Population & age
- Total population
- 832
- Median age
- 38.1
Ellsworth, MN (56129)
Nobles County · Population 832
Fresh.Data current as of Apr 24, 2026
Ellsworth, MN (ZIP 56129) sits in Nobles County. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Health Insurance comes in below the national average at 7.9%. NCES lists 2 schools serving the area, 2 non-charter. 1 college or university serves the area. IRS data shows average household income (AGI) of $76,726, well above the ~$45K national average per return. FDIC counts just 1 bank branch in this ZIP (Summary of Deposits, 2024) — residents likely lean on neighboring ZIPs or online banking for most services. FEMA has issued 21 federal disaster declarations affecting this ZIP since 1969 — a high-frequency exposure profile. 29.5% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. Minnesota levies a graduated state income tax (top rate 9.85%); a household at the local median AGI of $76,726 would pay roughly $4,535/year before deductions. IRS migration data (2022-2023) shows a net loss of 453 residents (264 households) — the ZIP's primary county is shrinking. Healthcare access is the area's quieter strength; school options sit on the lighter side, so families may find themselves looking at districts a few ZIPs over. Notable: median household income $62,656, fair market rent of $970 for a two-bedroom, and a low 3.8% poverty rate. Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
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Demographics
Race & ethnicity
- White
- 97.1%
- Black
- 0.0%
- Asian
- 1.4%
- Hispanic / Latino
- 4.0%
- Other / multi-racial
- 1.4%
Income & housing
- Median household income
- $62,656
- Median home value
- $110,600
Education
- Bachelor's degree or higher (age 25+)
- 17.4%
Employment
- Unemployment rate
- 2.1%
Housing
- Owner-occupied
- 215(79.3%)
- Renter-occupied
- 56(20.7%)
- Vacant units
- 12
- Built (median)
- 1952
Commute
- Public transit
- 0(0.0%)
- Work from home
- 43(10.5%)
- Avg commute
- 19.4 min
Economic wellbeing
- Below poverty line
- 30(3.8%)
- Uninsured
- 16(1.9%)
Digital access
- Broadband access
- 239(88.2%)
- No broadband
- 32(11.8%)
Language & nativity
- Foreign-born
- 22(2.6%)
- Non-English at home
- 24(3.3%)
Fair Market Rent
Fresh.HUD SAFMR · May 1, 2026Studio
$680
/month
1 Bed
$740
/month
2 Bed
$970
/month
3 Bed
$1,230
/month
4 Bed
$1,300
/month
HUD Fair Market Rents represent the 40th percentile of standard-quality rental housing in this area. FY2026 data.
New housing construction
New housing units permitted
86
Across 41 permitted buildings. Total construction value: $15.8M.
Single-family
26
30% of total units
Multifamily (2+ unit)
60
70% of total units
Single-family value
$7.8M
construction value
Multifamily value
$8.0M
construction value
Apartment construction (5+ unit buildings) accounts for 58% of new units this year — the area is densifying, not just adding single-family stock.
Aggregated from 2 counties touching this ZIP (2024).
Source: U.S. Census Bureau Building Permits Survey (census.gov/construction/bps). Public domain. BPS reports annual residential building permits from local permit-issuing jurisdictions, aggregated to county. A permit reflects intent to build, not a completed unit — actual construction lags by 6-24 months for multifamily projects.
Income & tax statistics
Tax returns filed
340
Average AGI
$76,726
Avg property tax
—
EITC participation
8.8%
Income distribution
- $1 – $25,00026.5% · 90
- $25,000 – $50,00020.6% · 70
- $50,000 – $75,00017.6% · 60
- $75,000 – $100,00011.8% · 40
- $100,000 – $200,00017.6% · 60
- $200,000 or more5.9% · 20
Avg mortgage interest
—
Avg charitable contribution
—
Avg capital gains
$2,624
Avg total income tax
—
Source: IRS Statistics of Income — Individual Income Tax Statistics by ZIP Code (irs.gov). Public domain. Dollar columns reported in thousands by the IRS; figures here display real dollars. Total ZCTA AGI for the area was $26.1M across all reported brackets.
