Population & age
- Total population
- 328
- Median age
- 54.4
Lamar, OK (74850)
Hughes County · Population 328
Fresh.Data current as of Apr 24, 2026
Lamar, OK (ZIP 74850) sits in Hughes County. The page draws on 1 federal data feed retrieved Apr 24. Top health signal: High Blood Pressure comes in above the national average at 44.5%. No NCES schools are mapped to this ZIP in the current dataset. 8 colleges and universities serve the area, with median in-state tuition of $8,816. 30% of returns claim the Earned Income Tax Credit (IRS), a higher share than most ZIPs. BLS QCEW reports average annual pay of $40,331 per worker, roughly 38% below the US average. FEMA has issued 27 federal disaster declarations affecting this ZIP since 1973 — a high-frequency exposure profile. County Health Rankings reports 16,289 years of potential life lost per 100,000 (2025) — well above the national county median. Oklahoma levies a graduated state income tax (top rate 4.75%); a household at the local median AGI of $44,270 would pay roughly $1,262/year before deductions. IRS migration data (2022-2023) shows a net gain of 150 residents (34 households) — the ZIP's primary county is growing. 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 $51,250, fair market rent of $1,090 for a two-bedroom, and a typical home value of $189,525, up 9.8% over the past year. 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
- 59.5%
- Black
- 0.0%
- Asian
- 0.0%
- Hispanic / Latino
- 8.8%
- Other / multi-racial
- 22.9%
Income & housing
- Median household income
- $51,250
- Median home value
- $101,600
Education
- Bachelor's degree or higher (age 25+)
- 11.4%
Employment
- Unemployment rate
- 9.0%
Housing
- Owner-occupied
- 87(84.5%)
- Renter-occupied
- 16(15.5%)
- Vacant units
- 40
- Built (median)
- 1986
Commute
- Public transit
- 0(0.0%)
- Work from home
- 16(18.0%)
- Avg commute
- 30.7 min
Economic wellbeing
- Below poverty line
- 89(27.1%)
- Uninsured
- 7(2.1%)
Digital access
- Broadband access
- 71(68.9%)
- No broadband
- 32(31.1%)
Language & nativity
- Foreign-born
- 8(2.4%)
- Non-English at home
- 18(5.6%)
Fair Market Rent
Fresh.HUD SAFMR · May 1, 2026Studio
$820
/month
1 Bed
$830
/month
2 Bed
$1,090
/month
3 Bed
$1,340
/month
4 Bed
$1,560
/month
HUD Fair Market Rents represent the 40th percentile of standard-quality rental housing in this area. FY2026 data.
Home values
Typical home value
$189,525
Zillow Home Value Index (ZHVI) · as of March 2026
Year-over-year change
+9.8%
vs. March 2025
5-year change
+54.0%
vs. March 2021
Metro area
McAlester, OK
Metropolitan statistical area
Source: Zillow Research, ZHVI All Homes (SFR, Condo/Co-op) Time Series (zillow.com/research/data). Zillow Home Value Index (ZHVI) is copyrighted by Zillow, Inc.
New housing construction
New housing units permitted
7
Across 7 permitted buildings. Total construction value: $1.0M.
Single-family
7
100% of total units
Multifamily (2+ unit)
0
0% of total units
Single-family value
$1.0M
construction value
Multifamily value
$0
construction value
Based on county-level data (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
100
Average AGI
$44,270
Avg property tax
—
EITC participation
30.0%
Income distribution
- $1 – $25,00040.0% · 40
- $25,000 – $50,00040.0% · 40
- $50,000 – $75,0000.0% · 0
- $75,000 – $100,00020.0% · 20
- $100,000 – $200,0000.0% · 0
- $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 $4.4M across all reported brackets.
Employment & wages
Average annual pay
$40,331
Average weekly wage
$776
Total employment
2,867
Total establishments
291
That is roughly 38% 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
5.2%
That is 1.2 percentage points above the US national unemployment rate of about 4.0%.
Labor force
4,340
Employed
4,116
Unemployed
224
Based on Hughes County, OK 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.
