Population & age
- Total population
- 1,430
- Median age
- 49.1
Indian Hills, CO (80454)
Jefferson County · Denver-Aurora-Centennial, CO · Population 1,430
Fresh.Data current as of Apr 24, 2026
Indian Hills, CO (ZIP 80454) sits in Jefferson County within the Denver-Aurora-Centennial metro area. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Obesity comes in below the national average at 23.5%. NCES lists 1 schools serving the area, 1 non-charter. 1 college or university serves the area, with median in-state tuition of $21,914. Social vulnerability is low in this ZIP at the 6th percentile (CDC SVI), reflecting strong baseline resilience to public-health emergencies and natural disasters. The most recent FEMA disaster declaration here was fire-related (QUARRY FIRE, 2024). Annual average temperature is just 44.7°F per NOAA's 1991–2020 Climate Normals — a notably cold-weather climate. Fast-food restaurants outnumber grocery stores roughly 7-to-1 per capita (USDA Food Environment Atlas) — a "food swamp" pattern often linked to higher diet-related disease prevalence. New residents arriving here predominantly come from Denver County, CO (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: median household income $166,587, fair market rent of $2,460 for a two-bedroom, and a typical home value of $688,411, down 2.7% 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
- 86.8%
- Black
- 0.0%
- Asian
- 1.7%
- Hispanic / Latino
- 4.6%
- Other / multi-racial
- 11.5%
Income & housing
- Median household income
- $166,587
- Median home value
- $695,100
Education
- Bachelor's degree or higher (age 25+)
- 56.5%
Employment
- Unemployment rate
- 0.0%
Housing
- Owner-occupied
- 581(96.2%)
- Renter-occupied
- 23(3.8%)
- Vacant units
- 47
- Built (median)
- 1962
Commute
- Public transit
- 0(0.0%)
- Work from home
- 363(47.9%)
- Avg commute
- 12.2 min
Economic wellbeing
- Below poverty line
- 65(4.5%)
- Uninsured
- 0(0.0%)
Digital access
- Broadband access
- 604(100.0%)
Language & nativity
- Foreign-born
- 50(3.5%)
- Non-English at home
- 0(0.0%)
Fair Market Rent
Fresh.HUD SAFMR · May 1, 2026Studio
$1,930
/month
1 Bed
$2,060
/month
2 Bed
$2,460
/month
3 Bed
$3,220
/month
4 Bed
$3,580
/month
HUD Fair Market Rents represent the 40th percentile of standard-quality rental housing in this area. FY2026 data.
Home values
Typical home value
$688,411
Zillow Home Value Index (ZHVI) · as of March 2026
Year-over-year change
-2.7%
vs. March 2025
5-year change
+15.0%
vs. March 2021
Metro area
Denver-Aurora-Lakewood, CO
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
1,172
Across 955 permitted buildings. Total construction value: $401.1M.
Single-family
932
80% of total units
Multifamily (2+ unit)
240
20% of total units
Single-family value
$354.6M
construction value
Multifamily value
$46.5M
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
59
Total employment
133
Annual payroll
$7.2M
Average annual pay
$54,414
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
$78,598
Average weekly wage
$1,512
Total employment
248,082
Total establishments
25,019
That is roughly 20% above 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
4.1%
That tracks the US national unemployment rate of about 4.0%.
Labor force
340,704
Employed
326,724
Unemployed
13,980
Based on Jefferson County, CO 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
Denver--Aurora, CO
Reporting agencies
2
Largest: Denver Regional Council of Governments
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
15
Date Range
1969–2024
Most Recent Declaration
QUARRY FIRE
Fire — declared August 1, 2024 (DR-5526)
Incident period: August 1, 2024 – August 7, 2024
Top Incident Types
- Fire5 (33%)
- Flood5 (33%)
- Biological2 (13%)
- Snowstorm2 (13%)
- Coastal Storm1 (7%)
Individual Assistance
3
Direct help to disaster survivors
Households Program
2
Housing & temporary lodging support
Public Assistance
14
Repair of public facilities & roads
Hazard Mitigation
5
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
44.7°F
29.1° – 60.3°
Annual precipitation
18.6"
Annual snowfall
80.8"
Heating · cooling days
7,467.1 · 99.3
Annual base 65°F
Nearest station: EVERGREEN, CO US, 3.6 miles from the centroid of Indian Hills, CO (ZIP 80454)
Source: NOAA National Centers for Environmental Information, 1991–2020 U.S. Climate Normals (ncei.noaa.gov). Public domain.