Business & employment
Business establishments
20
Total employment
82
Annual payroll
$3.6M
Average annual pay
$43,902
Source: U.S. Census Bureau, ZIP Business Patterns (census.gov). Public domain. ZBP covers establishments with paid employees; Census suppresses employment and payroll values when fewer employers operate in a ZIP than would protect their confidentiality.
Employment & wages
Average annual pay
$55,354
Average weekly wage
$1,065
Total employment
9,788
Total establishments
638
That is roughly 15% below the US national average of $65,470 per worker.
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (bls.gov/cew). Public domain. QCEW is derived from state unemployment-insurance filings and covers ~95% of US jobs. Figures are county-level totals assigned to ZIPs whose primary county matches; small-employer cells are suppressed by BLS to protect employer confidentiality.
Unemployment
Unemployment rate
2.7%
That is 1.3 percentage points below the US national unemployment rate of about 4.0%.
Labor force
10,791
Employed
10,502
Unemployed
289
Based on Nobles County, MN data (2024).
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics (bls.gov/lau). Public domain. LAUS publishes monthly and annual labor-force estimates for every US county. Figures are county-level totals assigned to ZIPs whose primary county matches.
Banking access
FDIC-insured bank branches
1
Limited banking access
Only a handful of branches — residents may rely on neighboring ZIPs or online banking for most services.
Total deposits
$42.7M
across all branches in this ZIP
Distinct institutions
1
different banks operating here
Top banks by deposits in this ZIP
- 1.Security Savings Bank$42.7M · 1 branch
Based on FDIC-insured branch offices as of June 30, 2024.
Source: FDIC Summary of Deposits (fdic.gov). Annual June-30 snapshot of every FDIC-insured branch and the deposits booked there. Figures cover all institutions reporting a branch address in this ZIP.
Federal Disaster Declarations
Federally Declared Disasters
21
Date Range
1969–2024
Most Recent Declaration
SEVERE STORMS AND FLOODING
Flood — declared June 28, 2024 (DR-4797)
Incident period: June 16, 2024 – July 4, 2024
Top Incident Types
- Severe Storm9 (43%)
- Flood7 (33%)
- Biological2 (10%)
- Hurricane1 (5%)
- Tornado1 (5%)
- Other1 (5%)
Individual Assistance
5
Direct help to disaster survivors
Households Program
2
Housing & temporary lodging support
Public Assistance
19
Repair of public facilities & roads
Hazard Mitigation
10
Funding to reduce future disaster risk
FEMA declares disasters at the county level; counts here include every federally declared disaster touching any county that overlaps this ZIP. Statewide declarations and pre-1964 records without county granularity are excluded. Program flags reflect which FEMA assistance categories were activated (Individual Assistance, Households, Public Assistance, Hazard Mitigation). Source: fema.gov/openfema. Public domain.
Climate
30-year averages (1991-2020) from the nearest GHCN-D weather station. Temperature and precipitation values reflect typical annual conditions, not any single year.
Avg. temperature
46°F
35° – 57.1°
Annual precipitation
29.3"
Annual snowfall
34.9"
Heating · cooling days
7,624.5 · 752.9
Annual base 65°F
Nearest station: ROCK RAPIDS, IA US, 9.4 miles from the centroid of Ellsworth, MN (ZIP 56129)
Source: NOAA National Centers for Environmental Information, 1991–2020 U.S. Climate Normals (ncei.noaa.gov). Public domain.
Community health profile
Years of potential life lost (per 100K)
6,329
That is roughly 1,871 years per 100,000 below the national county median (~8,200).
Premature death is the headline composite outcome CHR reports — age-adjusted, all-cause, before age 75.