Federal Disaster Declarations
Federally Declared Disasters
27
Date Range
1973–2024
Most Recent Declaration
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING
Tornado — declared April 30, 2024 (DR-4776)
Incident period: April 25, 2024 – May 9, 2024
Top Incident Types
- Severe Storm11 (41%)
- Severe Ice Storm7 (26%)
- Flood3 (11%)
- Tornado2 (7%)
- Biological2 (7%)
- Other2 (7%)
Individual Assistance
4
Direct help to disaster survivors
Households Program
5
Housing & temporary lodging support
Public Assistance
27
Repair of public facilities & roads
Hazard Mitigation
15
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
61.1°F
48.4° – 73.8°
Annual precipitation
41.3"
Annual snowfall
2.1"
Heating · cooling days
3,435.9 · 2,045.4
Annual base 65°F
Nearest station: HOLDENVILLE 2SSE, OK US, 16.2 miles from the centroid of Lamar, OK (ZIP 74850)
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)
16,289
That is roughly 8,089 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
26%
of adults self-report
Poor physical health days
5.2
avg per adult per month
Poor mental health days
6.2
avg per adult per month
Uninsured
14.9%
of residents under 65
Primary care MDs
22
per 100,000 residents
Preventable hospital stays
2,859
per 100K Medicare enrollees
Food environment (0-10)
6.5
10 = best access & security
Exercise access
31%
residents near a facility
Flu vaccinated
34%
of Medicare enrollees
Low birth weight (under 2,500 g) accounts for 9.0% of live births in this county — an early-life health input that downstream outcomes track against.
Based on Hughes 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
Moderate food access challenges
18.8% of Hughes County, OK residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
0.23
per 1,000 residents
Supercenters & clubs
—
per 1,000 residents
SNAP-authorized stores
1.27
accepting food benefits
Fast-food restaurants
0.46
per 1,000 residents
Among low-income residents, 7.4% 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 Hughes County, OK 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 · 96 reports
Homicide
0
Robbery
0
Burglary
30
Vehicle theft
19
County-level data for Hughes (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)
▲+150 people
+34 households • +$468K net AGI flow
Moved in
406households
895 people • $16.3M AGI
Moved out
372households
745 people • $15.8M AGI
Where new residents came from
- Seminole County, OK — 53 households
- Pontotoc County, OK — 32 households
- Pittsburg County, OK — 27 households
Where departing residents went
- Seminole County, OK — 58 households
- Pontotoc County, OK — 46 households
- Okfuskee County, OK — 20 households
Incoming households reported an average AGI of $40,148 versus departing households' $42,559.
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 Oklahoma
State-level rules that apply to every resident of ZIP 74850. Numbers reflect the most recent published year per source.
Tax rates
Income tax
4.75%
graduated · 6 brackets
Sales tax (combined)
9.06%
State 4.50% · avg local 4.56%
Property tax (effective)
0.62%
Median $1,105/year
Tax burden rank
6 of 50
8.80% of personal income
For ZIP 74850: At this ZIP's median AGI of $44,270, the estimated state income tax (before deductions) runs about $1,262 per year. Applied to this ZIP's typical home value of $189,525, that works out to roughly $1,177/year in property tax.
Paid family leave
Program
No program
No program
Safety net
SNAP eligibility
130% 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 74850
Nearby ZIPs by distance
74839 (Dustin, 9.7 mi) · 74883 (Wetumka, 11.2 mi) · 74848 (Holdenville, 13.5 mi) · 74845 (Hanna, 16.2 mi) · 74442 (Indianola, 16.5 mi) · 74570 (Stuart, 17.1 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
38.6%
5.6pp above the 33.0% national rate.
High Blood Pressure
44.5%
12.5pp above the 32.0% national rate.
Depression
24.5%
2.5pp above the 22.0% national rate.
Annual Checkup
80.6%
4.6pp above the 76.0% national rate.
Health Insurance
9.8%
3.2pp below the 13.0% national rate.
Diabetes
15.4%
4.4pp above the 11.0% national rate.
