Castle Rock, CO · standard
ZIP Code 80104
Douglas County, Colorado - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 27,588
- 137/sq mi High-density area
- $134,335
- Median income Above-median income area
- $624,200
- Median home value Above-median home value
- 55.8%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Castle Rock pairs a top-decile household income with top-decile home values, in a rural, homeowner-dominated area.
- Top 6%
- household income, US ZIPs
- Top 8%
- home value, US ZIPs
- 137
- people per sq mi
- 79%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 80104 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 80104 (Castle Rock, CO) rose +1.6% from 2023 to 2024. The all-transactions index moved from 281.0 in 2023 to 285.5 in 2024 (2000 = 100).
ZIP code 80104 is a densely settled ZIP (a standard USPS delivery area) in Castle Rock, Douglas County, Colorado, with 27,588 residents across 201.1 square miles, a density of 137 people per square mile, in the Denver time zone.
ZIP 80104 skews affluent, with a median household income of $134,335 (51% above the average Colorado ZIP), while per-capita income is $59,720. Both reported hardship measures are comparatively low in absolute terms: poverty is 4.2% and unemployment is 3.8%. Housing is both higher-cost and owner-heavy: median home value is $624,200 (29% above the average Colorado ZIP), while 79.4% of occupied homes are owner-occupied and median rent is $1,880.
This is a highly-educated ZIP: 55.8% of adults hold a bachelor's degree or higher, the median age is 38.2, and the average commute is 30 minutes. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Douglas County, so 80104 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 80104
Top 5 sectors by establishment count in Castle Rock, CO
Which industries have the most business establishments in ZIP 80104.
- Professional, scientific, and technical services
Professional, scientific, and technical services
170 establishments
- Health care and social assistance
Health care and social assistance
140 establishments
- Construction
Construction
135 establishments
- Other services (except public administration)
Other services (except public administration)
126 establishments
- Retail trade
Retail trade
98 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 80104, Castle Rock, 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
27,588
Population
201.1
Area (sq mi)
137
People / sq mi
Denver
Time Zone
standard
ZIP Type
Who lives in ZIP 80104?
38.2
Median Age
49.8%
Male
50.2%
Female
5.4%
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?
$134,335
Median Household Income
+51% vs state ZIP avg
$59,720
Per Capita Income
4.2%
Poverty Rate
3.8%
Unemployment Rate
29.5 min
Mean Commute Time
How ZIP 80104 ranks among Colorado ZIPs
Castle Rock, CO household income vs. every Colorado ZIP code
Median household income among 469 reporting Colorado ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$134,335 Top 11% higher than 89% of 469 Colorado ZIPs
Each bar is a $20K-wide band; taller bars hold more Colorado ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
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
14,891housing units
14,891
Total Housing Units
14,383
Occupied Units
508
Vacant Units
2.66
Avg Household Size
Occupancy Type
$624,200
Median Home Value
+29% vs state ZIP avg
$1,880
Median Rent
2003
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
+1.6%
YoY Change (2024)
286
HPI Index (2000 = 100)
+186%
Total Change Since 2000
Home values in ZIP 80104 have increased 1.6% over the past year (2024). Since 2000, this ZIP has seen +186% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +2.1% | 202 |
| 2021 | +14.4% | 231 |
| 2022 | +15.2% | 267 |
| 2023 | +5.4% | 281 |
| 2024 | +1.6% | 286 |
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 1,153 business establishments in ZIP 80104, employing approximately 9,236 people with a combined annual payroll of $487,865,000.
1,153
Businesses
9,236
Employees
$487.9M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 170 | 14.7% |
| Health care and social assistance | 140 | 12.1% |
| Construction | 135 | 11.7% |
| Other services (except public administration) | 126 | 10.9% |
| Retail trade | 98 | 8.5% |
| Real estate and rental and leasing | 98 | 8.5% |
| Finance and insurance | 92 | 8.0% |
| Administrative and support and waste management and remediation services | 77 | 6.7% |
| Accommodation and food services | 74 | 6.4% |
| Wholesale trade | 35 | 3.0% |
| Information | 28 | 2.4% |
| Educational services | 23 | 2.0% |
| Arts, entertainment, and recreation | 21 | 1.8% |
| Transportation and warehousing | 19 | 1.6% |
| Manufacturing | 9 | 0.8% |
| Management of companies and enterprises | 4 | 0.3% |
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 80104 vs 80116 →
ZIP 80104 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 80104
Castle Rock (80104)
27,588 residents
- 80108
Castle Rock (80108)
22,612 residents
- 80109
Castle Rock (80109)
17,219 residents
- 80118 5,308
Larkspur (80118)
5,308 residents
- 80116 3,942
Franktown (80116)
3,942 residents
What this shows Among its immediate neighbors, ZIP 80104 ranks the most populous - useful context the national average alone can't give.
ZIP 80104 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 80108
Castle Rock (80108)
$181,049 median income
- 80118
Larkspur (80118)
$158,155 median income
- 80109
Castle Rock (80109)
$155,025 median income
- 80116
Franktown (80116)
$146,000 median income
- 80104
Castle Rock (80104)
$134,335 median income
What this shows By household income, ZIP 80104 ranks #5 of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 80104, both outside CO so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (27,588 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Douglas County
Related Areas
Frequently Asked Questions
What county is ZIP code 80104 in?
ZIP code 80104 (Castle Rock) is located in Douglas County, Colorado. Douglas County contains multiple ZIP codes, see the full list at /counties/douglas-co.
What is the population of ZIP code 80104?
ZIP code 80104 in Castle Rock, CO has a population of 27,588 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 80104?
The median household income in ZIP 80104 is $134,335, which is 76% above the national average of $76,288.
What is the average home value in ZIP 80104?
The median home value in ZIP 80104 is $624,200, which is 124% above the national average of $278,155.
What is the demographic makeup of ZIP 80104?
The largest racial group in ZIP 80104 is White at 80.9%. Hispanic or Latino residents make up 11.4% of the population.
How many businesses are in ZIP code 80104?
ZIP code 80104 has 1,153 business establishments employing approximately 9,236 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 80104?
The top industries by establishment count in ZIP 80104 are: Professional, scientific, and technical services (170), Health care and social assistance (140), Construction (135). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 80104?
According to the FHFA House Price Index, home values in ZIP 80104 increased by 1.6% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 186%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 80104?
In ZIP code 80104, 69.3% of residents aged 25+ have a high school diploma or higher, and 55.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 80104?
The mean commute time for workers in ZIP code 80104 is 29.5 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 80104?
In ZIP code 80104, approximately 79.4% of occupied housing units are owner-occupied and 20.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 80104?
The poverty rate in ZIP code 80104 is 4.2% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 80104's numbers, next.
- See how ZIP 80104 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Castle Rock, CO ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.