Population & age
- Total population
- 2,439
- Median age
- 23.2
Kyle, SD (57752)
Oglala Lakota County · Population 2,439
Fresh.Data current as of Apr 24, 2026
Kyle, SD (ZIP 57752) sits in Oglala Lakota County. The page draws on 1 federal data feed retrieved Apr 24. Top health signal: Obesity comes in above the national average at 49.0%. No NCES schools are mapped to this ZIP in the current dataset. 7 colleges and universities serve the area, with median in-state tuition of $8,764. 43% of returns claim the Earned Income Tax Credit (IRS), a higher share than most ZIPs. CDC's Social Vulnerability Index places this ZIP in the 91th percentile nationally — a highly vulnerable community profile. FEMA has issued 23 federal disaster declarations affecting this ZIP since 1976 — a high-frequency exposure profile. County Health Rankings reports 40,417 years of potential life lost per 100,000 (2025) — well above the national county median. South Dakota has no state income tax, saving the local median household (AGI $43,630) approximately $2,007/year vs the US average effective state tax rate. IRS migration data (2022-2023) shows a net loss of 79 residents (56 households) — the ZIP's primary county is shrinking. Both healthcare access and on-paper school density skew lighter than national norms; what shows up here is a snapshot, not a verdict — neighborhood-level texture matters at this scale. Notable: fair market rent of $950 for a two-bedroom, a 56.7% poverty rate (well above the ~12% US average), and broadband access at 73.9% of households (below the ~87% US average). 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
- 3.6%
- Black
- 0.3%
- Asian
- 0.0%
- Hispanic / Latino
- 2.9%
- Other / multi-racial
- 4.3%
Education
- Bachelor's degree or higher (age 25+)
- 9.0%
Employment
- Unemployment rate
- 6.2%
Housing
- Owner-occupied
- 177(38.1%)
- Renter-occupied
- 287(61.9%)
- Vacant units
- 142
- Built (median)
- 1982
Commute
- Public transit
- 0(0.0%)
- Work from home
- 7(1.1%)
- Avg commute
- 13.9 min
Economic wellbeing
- Below poverty line
- 1,352(56.7%)
- Uninsured
- 154(6.3%)
Digital access
- Broadband access
- 343(73.9%)
- No broadband
- 121(26.1%)
Language & nativity
- Foreign-born
- 16(0.7%)
- Non-English at home
- 470(20.3%)
Fair Market Rent
Fresh.HUD SAFMR · May 1, 2026Studio
$660
/month
1 Bed
$730
/month
2 Bed
$950
/month
3 Bed
$1,310
/month
4 Bed
$1,540
/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
0
Across 0 permitted buildings. Total construction value: $0.
Single-family
0
Multifamily (2+ unit)
0
Single-family value
$0
construction value
Multifamily value
$0
construction value
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
800
Average AGI
$43,630
Avg property tax
—
EITC participation
42.5%
Income distribution
- $1 – $25,00040.0% · 320
- $25,000 – $50,00027.5% · 220
- $50,000 – $75,00017.5% · 140
- $75,000 – $100,0007.5% · 60
- $100,000 – $200,0007.5% · 60
- $200,000 or more0.0% · 0
Avg mortgage interest
—
Avg charitable contribution
—
Avg capital gains
—
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 $34.9M across all reported brackets.
Business & employment
Business establishments
18
Total employment
665
Annual payroll
$32.6M
Average annual pay
$49,069
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
$53,583
Average weekly wage
$1,030
Total employment
3,797
Total establishments
136
That is roughly 18% 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
5.4%
That is 1.4 percentage points above the US national unemployment rate of about 4.0%.
Labor force
3,845
Employed
3,638
Unemployed
207
Based on Oglala Lakota County, SD 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.
Public libraries
Public-library outlets
2
Multiple library outlets
Several public-library outlets within the ZIP, giving residents real choice in branch hours, programming, and walk-in distance.
Buildings
1
1 central
Avg hours / week
40
across outlets in this ZIP
Avg square feet
8,000
per outlet
Outlets in this ZIP
- 1.Oglala Lakota College Woksape Tipi Academic & Public Library
- 2.Build Your Own Library
Includes 1 bookmobile — service location varies; check the system's schedule.