Fair or poor health
20%
of adults self-report
Poor physical health days
4.1
avg per adult per month
Poor mental health days
4.8
avg per adult per month
Uninsured
11.0%
of residents under 65
Primary care MDs
64
per 100,000 residents
Preventable hospital stays
1,842
per 100K Medicare enrollees
Food environment (0-10)
8.2
10 = best access & security
Exercise access
55%
residents near a facility
Flu vaccinated
59%
of Medicare enrollees
Low birth weight (under 2,500 g) accounts for 7.8% of live births in this county — an early-life health input that downstream outcomes track against.
Based on Nobles data (2025 CHR release).
Source: County Health Rankings & Roadmaps, University of Wisconsin Population Health Institute (countyhealthrankings.org). Annual release. Underlying source datasets vary by measure (CDC BRFSS, NCHS Vital Statistics, AHA, USDA Food Environment Atlas, and others). Figures are county-level and assigned to every ZIP whose primary county matches.
Food access
Food access status
Significant food access concerns
29.5% of Nobles County, MN residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
0.37
per 1,000 residents
Supercenters & clubs
—
per 1,000 residents
SNAP-authorized stores
1.17
accepting food benefits
Fast-food restaurants
0.47
per 1,000 residents
Among low-income residents, 9.9% are low-access — those without a supermarket within 1 mile (urban) or 10 miles (rural).
Per-1,000 figures show how many of each store type exist in Nobles County, MN for every 1,000 residents. Higher grocery and supercenter density usually means easier access to fresh food; higher convenience-store-only density (with low grocery rate) often signals a food swamp.
Source: USDA Economic Research Service, Food Environment Atlas (ers.usda.gov). County-level metrics fanned to ZIP via the primary county in the Census ZCTA-county relationship file. Variable years differ per family (stores ~2020, low-access ~2019).
Safety
FBI publishes crime data at the county level. Numbers below cover the primary county that contains this ZIP. Rates are per 100,000 residents in the area covered by reporting agencies.
Violent crime rate
—
per 100K residents · 12 reports
Property crime rate
—
per 100K residents · 12 reports
Homicide
0
Robbery
1
Burglary
1
Vehicle theft
2
County-level data for Nobles (2024)
Source: U.S. Federal Bureau of Investigation, Uniform Crime Reporting Program (cde.ucr.cjis.gov). Public domain. Coverage varies by reporting agency; areas with partial agency coverage may understate true crime totals.
Who’s moving in and out
Net migration (2022-2023)
▼−453 people
−264 households • −$18.1M net AGI flow
Moved in
532households
902 people • $25.1M AGI
Moved out
796households
1,355 people • $43.2M AGI
Where new residents came from
- Jackson County, MN — 30 households
- Minnehaha County, SD — 27 households
- Murray County, MN — 23 households
- Cottonwood County, MN — 20 households
Where departing residents went
- Minnehaha County, SD — 64 households
- Jackson County, MN — 30 households
- Murray County, MN — 27 households
- Rock County, MN — 26 households
- Lincoln County, SD — 22 households
Incoming households reported an average AGI of $47,256 versus departing households' $54,307.
Source: U.S. Internal Revenue Service, Statistics of Income, Migration Data (irs.gov). Public domain. Migration is measured by year-over-year changes in the address on individual tax returns; figures are county-level totals attributed to ZIPs whose primary county matches. Foreign migration contributes to inflow/outflow totals but does not appear in the top-county lists. Small flows are suppressed by IRS to protect taxpayer confidentiality.
Taxes & benefits in Minnesota
State-level rules that apply to every resident of ZIP 56129. Numbers reflect the most recent published year per source.
Tax rates
Income tax
9.85%
graduated · 3 brackets
Sales tax (combined)
8.14%
State 6.88% · avg local 1.26%
Property tax (effective)
1.04%
Median $1,545/year
Tax burden rank
47 of 50
12.30% of personal income
For ZIP 56129: At this ZIP's median AGI of $76,726, the estimated state income tax (before deductions) runs about $4,535 per year. Applied to this ZIP's typical home value of $110,600, that works out to roughly $1,153/year in property tax.
