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ZIP Code · CO

ZIP 80109

Pop. 28,400·Douglas County·20th most expensive ZIP in Colorado
Median rent (all units)
$2,699/mo
Year-over-Year
+11.8%
Month-over-Month
+0.7%
vs US Median
+$734
Rising (Monthly)
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Most AffordableMost Expensive
ZIP 80109 · $2,699
More expensive than 84% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$2,010
1 BR
$2,140
2 BR
$2,550
3 BR
$3,340
4 BR+
$3,720
Research median
$2,550/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: July 20, 2026

Annual cost
$32,388/yr
At $2,699/mo median
Location
StateCO
CountyDouglas County
Rent Market Meter
Strong Landlord's Market
Renter's MarketBalancedLandlord's Market
Rents are up 11.8% year-over-year. Expect competition, and move quickly to lock in terms.
Based on rent-price momentum (+11.8% YoY, +0.7% MoM), not inventory.
Demographics

Who lives here

ZIP 80109 (Castle Rock, CO) is majority owner-occupied, has a large share of families with children, has a median income above the national average, 57.8% of residents hold a bachelor's degree or higher.

Population
28,400
Median income
$155,025
Median age
36.9
Renters
18.6%
Age distribution
27.3%
19.7%
31.6%
Under 1827.3%
18–3419.7%
35–5431.6%
55–6411.5%
65+9.9%
Gender
49.9%
50.1%
Male49.9%
Female50.1%
Race & ethnicity
83.1%
White83.1%
Black1%
Hispanic11.1%
Asian2.4%
Other2.5%
Education (25+)
12.2%
28.3%
57.8%
No HS diploma1.7%
HS diploma12.2%
Some college28.3%
Bachelor's+57.8%
Housing tenure
81.4%
18.6%
Owner81.4%
Renter18.6%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 80109 in Castle Rock, CO has changed in 5 years

Rent
$2,152 → $2,699
up 25.4%
Income
$130,296 → $155,025
up 19.0%
Population
27,187 → 28,400
up 4.5%
Renter share
18.6% → 18.6%
+0.0 pts
Bachelor's+
56.5% → 57.8%
+1.3 pts
Median age
35.1 → 36.9
+1.8 yrs

Rent in ZIP 80109 in Castle Rock, CO has climbed 25.4% since 2021, going from about $2,152 per month to roughly $2,699 today. Median household income grew from $130,296 to $155,025 between 2021 and 2024, a 19.0% shift. Rent outpaced income growth by roughly 6.4 percentage points, which means renters are spending a larger slice of each paycheck on housing than they did in 2021. Headcount in the area went from 27,187 to 28,400 between 2021 and 2024, a 4.5% change. Taken together, the five-year picture in ZIP 80109 in Castle Rock, CO reflects how housing costs and the people paying them have evolved through a stretch that included a pandemic, a hot rental market, and a recent cooling phase.

Community

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Local insights

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About renting in ZIP 80109

Last updated: July 20, 2026

ZIP code 80109 covers Castle Rock, CO. The median rent here is $2,699/mo as of July 2026. A 1-bedroom rents for a median of $2,140/mo. A 2-bedroom rents for a median of $2,550/mo.

At 21% of local median household income ($155,025/yr), ZIP 80109 ranks as affordable compared to the national benchmark of 30%. Rents have increased 11.8% over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 80109?

As of July 20, 2026, the median monthly rent in ZIP 80109 (Castle Rock, CO) is $2,699. This is based on aggregated data from public sources and community submissions.

How does ZIP 80109 rent compare to the US average?

ZIP 80109's median rent of $2,699/mo is $734 (37%) above the US national median of $1,965/mo.

How does ZIP 80109 compare to other ZIPs in Colorado?

ZIP 80109 is one of the pricier ZIP codes in Colorado, ranking #20 out of 166 ZIPs tracked at $2,699/mo.

How much income do you need to rent in ZIP 80109?

To keep rent at or below 30% of gross income, you would need to earn at least $108,000/year (~$52/hour full-time) to afford the median rent of $2,699/mo in ZIP 80109. The local median household income is $155,025/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 80109?

Rent in ZIP 80109 has increased 11.8% over the past year as of July 20, 2026, putting upward pressure on renter budgets.

Is ZIP 80109 an affordable place to rent?

ZIP 80109 is considered very affordable for renters. At $2,699/mo, rent takes approximately 21% of the local median household income ($155,025/yr). The standard benchmark is 30%. ZIP 80109 falls comfortably within that range.

What percentage of ZIP 80109 residents rent vs. own?

According to Census data, approximately 18.6% of ZIP 80109 households are renters, while 81.4% are owner-occupied. ZIP 80109 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 80109 compare to the rest of Castle Rock?

ZIP 80109 is pricier than Castle Rock as a whole. At $2,699/mo, it's $206 above the Castle Rock citywide median of $2,493/mo.

When was rent data for ZIP 80109 last updated?

Rent data for ZIP 80109 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
21%
VERY AFFORDABLE

At $2,699/mo, rent takes ~21% of ZIP 80109's median household income ($155,025/yr). The standard benchmark is 30%.

ZIP 80109 21%Benchmark 30%
State income tax4.4%
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Schools nearby

Public schools near ZIP 80109 (Castle Rock, CO)

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