Public libraries provide free WiFi, computer access, children's programming, job-seeking resources, and meeting space — community infrastructure beyond books. FY2023 outlet inventory from the federal Public Libraries Survey.
Source: Institute of Museum and Library Services (imls.gov). Per-ZIP counts of active public-library outlets — central buildings, branches, and bookmobiles — operated by federally reporting library systems.
Federal Disaster Declarations
Federally Declared Disasters
23
Date Range
1976–2024
Most Recent Declaration
SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING
Flood — declared August 15, 2024 (DR-4807)
Incident period: June 16, 2024 – July 8, 2024
Top Incident Types
- Severe Storm11 (48%)
- Flood5 (22%)
- Biological2 (9%)
- Snowstorm2 (9%)
- Winter Storm1 (4%)
- Other2 (9%)
Individual Assistance
1
Direct help to disaster survivors
Households Program
3
Housing & temporary lodging support
Public Assistance
22
Repair of public facilities & roads
Hazard Mitigation
18
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
50.4°F
37.1° – 63.8°
Annual precipitation
19.6"
Annual snowfall
38"
Heating · cooling days
6,330.7 · 1,056.8
Annual base 65°F
Nearest station: INTERIOR 3 NE, SD US, 25.6 miles from the centroid of Kyle, SD (ZIP 57752)
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)
40,417
That is roughly 32,217 years per 100,000 above 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
35%
of adults self-report
Poor physical health days
6.7
avg per adult per month
Poor mental health days
6.3
avg per adult per month
Uninsured
13.7%
of residents under 65
Primary care MDs
37
per 100,000 residents
Preventable hospital stays
2,132
per 100K Medicare enrollees
Food environment (0-10)
—
10 = best access & security
Exercise access
2%
residents near a facility
Flu vaccinated
17%
of Medicare enrollees
Low birth weight (under 2,500 g) accounts for 8.7% of live births in this county — an early-life health input that downstream outcomes track against.
Based on Oglala Lakota 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
Good food access — most residents near a store
0.0% of Oglala Lakota County, SD residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
—
per 1,000 residents
Supercenters & clubs
—
per 1,000 residents
SNAP-authorized stores
0.80
accepting food benefits
Fast-food restaurants
0.21
per 1,000 residents
Per-1,000 figures show how many of each store type exist in Oglala Lakota County, SD 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 · 1 reports
Property crime rate
—
per 100K residents · 15 reports
Homicide
0
Robbery
1
Burglary
3
Vehicle theft
3
County-level data for Jackson (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)
▼−79 people
−56 households • −$460K net AGI flow
Moved in
196households
416 people • $8.6M AGI
Moved out
252households
495 people • $9.1M AGI
Where new residents came from
- Pennington County, SD — 48 households
Where departing residents went
- Pennington County, SD — 93 households
Incoming households reported an average AGI of $44,097 versus departing households' $36,123.
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 South Dakota
State-level rules that apply to every resident of ZIP 57752. Numbers reflect the most recent published year per source.
Tax rates
Income tax
None
No state income tax
Sales tax (combined)
6.11%
State 4.20% · avg local 1.91%
Property tax (effective)
0.59%
Median $595/year
Tax burden rank
5 of 50
8.60% of personal income
For ZIP 57752: A household at this ZIP's median AGI of $43,630 keeps approximately $2,007 more annually than residents of the typical income-tax state.
Paid family leave
Program
No program
No program
Safety net
SNAP eligibility
130% FPL
Federal 130% FPL gross income limit. Asset limit $3,000.
Sources: Tax Foundation (state tax rates & brackets), Bipartisan Policy Center (paid family leave), USDA FNS (SNAP categorical eligibility).
Other ZIPs near 57752
Nearby ZIPs by distance
57714 (Allen, 16 mi) · 57772 (Porcupine, 16.7 mi) · 57750 (Interior, 17.1 mi) · 57756 (Manderson-White Horse Creek, 19.1 mi) · 57716 (Batesland, 23.4 mi) · 57794 (Wounded Knee, 23.7 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
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
49.0%
16.0pp above the 33.0% national rate.
High Blood Pressure
40.9%
8.9pp above the 32.0% national rate.
Depression
25.2%
3.2pp above the 22.0% national rate.
Annual Checkup
72.1%
3.9pp below the 76.0% national rate.
Health Insurance
19.3%
6.3pp above the 13.0% national rate.
