Population & age
- Total population
- 20,442
- Median age
- 37.5
Leon County · Tallahassee, FL · Population 20,442
Tallahassee, FL (ZIP 32311) sits in Leon County within the Tallahassee metro area. The page draws on 2 federal data feeds retrieved Apr 26. Top health signal: Depression comes in below the national average at 16.8%. NCES lists 7 schools serving the area, 7 non-charter. 10 colleges and universities serve the area, with median in-state tuition of $5,656. IRS data shows average household income (AGI) of $85,189, well above the ~$45K national average per return. FDIC counts just 2 bank branches in this ZIP (Summary of Deposits, 2024) — residents likely lean on neighboring ZIPs or online banking for most services. FEMA has issued 36 federal disaster declarations affecting this ZIP since 1973 — a high-frequency exposure profile. Annual precipitation averages 59.8" — a wet-climate ZCTA per NOAA's 1991–2020 Normals. 32.3% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. Florida has no state income tax, saving the local median household (AGI $85,189) approximately $3,919/year vs the US average effective state tax rate. IRS migration data (2022-2023) shows a net loss of 1,924 residents (1,173 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 $82,392, fair market rent of $1,670 for a two-bedroom, and a typical home value of $331,913, up 0.8% 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.
Studio
$1,360
/month
1 Bed
$1,490
/month
2 Bed
$1,670
/month
3 Bed
$2,070
/month
4 Bed
$2,210
/month
HUD Fair Market Rents represent the 40th percentile of standard-quality rental housing in this area. FY2026 data.
$331,913
Zillow Home Value Index (ZHVI) · as of March 2026
+0.8%
vs. March 2025
+29.3%
vs. March 2021
Tallahassee, FL
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 units permitted
1,765
Across 811 permitted buildings. Total construction value: $278.7M.
Single-family
768
44% of total units
Multifamily (2+ unit)
997
56% of total units
Single-family value
$151.5M
construction value
Multifamily value
$127.2M
construction value
Apartment construction (5+ unit buildings) accounts for 55% of new units this year — the area is densifying, not just adding single-family stock.
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.
Tax returns filed
10,680
Average AGI
$85,189
Avg property tax
$400
EITC participation
12.8%
Income distribution
Avg mortgage interest
$641
Avg charitable contribution
$829
Avg capital gains
$4,750
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 $909.8M across all reported brackets.
Business establishments
354
Total employment
3,558
Annual payroll
$272.7M
Average annual pay
$76,654
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.
Average annual pay
$61,906
Average weekly wage
$1,191
Total employment
163,754
Total establishments
11,134
That is roughly 5% 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 rate
3.5%
That is 0.5 percentage points below the US national unemployment rate of about 4.0%.
Labor force
165,661
Employed
159,911
Unemployed
5,750
Based on Leon County, FL 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.
FDIC-insured bank branches
2
Limited banking access
Only a handful of branches — residents may rely on neighboring ZIPs or online banking for most services.
Total deposits
$59.1M
across all branches in this ZIP
Distinct institutions
2
different banks operating here
Top banks by deposits in this ZIP
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.
FTA tracks transit service at the urbanized-area level. Numbers below reflect the agencies and modes serving the area that contains this ZIP, not stop-level coverage.
Service status
Available
Tallahassee, FL
Reporting agencies
1
Largest: City of Tallahassee
Annual ridership
—
unlinked trips · 2024
Source: U.S. Federal Transit Administration, National Transit Database (transit.dot.gov). Public domain.
Public EV charging stations
4
Established EV charging
Multiple public charging stations across the ZIP — typical of mid-density suburban and small-urban areas with active EV adoption.
Level 2 ports
8
AC charging — workplace, retail, home
DC Fast ports
0
Highway-class fast charging
Charging networks
Active public stations only. Snapshot taken 2026; AFDC's underlying registry refreshes continuously as stations open and close.
Source: U.S. Department of Energy via NREL (afdc.energy.gov). Per-ZIP counts of active public alternative-fuel stations (electric, hydrogen, propane, CNG, biodiesel, E85, LNG, renewable diesel) and EV charging-port totals.
Public-library outlets
1
Single library outlet
One public-library outlet serves this ZIP — typical of suburban and small-town areas. Card holders also have full access to the rest of the system's branches.
