Population & age
- Total population
- 4,059
- Median age
- 19.4
Muncie, IN (47306)
Delaware County · Muncie, IN · Population 4,059
Fresh.Data current as of Apr 24, 2026
Muncie, IN (ZIP 47306) sits in Delaware County within the Muncie metro area. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Depression comes in above the national average at 41.4%. NCES lists 2 schools serving the area, 2 non-charter. 10 colleges and universities serve the area, with median in-state tuition of $7,471. BLS QCEW reports average annual pay of $51,307 per worker, roughly 22% below the US average. The CDC SVI flags socioeconomic (90th percentile) as this ZIP's standout vulnerability dimension, sitting well above its overall 58th-percentile score. The most recent FEMA disaster declaration here was winter storm-related (SEVERE WINTER STORM, 2026). County Health Rankings reports 12,615 years of potential life lost per 100,000 (2025) — well above the national county median. 34.0% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. New residents arriving here predominantly come from Madison County, IN (IRS SOI Migration, 2022-2023). 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: fair market rent of $1,100 for a two-bedroom. Every figure on this page links to its underlying federal dataset with a retrieval date so you can audit the freshness yourself.
Loading map…
Demographics
Race & ethnicity
- White
- 74.7%
- Black
- 11.3%
- Asian
- 4.5%
- Hispanic / Latino
- 4.9%
- Other / multi-racial
- 9.1%
Education
- Bachelor's degree or higher (age 25+)
- 91.1%
Employment
- Unemployment rate
- 14.2%
Housing
- Owner-occupied
- 0
- Renter-occupied
- 0
- Vacant units
- 0
Commute
- Public transit
- 22(1.8%)
- Work from home
- 31(2.5%)
- Avg commute
- 13.8 min
Economic wellbeing
- Below poverty line
- 0
- Uninsured
- 100(2.5%)
Digital access
- Broadband access
- 0
Language & nativity
- Foreign-born
- 152(3.7%)
- Non-English at home
- 231(5.7%)
Fair Market Rent
Fresh.HUD SAFMR · May 1, 2026Studio
$850
/month
1 Bed
$900
/month
2 Bed
$1,100
/month
3 Bed
$1,430
/month
4 Bed
$1,780
/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
173
Across 122 permitted buildings. Total construction value: $45.5M.
Single-family
109
63% of total units
Multifamily (2+ unit)
64
37% of total units
Single-family value
$37.3M
construction value
Multifamily value
$8.2M
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.
Business & employment
Business establishments
7
Total employment
77
Annual payroll
$4.4M
Average annual pay
$57,727
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
$51,307
Average weekly wage
$987
Total employment
44,772
Total establishments
2,354
That is roughly 22% 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
4.7%
That is 0.7 percentage points above the US national unemployment rate of about 4.0%.
Labor force
52,882
Employed
50,386
Unemployed
2,496
Based on Delaware County, IN 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 transit
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
Anderson, IN
Reporting agencies
2
Largest: City of Anderson
Annual ridership
—
unlinked trips · 2024
Source: U.S. Federal Transit Administration, National Transit Database (transit.dot.gov). Public domain.
Federal Disaster Declarations
Federally Declared Disasters
17
Date Range
1974–2026
Most Recent Declaration
SEVERE WINTER STORM
Winter Storm — declared January 24, 2026 (DR-3641)
Incident period: January 23, 2026 – January 27, 2026
Top Incident Types
- Severe Storm6 (35%)
- Snowstorm3 (18%)
- Biological2 (12%)
- Flood2 (12%)
- Winter Storm1 (6%)
- Other3 (18%)
Individual Assistance
7
Direct help to disaster survivors
Households Program
5
Housing & temporary lodging support
Public Assistance
12
Repair of public facilities & roads
Hazard Mitigation
6
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
51.2°F
40.7° – 61.7°
Annual precipitation
41.4"
Annual snowfall
20.9"
Heating · cooling days
5,877.5 · 875.4
Annual base 65°F
Nearest station: FARMLAND 5 NNW, IN US, 14 miles from the centroid of Muncie, IN (ZIP 47306)
Source: NOAA National Centers for Environmental Information, 1991–2020 U.S. Climate Normals (ncei.noaa.gov). Public domain.