Colleges & universities nearby
Colleges in this area
8
Median in-state tuition
$8,816
Median earnings (10 yr)
$40,955
- 4-Year
East Central University
Ada, OK · 74820
- In-state tuition
- $8,032
- Out-of-state tuition
- $17,842
- Acceptance rate
- 58.1%
- Graduation rate
- 33.6%
- Median earnings (10 yr)
- $44,962
- Median student debt
- $17,671
- 4-Year
Oklahoma Baptist University
Shawnee, OK · 74804
- In-state tuition
- $35,570
- Out-of-state tuition
- $35,570
- Acceptance rate
- 49.4%
- Graduation rate
- 51.0%
- Median earnings (10 yr)
- $48,434
- Median student debt
- $24,801
- 2-Year
Seminole State College
Seminole, OK · 74868
- In-state tuition
- $5,460
- Out-of-state tuition
- $11,790
- Acceptance rate
- —
- Graduation rate
- 35.4%
- Median earnings (10 yr)
- $35,390
- Median student debt
- $11,000
- Certificate
Wes Watkins Technology Center
Wetumka, OK · 74883
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 98.3%
- Median earnings (10 yr)
- $32,209
- Median student debt
- —
- 2-Year
Gordon Cooper Technology Center
Shawnee, OK · 74804
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 84.7%
- Median earnings (10 yr)
- $42,021
- Median student debt
- —
- 4-Year
Family of Faith Christian University
Shawnee, OK · 74804
- In-state tuition
- $9,600
- Out-of-state tuition
- $9,600
- Acceptance rate
- 76.0%
- Graduation rate
- —
- Median earnings (10 yr)
- —
- Median student debt
- —
- Certificate
Pontotoc Technology Center
Ada, OK · 74820
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 82.4%
- Median earnings (10 yr)
- $40,955
- Median student debt
- —
- Certificate
Shawnee Beauty College
Shawnee, OK · 74801
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 87.8%
- Median earnings (10 yr)
- $18,636
- 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
Lamar, OK (ZIP 74850) sits in Hughes County. The page draws on 1 federal data feed retrieved Apr 24. Top health signal: High Blood Pressure comes in above the national average at 44.5%. No NCES schools are mapped to this ZIP in the current dataset. 8 colleges and universities serve the area, with median in-state tuition of $8,816. 30% of returns claim the Earned Income Tax Credit (IRS), a higher share than most ZIPs. BLS QCEW reports average annual pay of $40,331 per worker, roughly 38% below the US average. FEMA has issued 27 federal disaster declarations affecting this ZIP since 1973 — a high-frequency exposure profile. County Health Rankings reports 16,289 years of potential life lost per 100,000 (2025) — well above the national county median. Oklahoma levies a graduated state income tax (top rate 4.75%); a household at the local median AGI of $44,270 would pay roughly $1,262/year before deductions. IRS migration data (2022-2023) shows a net gain of 150 residents (34 households) — the ZIP's primary county is growing. 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 $51,250, fair market rent of $1,090 for a two-bedroom, and a typical home value of $189,525, up 9.8% over the past year. 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 higher the national rate at 24.5%. 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 74850
What is the obesity rate in ZIP 74850?
38.6%, which is 5.6 percentage points above the national average of 33.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the depression rate in ZIP 74850?
24.5%, which is 2.5 percentage points above the national average of 22.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the high blood pressure rate in ZIP 74850?
44.5%, which is 12.5 percentage points above the national average of 32.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the population of ZIP 74850?
328 people live in ZIP 74850, with a median age of 54.4 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the median household income in ZIP 74850?
$51,250 per year (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
Is ZIP 74850 mostly renters or homeowners?
In ZIP 74850, 84.5% of occupied housing units are owner-occupied and 15.5% are renter-occupied (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How do people commute in ZIP 74850?
In ZIP 74850, 18.0% 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 74850?
27.1% of the population in ZIP 74850 lives below the federal poverty line (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What percentage of households in ZIP 74850 have broadband internet?
68.9% of households in ZIP 74850 have broadband internet access (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the typical home value in ZIP 74850?
The typical home value in ZIP 74850 is $189,525, up 9.8% from a year ago (Zillow Home Value Index, retrieved May 1, 2026).
Are home values rising or falling in ZIP 74850?
Home values are up 9.8% over the past year and up 54.0% over the past five years (Zillow Home Value Index, retrieved May 1, 2026).