Paid family leave
Program
Minnesota Paid Leave
Mandatory (state-run insurance)
Max weeks/year
20
Parental
12wk
Max weekly benefit
$1,423
Replacement: 90% to 0.5x SAWW + 66% to 1.0x SAWW + 55% above · job protection
Safety net
SNAP eligibility
165% FPL
Broad-Based Categorical Eligibility (raises gross income limit above federal 130% floor). No asset test.
Sources: Tax Foundation (state tax rates & brackets), Bipartisan Policy Center (paid family leave), USDA FNS (SNAP categorical eligibility).
Other ZIPs near 56129
Nearby ZIPs by distance
56146 (4.7 mi) · 56158 (Magnolia, 7.5 mi) · 56110 (Adrian, 8.1 mi) · 51246 (Rock Rapids, 9.3 mi) · 51243 (Little Rock, 9.5 mi) · 56173 (Steen, 10 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
Data sources used on this page
SourcesFresh.CDC PLACES · Apr 24, 2026Fresh.NCES CCD via Urban Institute EDP · Apr 27, 2026Fresh.HUD SAFMR · May 1, 2026
All data on this page is sourced from federal government datasets · Not AI-generated · Methodology
Health profile
Crude prevalence estimates from CDC PLACES, derived from BRFSS small-area modeling. Population-level figures only.
Obesity
37.3%
4.3pp above the 33.0% national rate.
High Blood Pressure
34.9%
2.9pp above the 32.0% national rate.
Depression
23.6%
Tracks close to the 22.0% national rate.
Annual Checkup
76.4%
Tracks close to the 76.0% national rate.
Health Insurance
7.9%
5.1pp below the 13.0% national rate.
Diabetes
12.4%
Tracks close to the 11.0% national rate.
Schools in this ZIP
2 schools serve this ZIP, including 2 non-charter.
| School | Type | Grades | Enrollment |
|---|---|---|---|
| ELLSWORTH ELEMENTARY | Public | -1–6 | 75 |
| ELLSWORTH SECONDARY | Public | 7–12 | 65 |
Schools listed from NCES Common Core of Data via the Urban Institute Education Data Portal.
Fresh.NCES CCD via Urban Institute EDP · Apr 27, 2026Colleges & universities nearby
Colleges in this area
1
Median in-state tuition
—
Median earnings (10 yr)
$28,336
- 2-Year
Avalon School of Cosmetology
Worthington, MN · 56187
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 71.1%
- Median earnings (10 yr)
- $28,336
- Median student debt
- —
Source: U.S. Department of Education College Scorecard (collegescorecard.ed.gov). Public domain data. Earnings figures reflect median earnings 10 years after entry for federally-aided students.
What these numbers say together
Ellsworth, MN (ZIP 56129) sits in Nobles County. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Health Insurance comes in below the national average at 7.9%. NCES lists 2 schools serving the area, 2 non-charter. 1 college or university serves the area. IRS data shows average household income (AGI) of $76,726, well above the ~$45K national average per return. FDIC counts just 1 bank branch in this ZIP (Summary of Deposits, 2024) — residents likely lean on neighboring ZIPs or online banking for most services. FEMA has issued 21 federal disaster declarations affecting this ZIP since 1969 — a high-frequency exposure profile. 29.5% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. Minnesota levies a graduated state income tax (top rate 9.85%); a household at the local median AGI of $76,726 would pay roughly $4,535/year before deductions. IRS migration data (2022-2023) shows a net loss of 453 residents (264 households) — the ZIP's primary county is shrinking. Healthcare access is the area's quieter strength; school options sit on the lighter side, so families may find themselves looking at districts a few ZIPs over. Notable: median household income $62,656, fair market rent of $970 for a two-bedroom, and a low 3.8% poverty rate. Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
The two domains pull in different directions. Healthcare access reads strong, but the on-paper school count is on the lighter side — that’s less a quality signal and more a density one. Households here often look at districts a few ZIPs over for school choice while keeping their providers local.
