ZIP Code 80109 in Castle Rock, CO

Data Last Updated: October 1, 2025
City:Castle Rock, Colorado
County:Douglas County
Timezone:Mountain (GMT -07:00)
Local Time:7:32:34 PM
Population:27,148 [See All]
Area Codes:303 / 720 / 983
Classification:Standard [Normal Street Delivery]
Coordinates:39.3656, -104.9123
Land Area:25.989 sq mi
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Population & Demographics


ZIP Code 80109 has 27,148 residents and 8,999 households (average 2.97 persons per household). The median age is 36.9 years, about the same as the state (37.2) and slightly younger than the nation (38.8). The gender split is 49.9% male and 50.1% female, which is about the same as the national male share (49.1%). Largest groups are White (82.7%, much higher than the state average of 70.7% and well above the national average of 61.6%) and Hispanic or Latino (11.1%); Hispanic or Latino residents make up 11.1%, which is much lower than the state average (21.9%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2023 American Community Survey (ACS) 5-Year Estimates.
2020 Population:27,148Source: Census DHC
2023 ACS Population Estimate:27,795Source: Census ACS
2025 ZC Population Estimate:30,638Source: ZIP-Codes.com
Population Density:1,044.6 people per sq mile
Average Income:$148,417Source: Census ACS
Households:8,999Source: Census DHC
Average House Value:$648,900Source: Census ACS
Persons Per Household:2.97Source: Census DHC
Average Family Size:2.51Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group20102011210220132014201520162017201820192020202120222023
Census ACS Population Estimate--16,84718,09618,33118,98619,15219,79421,42722,73423,66524,55427,18727,85227,795
Decennial Census17,219------------------27,148------
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 36.9

Male Median Age: 35.9

Female Median Age: 37.7

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male9251,1721,2751,1786376367969991,1041,1911,01581457444437620413378
Female8411,0341,2421,1185496518321,0701,1671,180962807626498438259167156
Total1,7662,2062,5172,2961,1861,2871,6282,0692,2712,3711,9771,6211,200942814463300234
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:22,45982.03%
Black:4151.52%
Hispanic:*3,02711.06%
Asian:6792.48%
American Indian:1370.50%
Hawaiian:230.08%
Other:6402.34%
Total:27,380100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:13,55149.92%35.9 years
Females:13,59750.08%37.7 years
Total:27,148100%36.9 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:25,71892.53%
Native, born in PR, Island Areas, or abroad:3831.38%
Foreign born, naturalized U.S. citizen:7762.79%
Foreign born, not a U.S. citizen:9186.09%
Total Population:27,795100%
Total Native Population:26,10193.91%
Total Foreign-born Population:1,6946.09%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2023, the Median household income is $148,417, which is markedly greater than the national median ($78,538), is up $44,037 (42.2%) since 2011 and above its 2019 pre-pandemic level by $23,000. Family households earn a median of $161,346 versus $88,799 for nonfamily households (a difference of $72,547). By gender, male median income is $107,220 and female is $76,351, which is far above the national female median ($53,445), with a current gap of $30,869 that has widened from 2011 to 2023. The labor-force participation rate is 75.1%, which is much higher than the national rate (63.5%). The unemployment rate is 6.3%, which is much higher than the state rate (4.4%). The largest occupation group is Management (56.2%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type2011201220132014201520162017201820192020202120222023
Median Household Income$104,380$106,971$108,781$108,799$108,949$116,891$120,989$123,798$125,417$125,822$130,296$144,034$148,417
Median Family Income$107,149$110,840$114,598$116,023$117,742$124,560$128,903$133,346$134,868$133,674$143,389$159,519$161,346
Median NonFamily Income$61,484$59,537$59,414$61,349$56,947$57,196$55,238$54,523$58,463$80,037$82,336$90,625$88,799
Median Male Income$80,467$80,544$86,073$83,091$81,755$81,655$87,080$88,711$96,953$102,989$107,628$112,962$107,220
Median Female Income$53,568$53,114$52,449$56,063$51,522$56,598$53,054$54,787$53,315$58,234$60,505$71,560$76,351
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:14,70869.96%
Unemployed:9884.70%
Not In Labor Force:5,32625.34%
Total:21,022100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:8,26056.16%
Service:2,22015.09%
Sales and Office:3,04320.69%
Natural resources, construction, and maintenance:4252.89%
Production, transportation, and material moving:7605.17%
Total Civilian Employed Population:14,708100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2023, the median home value is $648,900, which is much higher than the national median ($303,400), is up $318,200 (96.22%) since 2011 and above its 2019 pre-pandemic level by $199,400. The median gross rent is $2,245, which is much higher than the national median ($1,348), is up $705 (45.78%) since 2011 and above its 2019 pre-pandemic level by $771. Of occupied housing, owners make up 79.34% (85.79% with a mortgage, 14.21% free-and-clear) and renters 20.66% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 1.55%, which is considerably lower than the national rate (10.43%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group2011210220132014201520162017201820192020202120222023
Median Home Value$330,700$320,700$325,200$333,800$344,500$364,900$390,000$418,300$449,500$462,800$488,100$615,200$648,900
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:1276.51%
$1,000 to $1,499:1537.84%
$1,500 to $1,999:45923.51%
$2,000 to $2,499:48324.74%
$2,500 to $2,999:32816.80%
$3,000 or more:40220.59%
No Rent:00.00%
Total:1,952100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group2011210220132014201520162017201820192020202120222023
Median Rent$1,540$1,431$1,435$1,498$1,452$1,408$1,726$1,440$1,474$1,620$1,829$1,933$2,245
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):6,43268.07%
Owner Occupied (free and clear, no mortgage):1,06511.27%
Renter Occupied:1,95220.66%
Total Occupied Housing Units:9,449100%