What is the average household income in ZIP 74850?
The average Adjusted Gross Income reported on tax returns from ZIP 74850 (Lamar, OK) is $44,270 per return (IRS SOI Tax Year 2022, retrieved May 2, 2026).
How much do homeowners pay in property tax in ZIP 74850?
Tax returns from ZIP 74850 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 74850 earn over $200,000?
0.0% of tax returns from ZIP 74850 (Lamar, OK) report Adjusted Gross Income of $200,000 or more (IRS SOI Tax Year 2022, retrieved May 2, 2026).
How vulnerable is ZIP 74850 to disasters and public health emergencies?
According to the CDC Social Vulnerability Index (2022), ZIP 74850 ranks in the 47th percentile nationally for social vulnerability — a moderate vulnerability profile (retrieved May 3, 2026).
What is the biggest vulnerability factor in ZIP 74850?
Household Characteristics is the highest-scoring CDC SVI theme for ZIP 74850, ranking in the 63th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
How many federally declared disasters has ZIP 74850 experienced?
FEMA has recorded 27 federal disaster declarations affecting ZIP 74850 between 1973–2024 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
What kinds of disasters most often hit ZIP 74850?
Severe Storm is the most common federally declared disaster type affecting ZIP 74850, accounting for 11 of 27 declarations (41%, FEMA OpenFEMA, retrieved May 3, 2026).
What was the most recent disaster declared for ZIP 74850?
The most recent FEMA disaster declaration affecting ZIP 74850 was "SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING" — a tornado declared in 2024 (DR-4776) (FEMA OpenFEMA, retrieved May 3, 2026).
What colleges are near ZIP 74850?
8 colleges and universities are listed near ZIP 74850 by the U.S. Department of Education College Scorecard, including East Central University, Oklahoma Baptist University, and Seminole State College (retrieved May 2, 2026).
What is the average tuition at colleges near ZIP 74850?
Median in-state tuition across 8 nearby institutions is $8,816 (College Scorecard, retrieved May 2, 2026).
What do graduates earn from colleges near ZIP 74850?
Graduates of nearby colleges earn a median of $40,955 ten years after entry (College Scorecard, retrieved May 2, 2026).
What is the climate like in ZIP 74850?
ZIP 74850 has an average annual temperature of 61.1°F and 41.3" of annual precipitation based on the HOLDENVILLE 2SSE, OK US weather station 16.2 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
What taxes apply in ZIP 74850?
Oklahoma has a graduated income tax with a top rate of 4.75%. Households at the local median AGI of $44,270 would pay roughly $1,262 in state income tax annually (estimated, before deductions). Combined sales tax: 9.06% (Tax Foundation 2025).
Does Oklahoma have paid family leave?
Oklahoma has no state paid family leave program (Bipartisan Policy Center 2026).
What data is available for ZIP 74850?
This page covers health outcomes from CDC PLACES (40 metrics), demographics from the Census ACS 5-Year (2022), home values from the Zillow Home Value Index, colleges from the U.S. Department of Education College Scorecard (8 institutions), income & tax statistics from the IRS SOI (Tax Year 2022), social vulnerability scores from the CDC/ATSDR SVI (2022), federal disaster declarations from FEMA OpenFEMA (27 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). Home values retrieved May 1, 2026 from Zillow Research. 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). Social vulnerability scores retrieved May 3, 2026 from CDC/ATSDR SVI (2022). Federal disaster declarations retrieved May 3, 2026 from FEMA OpenFEMA (27 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 74850
Nearby ZIPs by distance
74839 (Dustin, 9.7 mi) · 74883 (Wetumka, 11.2 mi) · 74848 (Holdenville, 13.5 mi) · 74845 (Hanna, 16.2 mi) · 74442 (Indianola, 16.5 mi) · 74570 (Stuart, 17.1 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 74850?
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
47th percentile
Moderate Vulnerability
Based on 2 census tracts, population 408
Vulnerability Themes
Households Without Vehicle
5
Limited English Speakers
4
Persons with Disability
65
Without HS Diploma
32
Without Health Insurance
66
Adults Age 65+
89
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.