Diabetes
23.3%
12.3pp above the 11.0% national rate.
Colleges & universities nearby
Colleges in this area
7
Median in-state tuition
$8,764
Median earnings (10 yr)
$37,325
- 4-Year
Oglala Lakota College
Kyle, SD · 57752
- In-state tuition
- $2,684
- Out-of-state tuition
- $2,684
- Acceptance rate
- —
- Graduation rate
- 10.1%
- Median earnings (10 yr)
- $22,517
- Median student debt
- —
- 4-Year
South Dakota School of Mines and Technology
Rapid City, SD · 57701
- In-state tuition
- $10,500
- Out-of-state tuition
- $14,900
- Acceptance rate
- 79.9%
- Graduation rate
- 55.6%
- Median earnings (10 yr)
- $72,257
- Median student debt
- $27,000
- 4-Year
Black Hills State University
Spearfish, SD · 57799
- In-state tuition
- $8,764
- Out-of-state tuition
- $11,866
- Acceptance rate
- 96.3%
- Graduation rate
- 40.5%
- Median earnings (10 yr)
- $46,674
- Median student debt
- $26,000
- 4-Year
National American University-Rapid City
Rapid City, SD · 57702
- In-state tuition
- $16,065
- Out-of-state tuition
- $16,065
- Acceptance rate
- —
- Graduation rate
- 19.6%
- Median earnings (10 yr)
- $37,325
- Median student debt
- $29,020
- 2-Year
Western Dakota Technical College
Rapid City, SD · 57703
- In-state tuition
- $8,294
- Out-of-state tuition
- $8,294
- Acceptance rate
- —
- Graduation rate
- 53.6%
- Median earnings (10 yr)
- $40,240
- Median student debt
- $15,000
- Certificate
The Salon Professional Academy
Rapid City, SD · 57701
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 79.2%
- Median earnings (10 yr)
- $23,641
- Median student debt
- $8,500
- Certificate
Paul Mitchell the School-Rapid City
Rapid City, SD · 57701
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 82.9%
- Median earnings (10 yr)
- $29,547
- Median student debt
- $7,917
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
Kyle, SD (ZIP 57752) sits in Oglala Lakota County. The page draws on 1 federal data feed retrieved Apr 24. Top health signal: Obesity comes in above the national average at 49.0%. No NCES schools are mapped to this ZIP in the current dataset. 7 colleges and universities serve the area, with median in-state tuition of $8,764. 43% of returns claim the Earned Income Tax Credit (IRS), a higher share than most ZIPs. CDC's Social Vulnerability Index places this ZIP in the 91th percentile nationally — a highly vulnerable community profile. FEMA has issued 23 federal disaster declarations affecting this ZIP since 1976 — a high-frequency exposure profile. County Health Rankings reports 40,417 years of potential life lost per 100,000 (2025) — well above the national county median. South Dakota has no state income tax, saving the local median household (AGI $43,630) approximately $2,007/year vs the US average effective state tax rate. IRS migration data (2022-2023) shows a net loss of 79 residents (56 households) — the ZIP's primary county is shrinking. Both healthcare access and on-paper school density skew lighter than national norms; what shows up here is a snapshot, not a verdict — neighborhood-level texture matters at this scale. Notable: fair market rent of $950 for a two-bedroom, a 56.7% poverty rate (well above the ~12% US average), and broadband access at 73.9% of households (below the ~87% US average). Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
Both surfaces skew lighter than national averages. That isn’t a verdict — small-area estimates compress real neighborhood-level texture, and a single ZIP reading can miss a district line or a hospital corridor sitting just outside it. Treat this as a starting point for fieldwork, not a conclusion.
One concrete reading worth keeping: Depression prevalence sits higher the national rate at 25.2%. 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 57752
What is the obesity rate in ZIP 57752?
49.0%, which is 16.0 percentage points above the national average of 33.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the depression rate in ZIP 57752?
25.2%, which is 3.2 percentage points above the national average of 22.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the high blood pressure rate in ZIP 57752?
40.9%, which is 8.9 percentage points above the national average of 32.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the population of ZIP 57752?
2,439 people live in ZIP 57752, with a median age of 23.2 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
Is ZIP 57752 mostly renters or homeowners?
In ZIP 57752, 38.1% of occupied housing units are owner-occupied and 61.9% are renter-occupied (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How do people commute in ZIP 57752?