Occupied Housing Units:9,44998.45%
Vacant Housing Units (not graphed):1491.55%
Total Housing Units:9,598100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:8,33986.88%
Multi-Family Units:1,16712.16%
Other Units:920.96%
Total Housing Units:9,598100%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2023, 56.60% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.00%), well above both the state and national averages. High school or higher is 98.20%, which is far higher than the national rate (89.40%). The uninsured rate is 5.60%, which is falls below the national rate (8.60%). Private coverage is 84.40%, which is well above the national rate (67.30%). Public coverage is 15.60%, which is far lower than the national rate (36.30%). The share of people in poverty is 2.60%, which is far lower than the national rate (8.70%), down 3.60 percentage points since 2011 and above its 2019 pre-pandemic level by 1.60 percentage points. This suggests a positive shift in the local economic and social landscape - higher incomes, steadier consumer demand, and a strengthening tax base. Among residents ages 3+, the largest enrollment group is elementary (44.75%). College enrollment is 19.25%, which is markedly below the state rate (27.40%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:710.40%
9th to 12th grade, no diploma:2441.38%
High school graduate (includes equivalency):2,37613.46%
Some college, no degree:3,96222.44%
Associate's degree:1,0035.68%
Bachelor's degree:6,85438.82%
Graduate or professional degree:3,14417.81%
Total:17,654100%
High school or higher:17,33998.22%
Bachelor's degree or higher:9,99856.63%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:23,12679.96%
Public Insurance:4,26114.73%
No Insurance:1,5345.30%
Total:28,921100%
Has Health Insurance:27,38794.70%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2023)


Group2011210220132014201520162017201820192020202120222023
% of People in Poverty6.2%5.5%5.0%2.8%1.8%1.0%0.9%0.8%1.0%1.1%1.2%1.1%2.6%
Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:5346.67%
Kindergarten:3153.93%
Elementary school (grades 1-8):3,58544.75%
High school (grades 9-12):2,03525.40%
College or graduate school:1,54219.25%
Total:8,011100%
Early Childhood:84910.60%
K-12 (Primary & Secondary School):5,93574.09%
Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 80109 supports both business and residential activity. According to the Business Census (2023), there are 644 business establishments, employing about 5,224 people with an annual payroll of $290,812,000. USPS data shows 10,316 residential mailboxes and 458 business mailboxes, reflecting local delivery coverage.

# Residential Mailboxes:10,316Source: USPS
# Business Mailboxes:458Source: USPS
Total Delivery Receptacles:19,185Source: USPS
Single Family Delivery Units:2,497Source: USPS
Multi Family Delivery Units:943Source: USPS
# of Businesses:644Source: CBP
1st Quarter Payroll:$74,811,000Source: CBP
Annual Payroll:$290,812,000Source: CBP
# of Employees:5,224Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 80109 is located in Douglas County, Colorado, within the Denver-Aurora-Centennial, CO Metropolitan Statistical Area (CBSA 19740) and Colorado's 4th Congressional District. This Metro area has a population of 2,977,085 people, about 0.91% of whom live in ZIP Code 80109. It covers 25.989 sq mi of land and a water area of 0.006 sq mi.

CBSA Name:Denver-Aurora-Centennial, COSource: Census
CBSA Number:19740Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:2,977,085Source: Census
MSA:Denver-Boulder-Greeley, CO CMSASource: Census
Land Area:25.989 sq miSource: Census
Water Area:0.006 sq miSource: Census
Congressional District:04Source: USPS
Congressional Land Area:38102.67 sq miSource: Census
PMSA:Denver, CO PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:0812415Source: Census
Place Name:Castle Rock town; ColoradoSource: Census

Adjacent & Nearby ZIP Codes


80110 | | 80108

Schools in ZIP Code 80109


ZIP Code 80109 is in the Douglas County School District RE-1, which serves grades Pre-Kindergarten thru 12th. There are 6 public schools and 1 private school(s) in this ZIP Code. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Castle Rock Middle School 2575 Meadows Boulevard
Castle Rock, CO 80109
District: Douglas County School District RE-1
Meadow View Elementary School 3700 Butterfield Crossing
Castle Rock, CO 80109
District: Douglas County School District RE-1
Soaring Hawk Elementary School 4665 Tanglevine Drive
Castle Rock, CO 80109
District: Douglas County School District RE-1
Castle View High School 5254 North Meadows Dr
Castle Rock, CO 80109
District: Douglas County School District RE-1
Clear Sky Elementary 1470 Clear Sky Way
Castle Rock, CO 80109
District: Douglas County School District RE-1
Aspen View Academy 2131 Low Meadow Blvd
Castle Rock, CO 80109
District: Douglas County School District RE-1
Castle Rock Christian Academy 4881 Cherokee Dr
Castle Rock, CO 80109
District: Private School

Colleges & Post Secondary Schools near ZIP Code 80109


Stacey James Institute 16534 Keystone Boulevard, Unit C
Parker, CO 80134-3358
Type: Post Secondary
Rocky Vista University 8401 S Chambers Road
Parker, CO 80134
Type: Post Secondary
Columbia College - Denver 6892 S. Yosemite Ct Suite 3-100
Centennial, CO 80112-1464
Type: Post Secondary
Denver Seminary 6399 S. Santa Fe Drive
Littleton, CO 80120
Type: Post Secondary
Arapahoe Community College 5900 S. Santa Fe Dr.
Littleton, CO 80160-9002
Type: Post Secondary
United College Of Health And Beauty 4219 South Broadway
Englewood, CO 80113-4634
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on October 1, 2025.

  1. U.S. Postal Service [Last Updated: 10/1/2025], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 10/1/2025], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2023 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 10/1/2025], https://nces.ed.gov