ZIP code 80109
Where is ZIP code 80109?
Castle Rock, Colorado
Douglas County · Standard ZIP code
ZIP code 80109 belongs to Castle Rock, Colorado in Douglas County. 80109 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Mountain Time zone and uses area codes 303, 720 and 983. About 28,400 people live in the 80109 area, where the median household income is $155,025. The closest ZIP codes are 80104 (Castle Rock, 2.5 mi east), 80163 (Littleton, 5.1 mi west) and 80108 (Castle Rock, 6.2 mi northeast).
| ZIP code | 80109 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Castle Rock |
| State | Colorado (CO) |
| County | Douglas County |
| Time zone | Mountain Time · now |
| Area codes | 303, 720, 983 |
| Coordinates | 39.3643, -104.9014 map |
| 3-digit prefix | 801 |
Population and income in 80109
| Population | 28,400 · higher than 83% of Colorado ZIP codes |
|---|---|
| People per square mile | 1,093 · higher than 77% of Colorado ZIP codes |
| Median age | 36.9 years · lower than 73% of Colorado ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $155,025 · higher than 96% of Colorado ZIP codes |
| Income per person | $62,169 |
| Below the poverty line | 3.3% |
| Bachelor’s degree or higher | 58% of adults 25+ |
| Median home value | $675,500 · higher than 81% of Colorado ZIP codes |
| Median rent | $2,304 a month |
| Housing units | 9,873 |
| Households | 9,728 (2.88 people on average) |
| Owners / renters | 81% / 19% |
| Land area | 25.99 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 80109. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 80109
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 80104 | Castle Rock, CO | 2.5 mi E | Standard |
| 80163 | Littleton, CO | 5.1 mi W | PO Box only |
| 80108 | Castle Rock, CO | 6.2 mi NE | Standard |
| 80134 | Parker, CO | 9.2 mi N | Standard |
| 80116 | Franktown, CO | 9.4 mi E | Standard |
| 80131 | Louviers, CO | 9.6 mi NW | PO Box only |
| 80135 | Sedalia, CO | 9.6 mi W | Standard |
| 80118 | Larkspur, CO | 11.6 mi S | Standard |
| 80125 | Littleton, CO | 11.7 mi NW | Standard |
| 80130 | Littleton, CO | 12.3 mi N | Standard |
| 80126 | Littleton, CO | 12.9 mi N | Standard |
| 80124 | Lone Tree, CO | 13 mi N | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 80109 or measure the distance to another ZIP code.
How to address mail to 80109
123 MAIN ST
CASTLE ROCK CO 80109
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (80109-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Castle Rock, CO
All Castle Rock ZIP codes with population and income →
Questions
- What city is ZIP code 80109?
- 80109 is a Castle Rock, Colorado ZIP code.
- What county is 80109 in?
- ZIP code 80109 is in Douglas County, Colorado.
- What time zone is ZIP code 80109 in?
- 80109 is in the Mountain Time zone (America/Denver).
- What area code is 80109?
- Phone numbers in ZIP code 80109 use area codes 303, 720 and 983.
- What is the population of ZIP code 80109?
- About 28,400 people live in ZIP code 80109, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 80109?
- The median household income in 80109 is $155,025 a year, higher than 96% of Colorado ZIP codes.
- What ZIP codes are near 80109?
- The nearest ZIP codes to 80109 are 80104 (Castle Rock, 2.5 miles), 80163 (Littleton, 5.1 miles), 80108 (Castle Rock, 6.2 miles) and 80134 (Parker, 9.2 miles).