Air quality
Median daily AQI
44
GoodGood 240dModerate 126d
Peak AQI (2024)
97
Moderate
Primary pollutant
PM2.5
186 days as main pollutant
Days measured
366
Based on Delaware 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.
Community health profile
Years of potential life lost (per 100K)
12,615
That is roughly 4,415 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
22%
of adults self-report
Poor physical health days
5.0
avg per adult per month
Poor mental health days
6.6
avg per adult per month
Uninsured
8.7%
of residents under 65
Primary care MDs
114
per 100,000 residents
Preventable hospital stays
3,795
per 100K Medicare enrollees
Food environment (0-10)
6.5
10 = best access & security
Exercise access
76%
residents near a facility
Flu vaccinated
55%
of Medicare enrollees
Low birth weight (under 2,500 g) accounts for 8.6% of live births in this county — an early-life health input that downstream outcomes track against.
Based on Delaware 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
34.0% of Delaware County, IN residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
0.11
per 1,000 residents
Supercenters & clubs
0.04
per 1,000 residents
SNAP-authorized stores
1.04
accepting food benefits
Fast-food restaurants
0.79
per 1,000 residents
Among low-income residents, 12.8% 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 Delaware County, IN 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 · 22 reports
Property crime rate
—
per 100K residents · 184 reports
Homicide
2
Robbery
0
Burglary
47
Vehicle theft
26
County-level data for Delaware (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)
▲+362 people
−47 households • −$32.6M net AGI flow
Moved in
3,535households
6,012 people • $157.5M AGI
Moved out
3,582households
5,650 people • $190.1M AGI
Where new residents came from
- Madison County, IN — 397 households
- Marion County, IN — 228 households
- Henry County, IN — 156 households
- Randolph County, IN — 153 households
- Hamilton County, IN — 145 households
Where departing residents went
- Madison County, IN — 338 households
- Marion County, IN — 328 households
- Hamilton County, IN — 170 households
- Randolph County, IN — 126 households
- Henry County, IN — 108 households
Incoming households reported an average AGI of $44,548 versus departing households' $53,073.
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 Indiana
State-level rules that apply to every resident of ZIP 47306. Numbers reflect the most recent published year per source.
Tax rates
Income tax
Yes
graduated
Sales tax (combined)
7.00%
State 7.00% · avg local 0.00%
Property tax (effective)
0.70%
Median $1,432/year
Tax burden rank
10 of 50
9.00% of personal income
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 47306
Other ZIPs in Muncie
Nearby ZIPs by distance
47305 (Muncie, 1.4 mi) · 47304 (Muncie, 3.4 mi) · 47303 (Muncie, 4.7 mi) · 47302 (Muncie, 5.6 mi) · 47396 (Yorktown, 5.9 mi) · 47383 (Selma, 8.2 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
34.6%
Tracks close to the 33.0% national rate.
High Blood Pressure
16.6%
15.4pp below the 32.0% national rate.
Depression
41.4%
19.4pp above the 22.0% national rate.
Annual Checkup
72.2%
3.8pp below the 76.0% national rate.
Health Insurance
11.2%
Tracks close to the 13.0% national rate.
Diabetes
2.9%
8.1pp below the 11.0% national rate.
