Pest control · Castle Rock, Colorado
Pest control in Castle Rock, CO
Termites, ants, roaches, scorpions or rodents? 74% of Castle Rock's homes are detached houses[1], and 39% were built since 2010. Request a licensed pest-control company that services the area. Castle Rock, in Douglas County — ZIPs 80104, 80109, 80108, counts 83,815 residents (2025 estimate)[2].
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Castle Rock at a glance for pest control
- Population (2025 est.)
- 83,815[2]+14.6% since 2020
- County
- Douglas[2]
- Land area
- 34.7 sq mi[3]
- Detached single-family homes
- 74%[1]the 2nd-highest share of the 15 Denver-area suburbs we cover
- Homes built 2010 or later
- 39%[1]the highest share of the 15 Denver-area suburbs we cover
- Households renting
- 21%[1]2020–2024
- Population change, 2020–2025
- +14.6%[2]the 2nd-fastest-growing of the 15 Denver-area suburbs we cover
- Land area
- 34.7 sq mi[3]city limits
What the local data means for pest control in Castle Rock
Castle Rock is one of the fastest-growing Denver-metro suburbs tracked here: 83,815 people (2025 estimate), up 14.6% since 2020[2]. On the map that's 34.7 square miles holding 2,412 residents per square mile, the 11th densest of the suburbs here; it sits entirely in Douglas County, with ZIP codes 80104, 80109, 80108[3].
Building amid 14.6% growth since 2020 pushes construction into previously open land, which stirs up the pests already living there — and denser housing gives them more neighboring homes to visit.
Mail to Castle Rock goes through 3 ZIP codes — 80104 (40% of the city's land), 80109 (37% of the city's land), 80108 (22% of the city's land)[4].
The closest tracked neighbours are Parker (9.9 mi NE), Centennial (14.8 mi N) and Littleton (17.3 mi NW)[3].
74% of Castle Rock's 29,159 housing units are detached houses[1] — the 2nd-highest share of the 15 Denver-area suburbs we cover; nearby, Parker (70%), Centennial (73%), and Littleton (48%). Perimeter, slab-edge and termite plans are mostly individual homeowner decisions here.
39% of homes were built in 2010 or later[1] (the highest share of the 15 Denver-area suburbs we cover; Parker (29%), Centennial (7%), and Littleton (10%) nearby), and population changed +14.6% from 2020 to 2025[2]. Many owners here can still check for a builder termite pre-treatment and warranty.
About 2,412 people live per square mile of land across 34.7 square miles[2][3] — the 5th-least dense of the 15 Denver-area suburbs we cover. More yard between houses puts the focus on the foundation perimeter and entry points.
21% of households rent and 79% own[1].
Measured against the 15 suburbs on this site, Castle Rock records the newest housing (by median year built) (2007)[1], the fewest flood reports nearby (1)[5], the 2nd-highest share of detached houses (74%)[1], and the 2nd-fastest growth since 2020 (14.6%)[2].
pest control help in Castle Rock: what to do next
Requests go to Pest control contractors serving the Castle Rock area — ZIP codes 80104, 80109, 80108.
Before you pick up the phone: choosing a pest-control plan
The Castle Rock numbers behind this page
| Measure | Castle Rock | Median of 15 | Difference |
|---|---|---|---|
| Growth since 2020 | 14.6% | 4.2% | 10 pts faster |
| Flood reports (10 mi) | 1 | 6 | 5 fewer |
| Renter-occupied | 21% | 37% | 16 pts lower |
| Detached single-family | 74% | 58% | 15 pts higher |
| Residents per sq mi | 2,412 | 3,151 | 23% less dense |
| Median year built | 2007 | 1987 | 20 years newer |
Largest differences first. Medians are the middle value across the covered Denver-area suburbs, from the same sources.
| City | People / sq mi | Growth since 2020 | Population |
|---|---|---|---|
| Castle Rock | 2,412 | 14.6% | 83,815 |
| Parker 9.9 mi | 2,939 | 13.0% | 65,985 |
| Centennial 14.8 mi | 3,603 | 0.6% | 108,658 |
| Littleton 17.3 mi | 3,665 | 1.3% | 46,246 |
| Englewood 20.2 mi | 5,381 | 4.9% | 35,305 |
| Aurora 24.1 mi | 2,498 | 6.2% | 410,053 |
| Measure | Value |
|---|---|
| Housing units | 29,159 |
| Detached single-family | 21,495 (74%) |
| Occupied homes | 28,219 |
| Owner-occupied | 22,227 (79%) |
| Renter-occupied | 5,992 (21%) |
| Median home value | $652,900 |
ACS 2020–2024 estimates.
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 2,412 | 8.3% | ±296 |
| 2010 to 2019 | 8,989 | 30.8% | ±688 |
| 2000 to 2009 | 9,352 | 32.1% | ±693 |
| 1990 to 1999 | 4,645 | 15.9% | ±615 |
| 1980 to 1989 | 1,637 | 5.6% | ±327 |
| 1970 to 1979 | 1,449 | 5.0% | ±354 |
| 1960 to 1969 | 278 | 1.0% | ±110 |
| 1950 to 1959 | 249 | 0.9% | ±144 |
| 1940 to 1949 | 72 | 0.2% | ±71 |
| 1939 or earlier | 76 | 0.3% | ±61 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| ZIP (ZCTA) | Share of Castle Rock's land | Share of the ZIP inside the city |
|---|---|---|
| 80104 | 40% | 19% |
| 80109 | 37% | 49% |
| 80108 | 22% | 22% |
Castle Rock pest control questions
My Castle Rock home is new — do I need termite protection?
Check your closing documents for a builder termite pre-treatment and warranty first. 39% of Castle Rock homes were built in 2010 or later[1].
I rent in Castle Rock. Who pays for pest control?
Your lease decides. 21% of Castle Rock households rent[1].
Which areas does this page cover?
ZIP 80104, 80109, and 80108[4], Douglas County. Nearest suburbs with their own pages: Parker (9.9 mi), Centennial (14.8 mi), and Littleton (17.3 mi)[3].
My Castle Rock home is fairly new — could the termite pre-treatment still be under warranty?
Possibly: 39% of Castle Rock's housing units were built in 2010 or later[1], the highest share of the 15 Denver-area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.
Sources
- Census ACS 2020–2024 5-year (keyless bulk)
- Census population estimates, Vintage 2025
- Census Gazetteer 2025
- Census 2020 ZCTA–place file
- NOAA Storm Events Database
Data pulled Sep 28, 2026. Full citations and method.