxygen concentrators (outage-vulnerable) | 93 | 24.4 ▲ +18% vs IL |
Source: HHS emPOWER Map (ArcGIS county layer), May 2026. Counts of 1–10 are masked as “≤10” per HHS privacy rules; per-1,000 rates are derived and still respect the privacy floor. Full methodology →
Provider Supply
Specialty physician density per 100,000 residents
Active providers in De Witt County from the CMS National Plan and Provider Enumeration System (NPPES). Compared to the U.S. average for each specialty. Adjacency adjustment is applied separately in the Provider Gap pillar score.
| Specialty | De Witt County | US avg |
|---|---|---|
Primary Care Family medicine, internal medicine, general practice, pediatrics. | 148.8 per 100k ▲ +14% vs US | 130.4 |
Cardiology Cardiovascular disease, electrophysiology, interventional cardiology. | 12.9 per 100k ▲ +7.2% vs US | 12.1 |
Pulmonology Respiratory disease specialists — relevant to PM2.5 and wildfire smoke exposure. | 6.5 per 100k ▲ +7.3% vs US | 6.0 |
Psychiatry Mental health prescribers; complements behavioral health access. | 19.4 per 100k ▲ +3.9% vs US | 18.7 |
Oncology / Hematology Cancer specialists. | 6.5 per 100k +0.9% vs US | 6.4 |
Neurology Neurological disease specialists. | 6.5 per 100k ▼ -18% vs US | 7.9 |
Source: CMS National Plan and Provider Enumeration System (NPPES). Counts reflect providers with a primary practice address in De Witt County; specialty is taken from the provider's primary NUCC taxonomy code.
Pro analytical view
What drives this county's scores
The flagged signals and service-line opportunities for De Witt County, plus the methodology decomposition behind each score. Visible to Pro, Consultant Studio, and Enterprise tiers.
Where to focus
Pro feature
Top flagged signals + service lines are a Pro feature
See how each signal's components blend into its final score, and which signals + service lines this county should prioritize. Available on Professional, Consultant Studio, and Enterprise.
Score decomposition
Each named signal's component breakdown with weights. The bar length is the component's percentile rank; the parenthetical is its weight in the final blend.
Pro feature
Score decomposition is a Pro feature
See how each signal's components blend into its final score, and which signals + service lines this county should prioritize. Available on Professional, Consultant Studio, and Enterprise.
Tract drill-down
Census tracts inside De Witt County
Pro feature
Tract-level drill-down is a Pro feature
See how each signal's components blend into its final score, and which signals + service lines this county should prioritize. Available on Professional, Consultant Studio, and Enterprise.
On the full platform
What else is available for De Witt County
The page above is a subset. The free Community account unlocks the full single-county profile: every indicator, every data source, demographics, historical trends, and mortality data. Professional unlocks multi-county comparison, compound signal analysis, service line rankings, and consultant-ready PDF reports.
Full Environmental Profile
All 40+ environmental metrics including toxic releases, hazardous site proximity, PFAS detection, pesticide exposure, and climate stress indicators.
Service Line Opportunities
See how De Witt County ranks for respiratory, oncology, cardiovascular, renal, endocrine, and behavioral health service line opportunity.
Multi-County Comparison
Compare De Witt County side-by-side with neighboring counties across every dimension.
Trend Analysis
5-year sparklines for health outcomes, SDOH measures, and mortality rates so you can see where the county is heading, not just where it is today.
PDF Report Export
Generate a consultant-ready environmental health briefing for De Witt County with methodology citations. Drops straight into a CHNA or grant application.
Nearby Counties
Counties bordering De Witt County
Adjacent county profiles with their own scores and environmental health data. Source: Census Bureau County Adjacency File.
Data sources: EPA AQS, EPA EJSCREEN, EPA TRI, CDC PLACES, CDC WONDER, CMS NPPES, Census ACS, County Health Rankings, NOAA ACIS, NCI State Cancer Profiles. Every score on this page is derived from publicly available federal data, fused by the Banana Analytics pipeline.
Methodology: See the full scoring methodology (v1.2.0) for weights, sensitivity analysis, and validation against county-level mortality data.
Last refreshed: May 28, 2026