Air quality
Median daily AQI
50
GoodGood 192dModerate 137dUSG 30dUnhealthy 7d
Peak AQI (2024)
174
Unhealthy
Primary pollutant
Ozone
366 days as main pollutant
Days measured
366
Based on Jefferson 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)
6,799
That is roughly 1,401 years per 100,000 below the national county median (~8,200).
Premature death is the headline composite outcome CHR reports — age-adjusted, all-cause, before age 75.
Fair or poor health
13%
of adults self-report
Poor physical health days
3.7
avg per adult per month
Poor mental health days
5.3
avg per adult per month
Uninsured
6.3%
of residents under 65
Primary care MDs
88
per 100,000 residents
Preventable hospital stays
1,527
per 100K Medicare enrollees
Food environment (0-10)
8.9
10 = best access & security
Exercise access
99%
residents near a facility
Flu vaccinated
52%
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 Jefferson 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
23.2% of Jefferson County, CO residents live more than 1 mile (urban) or 10 miles (rural) from the nearest supermarket.
Grocery stores
0.10
per 1,000 residents
Supercenters & clubs
0.03
per 1,000 residents
SNAP-authorized stores
0.46
accepting food benefits
Fast-food restaurants
0.73
per 1,000 residents
Among low-income residents, 3.5% 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 Jefferson County, CO 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 · 430 reports
Property crime rate
—
per 100K residents · 2,356 reports
Homicide
3
Robbery
39
Burglary
393
Vehicle theft
350
County-level data for Jefferson (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)
▼−702 people
+1,669 households • +$54.0M net AGI flow
Moved in
32,859households
46,344 people • $2.7B AGI
Moved out
31,190households
47,046 people • $2.7B AGI
Where new residents came from
- Denver County, CO — 7,255 households
- Adams County, CO — 2,833 households
- Arapahoe County, CO — 2,515 households
- Boulder County, CO — 1,060 households
- Douglas County, CO — 1,050 households
Where departing residents went
- Denver County, CO — 5,051 households
- Adams County, CO — 3,327 households
- Arapahoe County, CO — 2,398 households
- Douglas County, CO — 1,540 households
- Boulder County, CO — 813 households
Incoming households reported an average AGI of $82,543 versus departing households' $85,228.
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 Colorado
State-level rules that apply to every resident of ZIP 80454. Numbers reflect the most recent published year per source.
Tax rates
Income tax
Yes
graduated
Sales tax (combined)
7.89%
State 2.90% · avg local 4.99%
Property tax (effective)
0.48%
Median $1,025/year
Tax burden rank
22 of 50
9.60% of personal income
For ZIP 80454: Applied to this ZIP's typical home value of $688,411, that works out to roughly $3,273/year in property tax.
Paid family leave
Program
FAMLI
Mandatory (state-run insurance)
Max weeks/year
16
Parental
12wk
Max weekly benefit
$1,381
Replacement: 90% AWW up to 0.5x SAWW + 50% above · job protection
Safety net
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 near 80454
Nearby ZIPs by distance
80453 (Idledale, 2.4 mi) · 80465 (Dakota Ridge, 2.7 mi) · 80457 (Kittredge, 3.1 mi) · 80228 (Lakewood, 6 mi) · 80401 (Golden, 6.2 mi) · 80419 (Golden, 7.2 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
23.5%
9.5pp below the 33.0% national rate.
High Blood Pressure
31.6%
Tracks close to the 32.0% national rate.
Depression
22.7%
Tracks close to the 22.0% national rate.
Annual Checkup
76.3%
Tracks close to the 76.0% national rate.
Health Insurance
5.3%
7.7pp below the 13.0% national rate.
Diabetes
9.2%
Tracks close to the 11.0% national rate.