One concrete reading worth keeping: Depression prevalence sits near the national rate at 23.6%. Each figure on this page links to the original federal dataset with its retrieval date — this synthesis is a reading, not a substitute for the underlying records.
Frequently Asked Questions — ZIP 56129
What is the obesity rate in ZIP 56129?
37.3%, which is 4.3 percentage points above the national average of 33.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the depression rate in ZIP 56129?
23.6%, which is 1.6 percentage points above the national average of 22.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the high blood pressure rate in ZIP 56129?
34.9%, which is 2.9 percentage points above the national average of 32.0% (CDC PLACES, retrieved Apr 24, 2026).
How many schools are in ZIP 56129?
2 schools serve this ZIP, including 2 public schools (NCES CCD, retrieved Apr 27, 2026). No charter schools are listed in this ZIP by NCES CCD.
Does ZIP 56129 have charter schools?
No charter schools are listed in ZIP 56129 by NCES CCD (retrieved Apr 27, 2026).
Are there high schools in ZIP 56129?
Yes, 1 high school serves this ZIP: Ellsworth Secondary. (NCES CCD, retrieved Apr 27, 2026).
What is the population of ZIP 56129?
832 people live in ZIP 56129, with a median age of 38.1 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the median household income in ZIP 56129?
$62,656 per year (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
Is ZIP 56129 mostly renters or homeowners?
In ZIP 56129, 79.3% of occupied housing units are owner-occupied and 20.7% are renter-occupied (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How do people commute in ZIP 56129?
In ZIP 56129, 10.5% of workers work from home. Public transit is used by 0.0% of commuters (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the poverty rate in ZIP 56129?
3.8% of the population in ZIP 56129 lives below the federal poverty line (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What percentage of households in ZIP 56129 have broadband internet?
88.2% of households in ZIP 56129 have broadband internet access (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the average household income in ZIP 56129?
The average Adjusted Gross Income reported on tax returns from ZIP 56129 (Ellsworth, MN) is $76,726 per return (IRS SOI Tax Year 2022, retrieved May 2, 2026).
How much do homeowners pay in property tax in ZIP 56129?
Tax returns from ZIP 56129 report an average of $0 per return in real-estate tax deductions (IRS SOI Tax Year 2022, retrieved May 2, 2026).
What percentage of residents in ZIP 56129 earn over $200,000?
5.9% of tax returns from ZIP 56129 (Ellsworth, MN) report Adjusted Gross Income of $200,000 or more (IRS SOI Tax Year 2022, retrieved May 2, 2026).
How many businesses are in ZIP 56129?
As of 2022, 20 business establishments operated in ZIP 56129 employing 82 workers (Census ZIP Business Patterns, retrieved May 3, 2026).
What is the average salary in ZIP 56129?
The average annual pay across all local establishments in ZIP 56129 is $43,902, based on Census ZIP Business Patterns 2022 data (retrieved May 3, 2026).
How vulnerable is ZIP 56129 to disasters and public health emergencies?
According to the CDC Social Vulnerability Index (2022), ZIP 56129 ranks in the 50th percentile nationally for social vulnerability — a moderate vulnerability profile (retrieved May 3, 2026).
What is the biggest vulnerability factor in ZIP 56129?
Housing Type & Transportation is the highest-scoring CDC SVI theme for ZIP 56129, ranking in the 72th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
How many federally declared disasters has ZIP 56129 experienced?
FEMA has recorded 21 federal disaster declarations affecting ZIP 56129 between 1969–2024 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
What kinds of disasters most often hit ZIP 56129?
Severe Storm is the most common federally declared disaster type affecting ZIP 56129, accounting for 9 of 21 declarations (43%, FEMA OpenFEMA, retrieved May 3, 2026).
What was the most recent disaster declared for ZIP 56129?
The most recent FEMA disaster declaration affecting ZIP 56129 was "SEVERE STORMS AND FLOODING" — a flood declared in 2024 (DR-4797) (FEMA OpenFEMA, retrieved May 3, 2026).