Buildings
1
1 branch
Avg hours / week
40
across outlets in this ZIP
Avg square feet
5,600
per outlet
Outlets in this ZIP
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.
Federally Declared Disasters
36
Date Range
1973–2024
Most Recent Declaration
HURRICANE HELENE
Hurricane — declared September 28, 2024 (DR-4828)
Incident period: September 23, 2024 – October 7, 2024
Top Incident Types
Individual Assistance
6
Direct help to disaster survivors
Households Program
8
Housing & temporary lodging support
Public Assistance
35
Repair of public facilities & roads
Hazard Mitigation
19
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.
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
68°F
55.6° – 80.4°
Annual precipitation
59.8"
Diurnal range
24.8°F
Day-night swing
Heating · cooling days
1,611.7 · 2,729.8
Annual base 65°F
Nearest station: TALLAHASSEE AP, FL US, 10.4 miles from the centroid of Tallahassee, FL (ZIP 32311)
Source: NOAA National Centers for Environmental Information, 1991–2020 U.S. Climate Normals (ncei.noaa.gov). Public domain.
Median daily AQI
44
GoodPeak AQI (2024)
129
Unhealthy for Sensitive Groups
Primary pollutant
PM2.5
261 days as main pollutant
Days measured
355
Based on Leon County data (2024).
Source: U.S. Environmental Protection Agency, Air Quality System (epa.gov). Public domain. Only counties with EPA AQS monitoring stations appear here (~30% of US counties); rural ZIPs whose primary county has no monitor will not show this section.
Years of potential life lost (per 100K)
8,452
That is roughly 252 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
17%
of adults self-report
Poor physical health days
4.2
avg per adult per month
Poor mental health days
5.8
avg per adult per month
Uninsured
10.7%
of residents under 65
Primary care MDs
88
per 100,000 residents
Preventable hospital stays
2,956
per 100K Medicare enrollees
Food environment (0-10)
7.7
10 = best access & security
Exercise access
83%
residents near a facility
Flu vaccinated
40%
of Medicare enrollees
Low birth weight (under 2,500 g) accounts for 10.9% of live births in this county — an early-life health input that downstream outcomes track against.
Based on Leon 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 status
Significant food access concerns
32.3% of Leon County, FL residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
0.12
per 1,000 residents
Supercenters & clubs
0.03
per 1,000 residents
SNAP-authorized stores
0.76
accepting food benefits
Fast-food restaurants
1.01
per 1,000 residents
Among low-income residents, 9.4% 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 Leon County, FL 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).
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 · 481 reports
Property crime rate
—
per 100K residents · 1,751 reports
Homicide
5
Robbery
48
Burglary
255
Vehicle theft
84
County-level data for Leon (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.
Net migration (2022-2023)
▼−1,924 people
−1,173 households • −$99.7M net AGI flow
Moved in
11,204households
17,484 people • $609.0M AGI
Moved out
12,377households
19,408 people • $708.6M AGI
Where new residents came from
Where departing residents went
Incoming households reported an average AGI of $54,354 versus departing households' $57,255.
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.
State-level rules that apply to every resident of ZIP 32311. Numbers reflect the most recent published year per source.
Income tax
None
No state income tax
Sales tax (combined)
6.98%
State 6.00% · avg local 0.98%
Property tax (effective)
0.50%
Median $787/year
Tax burden rank
8 of 50
8.90% of personal income
For ZIP 32311: A household at this ZIP's median AGI of $85,189 keeps approximately $3,919 more annually than residents of the typical income-tax state. Applied to this ZIP's typical home value of $331,913, that works out to roughly $1,675/year in property tax.
Program
Voluntary (private insurance framework)
Voluntary (private insurance framework)
SNAP eligibility
200% 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 in Tallahassee
Nearby ZIPs by distance
32399 (Tallahassee, 3 mi) · 32301 (Tallahassee, 5.3 mi) · 32307 (Tallahassee, 6.7 mi) · 32308 (Tallahassee, 6.7 mi) · 32317 (Tallahassee, 6.8 mi) · 32305 (Tallahassee, 7.7 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
All data on this page is sourced from federal government datasets · Not AI-generated · Methodology
Crude prevalence estimates from CDC PLACES, derived from BRFSS small-area modeling. Population-level figures only.
32.4%
Tracks close to the 33.0% national rate.