Schools in this ZIP
1 school serves this ZIP, including 1 non-charter.
| School | Type | Grades | Enrollment |
|---|---|---|---|
| Parmalee Elementary School | Public | 0–5 | 274 |
Schools listed from NCES Common Core of Data via the Urban Institute Education Data Portal.
Fresh.NCES CCD via Urban Institute EDP · Apr 27, 2026Colleges & universities nearby
Colleges in this area
1
Median in-state tuition
$21,914
Median earnings (10 yr)
$97,335
- 4-Year
Colorado School of Mines
Golden, CO · 80401
- In-state tuition
- $21,914
- Out-of-state tuition
- $45,824
- Acceptance rate
- 60.7%
- Graduation rate
- 80.9%
- Median earnings (10 yr)
- $97,335
- Median student debt
- $23,000
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
Indian Hills, CO (ZIP 80454) sits in Jefferson County within the Denver-Aurora-Centennial metro area. The page draws on 2 federal data feeds retrieved Apr 27. Top health signal: Obesity comes in below the national average at 23.5%. NCES lists 1 schools serving the area, 1 non-charter. 1 college or university serves the area, with median in-state tuition of $21,914. Social vulnerability is low in this ZIP at the 6th percentile (CDC SVI), reflecting strong baseline resilience to public-health emergencies and natural disasters. The most recent FEMA disaster declaration here was fire-related (QUARRY FIRE, 2024). Annual average temperature is just 44.7°F per NOAA's 1991–2020 Climate Normals — a notably cold-weather climate. Fast-food restaurants outnumber grocery stores roughly 7-to-1 per capita (USDA Food Environment Atlas) — a "food swamp" pattern often linked to higher diet-related disease prevalence. New residents arriving here predominantly come from Denver County, CO (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: median household income $166,587, fair market rent of $2,460 for a two-bedroom, and a typical home value of $688,411, down 2.7% 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.
- With fair market rent at $2,460/month (HUD SAFMR) and median household income at $166,587 (Census ACS), housing costs represent approximately 18% of income.
- A median household income of $166,587 (Census ACS) aligns with a 23.5% obesity rate (CDC PLACES), below the ~33% national figure — a pattern that correlates with higher-income areas.
One concrete reading worth keeping: Depression prevalence sits near the national rate at 22.7%. 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 80454
What is the obesity rate in ZIP 80454?
23.5%, which is 9.5 percentage points below the national average of 33.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the depression rate in ZIP 80454?
22.7%, which is 0.7 percentage points above the national average of 22.0% (CDC PLACES, retrieved Apr 24, 2026).
What is the high blood pressure rate in ZIP 80454?
31.6%, which is 0.4 percentage points below the national average of 32.0% (CDC PLACES, retrieved Apr 24, 2026).
How many schools are in ZIP 80454?
1 school serves this ZIP, including 1 public school (NCES CCD, retrieved Apr 27, 2026). No charter schools are listed in this ZIP by NCES CCD.
Does ZIP 80454 have charter schools?
No charter schools are listed in ZIP 80454 by NCES CCD (retrieved Apr 27, 2026).
Are there high schools in ZIP 80454?
No high schools are listed in this ZIP by NCES CCD (retrieved Apr 27, 2026).
What is the population of ZIP 80454?
1,430 people live in ZIP 80454, with a median age of 49.1 (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the median household income in ZIP 80454?
$166,587 per year (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
Is ZIP 80454 mostly renters or homeowners?
In ZIP 80454, 96.2% of occupied housing units are owner-occupied and 3.8% are renter-occupied (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
How do people commute in ZIP 80454?
In ZIP 80454, 47.9% 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 80454?
4.5% of the population in ZIP 80454 lives below the federal poverty line (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What percentage of households in ZIP 80454 have broadband internet?
100.0% of households in ZIP 80454 have broadband internet access (Census ACS 5-Year 2022, retrieved Apr 30, 2026).
What is the typical home value in ZIP 80454?
The typical home value in ZIP 80454 is $688,411, down 2.7% from a year ago (Zillow Home Value Index, retrieved May 1, 2026).
Are home values rising or falling in ZIP 80454?
Home values are down 2.7% over the past year and up 15.0% over the past five years (Zillow Home Value Index, retrieved May 1, 2026).