What colleges are near ZIP 56129?
1 college or university is listed near ZIP 56129 by the U.S. Department of Education College Scorecard, including Avalon School Of Cosmetology (retrieved May 2, 2026).
What do graduates earn from colleges near ZIP 56129?
Graduates of nearby colleges earn a median of $28,336 ten years after entry (College Scorecard, retrieved May 2, 2026).
What is the climate like in ZIP 56129?
ZIP 56129 has an average annual temperature of 46.0°F and 29.3" of annual precipitation based on the ROCK RAPIDS, IA US weather station 9.3 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
What taxes apply in ZIP 56129?
Minnesota has a graduated income tax with a top rate of 9.85%. Households at the local median AGI of $76,726 would pay roughly $4,535 in state income tax annually (estimated, before deductions). Combined sales tax: 8.14% (Tax Foundation 2025).
Does Minnesota have paid family leave?
Minnesota runs an active paid family leave program (Minnesota Paid Leave) offering up to 20 weeks of paid leave per year, with a maximum weekly benefit of $1,423 (Bipartisan Policy Center 2026).
What data is available for ZIP 56129?
This page covers health outcomes from CDC PLACES (40 metrics), school information from NCES CCD (2 schools), demographics from the Census ACS 5-Year (2022), colleges from the U.S. Department of Education College Scorecard (1 institution), income & tax statistics from the IRS SOI (Tax Year 2022), local business & employment from Census ZIP Business Patterns (2022), social vulnerability scores from the CDC/ATSDR SVI (2022), federal disaster declarations from FEMA OpenFEMA (21 on record), climate normals from NOAA NCEI (1991-2020), county-level crime data from the FBI Crime Data Explorer (2024), and state-level tax rates from the Tax Foundation. Data is refreshed on Mubboo's standard schedule.
How current is this data?
Health data retrieved Apr 24, 2026 from CDC PLACES. School data retrieved Apr 27, 2026 from NCES CCD. Demographics retrieved Apr 30, 2026 from Census ACS 5-Year (2022). College data retrieved May 2, 2026 from U.S. Dept of Education College Scorecard. Income & tax statistics retrieved May 2, 2026 from IRS SOI (Tax Year 2022). Business & employment retrieved May 3, 2026 from Census ZBP (2022). Social vulnerability scores retrieved May 3, 2026 from CDC/ATSDR SVI (2022). Federal disaster declarations retrieved May 3, 2026 from FEMA OpenFEMA (21 on record). Climate normals retrieved May 8, 2026 from NOAA NCEI (1991-2020). County-level crime data retrieved May 4, 2026 from the FBI Crime Data Explorer (2024). State-level tax rates retrieved 2026-05-05 15:58:22.284+00 from the Tax Foundation.
Other ZIPs near 56129
Nearby ZIPs by distance
56146 (4.7 mi) · 56158 (Magnolia, 7.5 mi) · 56110 (Adrian, 8.1 mi) · 51246 (Rock Rapids, 9.3 mi) · 51243 (Little Rock, 9.5 mi) · 56173 (Steen, 10 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
More Info topics
Have a specific question about ZIP 56129?
Ask Mubboo — launching Q4 2026.
Data refreshed via Mubboo's ETL pipeline; oldest source on this page retrieved Apr 24, 2026.
Social Vulnerability Index
Overall SVI
50th percentile
Moderate Vulnerability
Based on 2 census tracts, population 732
Vulnerability Themes
Households Without Vehicle
18
Limited English Speakers
10
Persons with Disability
99
Without HS Diploma
37
Without Health Insurance
47
Adults Age 65+
137
The Social Vulnerability Index uses U.S. Census data to identify communities most at risk during public health emergencies and natural disasters. Higher percentiles indicate greater vulnerability. Tract-level scores are aggregated to this ZCTA via Census 2020 ZCTA→Tract crosswalk, weighted by land-area share. Source: atsdr.cdc.gov. Public domain.