Alma, CO · standard
ZIP Code 80420
Park County, Colorado - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 933
- 9/sq mi
- $86,705
- Median income
- $616,000
- Median home value
- 68.9%
- Bachelor's or higher
National ZIP placement
Alma pairs an above-median household income with top-decile home values, in a rural, mixed-tenure area.
- Top 30%
- household income, US ZIPs
- Top 9%
- home value, US ZIPs
- 9
- people per sq mi
- 60%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 80420 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 80420 (Alma, CO) rose +23.1% from 2023 to 2024. The all-transactions index moved from 290.7 in 2023 to 357.9 in 2024 (2000 = 100).
ZIP code 80420 is a sparsely populated ZIP (a standard USPS delivery area) in Alma, Park County, Colorado, home to just 933 residents across 102.5 square miles, a density of 9 people per square mile, in the Denver time zone.
ZIP 80420 lands in the middle-income range, with a median household income of $86,705 (2% below the average Colorado ZIP), while per-capita income is $68,745. The poverty rate is 8.3%, with unemployment at 0.1%; those measures add context to the income figure. Median home value is $616,000 (27% above the average Colorado ZIP) and median rent is $2,295; 59.8% of occupied homes are owner-occupied.
This is a highly-educated ZIP: 68.9% of adults hold a bachelor's degree or higher, the median age is 57.2, and the average commute is -. The page also surfaces 1 ZIP codes within roughly 10 miles and 6 more in Park County, so 80420 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 80420
Top 5 sectors by establishment count in Alma, CO
Which industries have the most business establishments in ZIP 80420.
- Construction
Construction
19 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
9 establishments
- Accommodation and food services
Accommodation and food services
8 establishments
- Administrative and support and waste management and remediation services 7
Administrative and support and waste management and remediation services
7 establishments
- Retail trade 6
Retail trade
6 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 80420, Alma, CO · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
933
Population
102.5
Area (sq mi)
9
People / sq mi
Denver
Time Zone
standard
ZIP Type
Who lives in ZIP 80420?
57.2
Median Age
48.8%
Male
51.2%
Female
9.1%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$86,705
Median Household Income
-2% vs state ZIP avg
$68,745
Per Capita Income
8.3%
Poverty Rate
0.1%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,161housing units
1,161
Total Housing Units
741
Occupied Units
420
Vacant Units
1.68
Avg Household Size
Occupancy Type
$616,000
Median Home Value
+27% vs state ZIP avg
$2,295
Median Rent
1978
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+23.1%
YoY Change (2024)
358
HPI Index (2000 = 100)
+258%
Total Change Since 2000
Home values in ZIP 80420 have increased 23.1% over the past year (2024). Since 2000, this ZIP has seen +258% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +0.3% | 198 |
| 2021 | +24.0% | 246 |
| 2022 | +30.3% | 320 |
| 2023 | -9.3% | 291 |
| 2024 | +23.1% | 358 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 60 business establishments in ZIP 80420, employing approximately 174 people with a combined annual payroll of $6,220,000.
60
Businesses
174
Employees
$6.2M
Annual Payroll
6
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 19 | 31.7% |
| Professional, scientific, and technical services | 9 | 15.0% |
| Accommodation and food services | 8 | 13.3% |
| Administrative and support and waste management and remediation services | 7 | 11.7% |
| Retail trade | 6 | 10.0% |
| Real estate and rental and leasing | 4 | 6.7% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 80420 vs 80440 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 80440 | Fairplay, CO | 2,422 | 9.2 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 80420, both outside CO so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.