How many businesses are in ZIP 80454?
As of 2022, 59 business establishments operated in ZIP 80454 employing 133 workers (Census ZIP Business Patterns, retrieved May 3, 2026).
What is the average salary in ZIP 80454?
The average annual pay across all local establishments in ZIP 80454 is $54,414, based on Census ZIP Business Patterns 2022 data (retrieved May 3, 2026).
How vulnerable is ZIP 80454 to disasters and public health emergencies?
According to the CDC Social Vulnerability Index (2022), ZIP 80454 ranks in the 6th percentile nationally for social vulnerability — a low vulnerability profile (retrieved May 3, 2026).
What is the biggest vulnerability factor in ZIP 80454?
Racial & Ethnic Minority Status is the highest-scoring CDC SVI theme for ZIP 80454, ranking in the 31th percentile nationally (CDC/ATSDR Social Vulnerability Index 2022, retrieved May 3, 2026).
How many federally declared disasters has ZIP 80454 experienced?
FEMA has recorded 15 federal disaster declarations affecting ZIP 80454 between 1969–2024 (FEMA OpenFEMA Disaster Declarations, retrieved May 3, 2026).
What kinds of disasters most often hit ZIP 80454?
Fire is the most common federally declared disaster type affecting ZIP 80454, accounting for 5 of 15 declarations (33%, FEMA OpenFEMA, retrieved May 3, 2026).
What was the most recent disaster declared for ZIP 80454?
The most recent FEMA disaster declaration affecting ZIP 80454 was "QUARRY FIRE" — a fire declared in 2024 (DR-5526) (FEMA OpenFEMA, retrieved May 3, 2026).
What colleges are near ZIP 80454?
1 college or university is listed near ZIP 80454 by the U.S. Department of Education College Scorecard, including Colorado School Of Mines (retrieved May 2, 2026).
What is the average tuition at colleges near ZIP 80454?
Median in-state tuition across 1 nearby institution is $21,914 (College Scorecard, retrieved May 2, 2026).
What do graduates earn from colleges near ZIP 80454?
Graduates of nearby colleges earn a median of $97,335 ten years after entry (College Scorecard, retrieved May 2, 2026).
What is the climate like in ZIP 80454?
ZIP 80454 has an average annual temperature of 44.7°F and 18.6" of annual precipitation based on the EVERGREEN, CO US weather station 3.6 miles from the ZIP centroid (NOAA 1991–2020 Climate Normals, retrieved May 8, 2026).
Does ZIP 80454 have public transit?
Yes — ZIP 80454 is part of the Denver--Aurora, CO urbanized area, primarily served by Denver Regional Council of Governments (National Transit Database 2024, retrieved May 4, 2026).
What taxes apply in ZIP 80454?
Colorado has a graduated income tax with a top rate of unspecified. Combined sales tax: 7.89% (Tax Foundation 2025).
Does Colorado have paid family leave?
Colorado runs an active paid family leave program (FAMLI) offering up to 16 weeks of paid leave per year, with a maximum weekly benefit of $1,381 (Bipartisan Policy Center 2026).
What data is available for ZIP 80454?
This page covers health outcomes from CDC PLACES (33 metrics), school information from NCES CCD (1 school), 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 (1 institution), local business & employment from Census ZIP Business Patterns (2022), social vulnerability scores from the CDC/ATSDR SVI (2022), federal disaster declarations from FEMA OpenFEMA (15 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). Home values retrieved May 1, 2026 from Zillow Research. 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 (15 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 80454
Nearby ZIPs by distance
80453 (Idledale, 2.4 mi) · 80465 (Dakota Ridge, 2.7 mi) · 80457 (Kittredge, 3.1 mi) · 80228 (Lakewood, 6 mi) · 80401 (Golden, 6.2 mi) · 80419 (Golden, 7.2 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 80454?
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
6th percentile
Low Vulnerability
Based on 1 census tract, population 746
Vulnerability Themes
Households Without Vehicle
1
Limited English Speakers
6
Persons with Disability
52
Without HS Diploma
1
Without Health Insurance
6
Adults Age 65+
178
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.