In ZIP 57752, 1.1% 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 57752?
56.7% of the population in ZIP 57752 lives below the federal poverty line (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What percentage of households in ZIP 57752 have broadband internet?
73.9% of households in ZIP 57752 have broadband internet access (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the average household income in ZIP 57752?
The average Adjusted Gross Income reported on tax returns from ZIP 57752 (Kyle, SD) is $43,630 per return (IRS SOI Tax Year 2022, retrieved May 2, 2026).
How much do homeowners pay in property tax in ZIP 57752?
Tax returns from ZIP 57752 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 57752 earn over $200,000?
0.0% of tax returns from ZIP 57752 (Kyle, SD) report Adjusted Gross Income of $200,000 or more (IRS SOI Tax Year 2022, retrieved May 2, 2026).
How many businesses are in ZIP 57752?
As of 2022, 18 business establishments operated in ZIP 57752 employing 665 workers (Census ZIP Business Patterns, retrieved May 3, 2026).
What is the average salary in ZIP 57752?
The average annual pay across all local establishments in ZIP 57752 is $49,069, based on Census ZIP Business Patterns 2022 data (retrieved May 3, 2026).
How vulnerable is ZIP 57752 to disasters and public health emergencies?
According to the CDC Social Vulnerability Index (2022), ZIP 57752 ranks in the 91th percentile nationally for social vulnerability — a very high vulnerability profile (retrieved May 3, 2026).
What is the biggest vulnerability factor in ZIP 57752?
Socioeconomic Status is the highest-scoring CDC SVI theme for ZIP 57752, ranking in the 95th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
How many federally declared disasters has ZIP 57752 experienced?
FEMA has recorded 23 federal disaster declarations affecting ZIP 57752 between 1976–2024 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
What kinds of disasters most often hit ZIP 57752?
Severe Storm is the most common federally declared disaster type affecting ZIP 57752, accounting for 11 of 23 declarations (48%, FEMA OpenFEMA, retrieved May 3, 2026).
What was the most recent disaster declared for ZIP 57752?
The most recent FEMA disaster declaration affecting ZIP 57752 was "SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING" — a flood declared in 2024 (DR-4807) (FEMA OpenFEMA, retrieved May 3, 2026).
What colleges are near ZIP 57752?
7 colleges and universities are listed near ZIP 57752 by the U.S. Department of Education College Scorecard, including Oglala Lakota College, South Dakota School Of Mines And Technology, and Black Hills State University (retrieved May 2, 2026).
What is the average tuition at colleges near ZIP 57752?
Median in-state tuition across 7 nearby institutions is $8,764 (College Scorecard, retrieved May 2, 2026).
What do graduates earn from colleges near ZIP 57752?
Graduates of nearby colleges earn a median of $37,325 ten years after entry (College Scorecard, retrieved May 2, 2026).
What is the climate like in ZIP 57752?
ZIP 57752 has an average annual temperature of 50.4°F and 19.6" of annual precipitation based on the INTERIOR 3 NE, SD US weather station 25.6 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
What taxes apply in ZIP 57752?
South Dakota has no state income tax. For a household earning the local median AGI of $43,630, this saves approximately $2,007 per year compared to the national average effective state tax rate. The combined state and local sales tax rate is 6.11% (Tax Foundation 2025).
Does South Dakota have paid family leave?
South Dakota has no state paid family leave program (Bipartisan Policy Center 2026).
What data is available for ZIP 57752?
This page covers health outcomes from CDC PLACES (33 metrics), demographics from the Census ACS 5-Year (2022), colleges from the U.S. Department of Education College Scorecard (7 institutions), 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 (23 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. 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 (23 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 57752
Nearby ZIPs by distance
57714 (Allen, 16 mi) · 57772 (Porcupine, 16.7 mi) · 57750 (Interior, 17.1 mi) · 57756 (Manderson-White Horse Creek, 19.1 mi) · 57716 (Batesland, 23.4 mi) · 57794 (Wounded Knee, 23.7 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 57752?
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
91st percentile
Very High Vulnerability
Based on 4 census tracts, population 2,296
Vulnerability Themes
Households Without Vehicle
52
Persons with Disability
269
Without HS Diploma
290
Without Health Insurance
769
Adults Age 65+
161
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.