33.6%
Tracks close to the 32.0% national rate.
16.8%
5.2pp below the 22.0% national rate.
77.3%
Tracks close to the 76.0% national rate.
9.6%
3.4pp below the 13.0% national rate.
10.6%
Tracks close to the 11.0% national rate.
7 schools serve this ZIP, including 7 non-charter.
| School | Type | Grades | Enrollment |
|---|---|---|---|
| LINCOLN HIGH SCHOOL | Public | 9–12 | 1,854 |
| FLORIDA STATE UNIVERSITY SCHOOL | Public | 0–12 | 1,830 |
| J MICHAEL CONLEY ELEMENTARY SCHOOL AT SOUTHWOOD | Public | -1–5 | 663 |
| APALACHEE ELEMENTARY SCHOOL | Public | -1–5 | 513 |
| TALLAHASSEE CLASSICAL SCHOOL | Public | 0–12 | 403 |
Showing top 5 by enrollment. 2 more schools serve this ZIP.
Schools listed from NCES Common Core of Data via the Urban Institute Education Data Portal.
Fresh.NCES CCD via Urban Institute EDP · Apr 26, 2026Colleges in this area
10
Median in-state tuition
$5,656
Median earnings (10 yr)
$35,745
Tallahassee, FL · 32306
Tallahassee, FL · 32304
Tallahassee, FL · 32307
Madison, FL · 32340
Tallahassee, FL · 32304
Perry, FL · 32348
Tallahassee, FL · 32312
Quincy, FL · 32351
Tallahassee, FL · 32310
Tallahassee, FL · 32309
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.
Tallahassee, FL (ZIP 32311) sits in Leon County within the Tallahassee metro area. The page draws on 2 federal data feeds retrieved Apr 26. Top health signal: Depression comes in below the national average at 16.8%. NCES lists 7 schools serving the area, 7 non-charter. 10 colleges and universities serve the area, with median in-state tuition of $5,656. IRS data shows average household income (AGI) of $85,189, well above the ~$45K national average per return. FDIC counts just 2 bank branches in this ZIP (Summary of Deposits, 2024) — residents likely lean on neighboring ZIPs or online banking for most services. FEMA has issued 36 federal disaster declarations affecting this ZIP since 1973 — a high-frequency exposure profile. Annual precipitation averages 59.8" — a wet-climate ZCTA per NOAA's 1991–2020 Normals. 32.3% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. Florida has no state income tax, saving the local median household (AGI $85,189) approximately $3,919/year vs the US average effective state tax rate. IRS migration data (2022-2023) shows a net loss of 1,924 residents (1,173 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 $82,392, fair market rent of $1,670 for a two-bedroom, and a typical home value of $331,913, up 0.8% 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 lower the national rate at 16.8%. 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.
32.4%, which is 0.6 percentage points below the national average of 33.0% (CDC PLACES, retrieved Apr 24, 2026).
16.8%, which is 5.2 percentage points below the national average of 22.0% (CDC PLACES, retrieved Apr 24, 2026).
33.6%, which is 1.6 percentage points above the national average of 32.0% (CDC PLACES, retrieved Apr 24, 2026).
7 schools serve this ZIP, including 7 public schools (NCES CCD, retrieved Apr 26, 2026). No charter schools are listed in this ZIP by NCES CCD.
No charter schools are listed in ZIP 32311 by NCES CCD (retrieved Apr 26, 2026).
Yes, 5 high schools serve this ZIP: Lincoln High School, Florida State University School, Tallahassee Classical School, and 2 more. (NCES CCD, retrieved Apr 26, 2026).
20,442 people live in ZIP 32311, with a median age of 37.5 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
$82,392 per year (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
In ZIP 32311, 63.8% of occupied housing units are owner-occupied and 36.2% are renter-occupied (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
In ZIP 32311, 13.1% of workers work from home. Public transit is used by 1.9% of commuters (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
6.6% of the population in ZIP 32311 lives below the federal poverty line (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
94.1% of households in ZIP 32311 have broadband internet access (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
The typical home value in ZIP 32311 is $331,913, up 0.8% from a year ago (Zillow Home Value Index, retrieved May 1, 2026).
Home values are up 0.8% over the past year and up 29.3% over the past five years (Zillow Home Value Index, retrieved May 1, 2026).