Schools in this ZIP
2 schools serve this ZIP, including 2 non-charter.
| School | Type | Grades | Enrollment |
|---|---|---|---|
| Burris Laboratory School | Public | 0–12 | 671 |
| Indiana Academy for Sci Math Hmn | Public | 11–12 | 200 |
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
10
Median in-state tuition
$7,471
Median earnings (10 yr)
$37,186
- 4-Year
Ball State University
Muncie, IN · 47306
- In-state tuition
- $11,082
- Out-of-state tuition
- $29,630
- Acceptance rate
- 85.5%
- Graduation rate
- 62.8%
- Median earnings (10 yr)
- $51,833
- Median student debt
- $23,250
- 4-Year
Indiana University-East
Richmond, IN · 47374
- In-state tuition
- $8,424
- Out-of-state tuition
- $22,811
- Acceptance rate
- 67.2%
- Graduation rate
- 42.3%
- Median earnings (10 yr)
- $47,156
- Median student debt
- $18,000
- 4-Year
Earlham College
Richmond, IN · 47374
- In-state tuition
- $53,930
- Out-of-state tuition
- $53,930
- Acceptance rate
- 73.1%
- Graduation rate
- 68.5%
- Median earnings (10 yr)
- $50,797
- Median student debt
- $23,488
- Certificate
Ross Medical Education Center-Muncie
Muncie, IN · 47303
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 52.4%
- Median earnings (10 yr)
- $29,898
- Median student debt
- $9,500
- Certificate
PJ's College of Cosmetology-Richmond
Richmond, IN · 47374
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- 53.3%
- Median earnings (10 yr)
- $24,039
- Median student debt
- $9,833
- 4-Year
Purdue University - Purdue Polytechnic Richmond
Richmond, IN · 47374
- In-state tuition
- $6,518
- Out-of-state tuition
- $15,579
- Acceptance rate
- —
- Graduation rate
- —
- Median earnings (10 yr)
- $72,424
- Median student debt
- $19,500
- 2-Year
Ivy Tech Community College-Muncie
Muncie, IN · 47302
- In-state tuition
- $5,154
- Out-of-state tuition
- $9,935
- Acceptance rate
- —
- Graduation rate
- —
- Median earnings (10 yr)
- $37,186
- Median student debt
- $10,727
- 2-Year
Ivy Tech Community College-Richmond
Richmond, IN · 47374
- In-state tuition
- $5,154
- Out-of-state tuition
- $9,935
- Acceptance rate
- —
- Graduation rate
- —
- Median earnings (10 yr)
- $37,186
- Median student debt
- $10,727
- Certificate
PJ's College of Cosmetology- Muncie
Muncie, IN · 47304
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- —
- Median earnings (10 yr)
- $20,392
- Median student debt
- $7,917
- 4-Year
Bethany Theological Seminary
Richmond, IN · 47374
- In-state tuition
- —
- Out-of-state tuition
- —
- Acceptance rate
- —
- Graduation rate
- —
- Median earnings (10 yr)
- —
- 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
Muncie, IN (ZIP 47306) sits in Delaware County within the Muncie metro area. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Depression comes in above the national average at 41.4%. NCES lists 2 schools serving the area, 2 non-charter. 10 colleges and universities serve the area, with median in-state tuition of $7,471. BLS QCEW reports average annual pay of $51,307 per worker, roughly 22% below the US average. The CDC SVI flags socioeconomic (90th percentile) as this ZIP's standout vulnerability dimension, sitting well above its overall 58th-percentile score. The most recent FEMA disaster declaration here was winter storm-related (SEVERE WINTER STORM, 2026). County Health Rankings reports 12,615 years of potential life lost per 100,000 (2025) — well above the national county median. 34.0% of residents in this county are flagged low-access by USDA's 2025 Food Environment Atlas — a notable supermarket-access gap. New residents arriving here predominantly come from Madison County, IN (IRS SOI Migration, 2022-2023). 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: fair market rent of $1,100 for a two-bedroom. 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 41.4%. 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 47306
What is the obesity rate in ZIP 47306?
34.6%, which is 1.6 percentage points above the national average of 33.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the depression rate in ZIP 47306?
41.4%, which is 19.4 percentage points above the national average of 22.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the high blood pressure rate in ZIP 47306?
16.6%, which is 15.4 percentage points below the national average of 32.0% (CDC PLACES, retrieved Apr 24, 2026).
How many schools are in ZIP 47306?
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 47306 have charter schools?
No charter schools are listed in ZIP 47306 by NCES CCD (retrieved Apr 27, 2026).
Are there high schools in ZIP 47306?