The average Adjusted Gross Income reported on tax returns from ZIP 32311 (Tallahassee, FL) is $85,189 per return (IRS SOI Tax Year 2022, retrieved May 2, 2026).
Tax returns from ZIP 32311 report an average of $400 per return in real-estate tax deductions (IRS SOI Tax Year 2022, retrieved May 2, 2026).
6.9% of tax returns from ZIP 32311 (Tallahassee, FL) report Adjusted Gross Income of $200,000 or more (IRS SOI Tax Year 2022, retrieved May 2, 2026).
As of 2022, 354 business establishments operated in ZIP 32311 employing 3,558 workers (Census ZIP Business Patterns, retrieved May 3, 2026).
The average annual pay across all local establishments in ZIP 32311 is $76,654, based on Census ZIP Business Patterns 2022 data (retrieved May 3, 2026).
According to the CDC Social Vulnerability Index (2022), ZIP 32311 ranks in the 40th percentile nationally for social vulnerability — a moderate vulnerability profile (retrieved May 3, 2026).
Racial & Ethnic Minority Status is the highest-scoring CDC SVI theme for ZIP 32311, ranking in the 65th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
FEMA has recorded 36 federal disaster declarations affecting ZIP 32311 between 1973–2024 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
Hurricane is the most common federally declared disaster type affecting ZIP 32311, accounting for 19 of 36 declarations (53%, FEMA OpenFEMA, retrieved May 3, 2026).
The most recent FEMA disaster declaration affecting ZIP 32311 was "HURRICANE HELENE" — a hurricane declared in 2024 (DR-4828) (FEMA OpenFEMA, retrieved May 3, 2026).
10 colleges and universities are listed near ZIP 32311 by the U.S. Department of Education College Scorecard, including Florida State University, Tallahassee State College, and Florida Agricultural And Mechanical University (retrieved May 2, 2026).
Median in-state tuition across 10 nearby institutions is $5,656 (College Scorecard, retrieved May 2, 2026).
Graduates of nearby colleges earn a median of $35,745 ten years after entry (College Scorecard, retrieved May 2, 2026).
ZIP 32311 has an average annual temperature of 68.0°F and 59.8" of annual precipitation based on the TALLAHASSEE AP, FL US weather station 10.4 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
Yes — ZIP 32311 is part of the Tallahassee, FL urbanized area, primarily served by City of Tallahassee (National Transit Database 2024, retrieved May 4, 2026).
Florida has no state income tax. For a household earning the local median AGI of $85,189, this saves approximately $3,919 per year compared to the national average effective state tax rate. The combined state and local sales tax rate is 6.98% (Tax Foundation 2025).
Florida runs an active paid family leave program offering up to — weeks of paid leave per year (Bipartisan Policy Center 2026).
This page covers health outcomes from CDC PLACES (33 metrics), school information from NCES CCD (7 schools), 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 (10 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 (36 on record), climate normals from NOAA NCEI (1991-2020), county-level crime data from the FBI Crime Data Explorer (2024), public transit coverage from the National Transit Database (2024), and state-level tax rates from the Tax Foundation. Data is refreshed on Mubboo's standard schedule.
Health data retrieved Apr 24, 2026 from CDC PLACES. School data retrieved Apr 26, 2026 from NCES CCD. 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). 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 (36 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). Transit coverage retrieved May 4, 2026 from the National Transit Database (2024). State-level tax rates retrieved 2026-05-05 15:58:22.284+00 from the Tax Foundation.
Other ZIPs in Tallahassee
Nearby ZIPs by distance
32399 (Tallahassee, 3 mi) · 32301 (Tallahassee, 5.3 mi) · 32307 (Tallahassee, 6.7 mi) · 32308 (Tallahassee, 6.7 mi) · 32317 (Tallahassee, 6.8 mi) · 32305 (Tallahassee, 7.7 mi)
Compare ZIP-level stats — population, schools, housing, climate — across nearby areas. Source: U.S. Census Bureau ZCTA basemap.
Have a specific question about ZIP 32311?
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
40th percentile
Moderate Vulnerability
Based on 9 census tracts, population 22,761
Vulnerability Themes
Households Without Vehicle
357
Limited English Speakers
279
Persons with Disability
2,809
Without HS Diploma
887
Without Health Insurance
1,298
Adults Age 65+
3,454
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.