Yes, 2 high schools serve this ZIP: Burris Laboratory School, Indiana Academy For Sci Math Hmn. (NCES CCD, retrieved Apr 27, 2026).
What is the population of ZIP 47306?
4,059 people live in ZIP 47306, with a median age of 19.4 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How do people commute in ZIP 47306?
In ZIP 47306, 2.5% of workers work from home. Public transit is used by 1.8% of commuters (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How many businesses are in ZIP 47306?
As of 2022, 7 business establishments operated in ZIP 47306 employing 77 workers (Census ZIP Business Patterns, retrieved May 3, 2026).
What is the average salary in ZIP 47306?
The average annual pay across all local establishments in ZIP 47306 is $57,727, based on Census ZIP Business Patterns 2022 data (retrieved May 3, 2026).
How vulnerable is ZIP 47306 to disasters and public health emergencies?
According to the CDC Social Vulnerability Index (2022), ZIP 47306 ranks in the 58th percentile nationally for social vulnerability — a high vulnerability profile (retrieved May 3, 2026).
What is the biggest vulnerability factor in ZIP 47306?
Housing Type & Transportation is the highest-scoring CDC SVI theme for ZIP 47306, ranking in the 93th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
How many federally declared disasters has ZIP 47306 experienced?
FEMA has recorded 17 federal disaster declarations affecting ZIP 47306 between 1974–2026 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
What kinds of disasters most often hit ZIP 47306?
Severe Storm is the most common federally declared disaster type affecting ZIP 47306, accounting for 6 of 17 declarations (35%, FEMA OpenFEMA, retrieved May 3, 2026).
What was the most recent disaster declared for ZIP 47306?
The most recent FEMA disaster declaration affecting ZIP 47306 was "SEVERE WINTER STORM" — a winter storm declared in 2026 (DR-3641) (FEMA OpenFEMA, retrieved May 3, 2026).
What colleges are near ZIP 47306?
10 colleges and universities are listed near ZIP 47306 by the U.S. Department of Education College Scorecard, including Ball State University, Indiana University-East, and Earlham College (retrieved May 2, 2026).
What is the average tuition at colleges near ZIP 47306?
Median in-state tuition across 10 nearby institutions is $7,471 (College Scorecard, retrieved May 2, 2026).
What do graduates earn from colleges near ZIP 47306?
Graduates of nearby colleges earn a median of $37,186 ten years after entry (College Scorecard, retrieved May 2, 2026).
What is the climate like in ZIP 47306?
ZIP 47306 has an average annual temperature of 51.2°F and 41.4" of annual precipitation based on the FARMLAND 5 NNW, IN US weather station 14.0 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
Does ZIP 47306 have public transit?
Yes — ZIP 47306 is part of the Anderson, IN urbanized area, primarily served by City of Anderson (National Transit Database 2024, retrieved May 4, 2026).
What taxes apply in ZIP 47306?
Indiana has a graduated income tax with a top rate of unspecified. Combined sales tax: 7.00% (Tax Foundation 2025).
Does Indiana have paid family leave?
Indiana has no state paid family leave program (Bipartisan Policy Center 2026).
What data is available for ZIP 47306?
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 (10 institutions), local business & employment from Census ZIP Business Patterns (2022), social vulnerability scores from the CDC/ATSDR SVI (2022), federal disaster declarations from FEMA OpenFEMA (17 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.
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. 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 (17 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 near 47306
Other ZIPs in Muncie
Nearby ZIPs by distance
47305 (Muncie, 1.4 mi) · 47304 (Muncie, 3.4 mi) · 47303 (Muncie, 4.7 mi) · 47302 (Muncie, 5.6 mi) · 47396 (Yorktown, 5.9 mi) · 47383 (Selma, 8.2 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 47306?
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
58th percentile
High Vulnerability
Based on 1 census tract, population 2,619
Vulnerability Themes
Households Without Vehicle
24
Limited English Speakers
3
Persons with Disability
146
Without HS Diploma
8
Without Health Insurance
193
Adults Age 65+
10
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.