Pest control · Arnold, Missouri
Pest control in Arnold, MO
Termites, ants, roaches, scorpions or rodents? 79% of Arnold's homes are detached houses[1], and 6% were built since 2010. Request a licensed pest-control company that services the area. Arnold, in Jefferson County — ZIP 63010, counts 20,994 residents (2025 estimate)[2].
Request helpDo you need a pest pro, or can you handle it?
Answer a few questions to see what to do first.
Arnold pest control snapshot: the key figures
- Population (2025 est.)
- 20,994[2]+0.5% since 2020
- County
- Jefferson[2]
- Land area
- 11.5 sq mi[3]
- Detached single-family homes
- 79%[1]the 5th-highest share of the 15 St. Louis–area suburbs we cover
- Homes built 2010 or later
- 6%[1]the 8th-highest share of the 15 St. Louis–area suburbs we cover
- People per square mile of land
- 1,827[2][3]the 5th-least dense of the 15 St. Louis–area suburbs we cover
- Households renting
- 20%[1]2020–2024
- Population change, 2020–2025
- +0.5%[2]the 6th-fastest-growing of the 15 St. Louis–area suburbs we cover
- Land area
- 11.5 sq mi[3]city limits
What the local data means for pest control in Arnold
Arnold counts 20,994 residents (2025 estimate), growing at a middle-of-the-pack 0.5% since 2020[2]. The city spans 11.5 square miles at 1,827 residents per square mile (the 11th densest) and sits entirely in Jefferson County, served by ZIP code 63010[3].
Building amid 0.5% 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.
63010 is the city's single ZIP code[4].
The tracked suburbs closest by are Kirkwood (11.0 mi N), Webster Groves (11.1 mi N) and Ballwin (15.2 mi NW)[3].
79% of Arnold's 8,982 housing units are detached houses[1] — the 5th-highest share of the 15 St. Louis–area suburbs we cover; nearby, Kirkwood (75%), Webster Groves (79%), and Ballwin (81%). Perimeter, slab-edge and termite plans are mostly individual homeowner decisions here.
6% of homes were built in 2010 or later[1] (the 8th-highest share of the 15 St. Louis–area suburbs we cover; Kirkwood (9%), Webster Groves (3%), and Ballwin (3%) nearby), and population changed +0.5% from 2020 to 2025[2]. Most houses here are past any builder termite warranty.
About 1,827 people live per square mile of land across 11.5 square miles[2][3] — the 5th-least dense of the 15 St. Louis–area suburbs we cover. More yard between houses puts the focus on the foundation perimeter and entry points.
20% of households rent and 80% own[1].
Finding pest control help around Arnold
Pest control contractors taking requests around Arnold cover ZIP code 63010.
Before reaching out: choosing a pest-control plan
The Arnold numbers behind this page
| Measure | Arnold | Median of 15 | Difference |
|---|---|---|---|
| Growth since 2020 | 0.5% | -1.3% | 2 pts faster |
| Residents per sq mi | 1,827 | 2,728 | 33% less dense |
| Renter-occupied | 20% | 23% | 3 pts lower |
| Flood reports (10 mi) | 15 | 14 | 1 more |
| Detached single-family | 79% | 75% | 4 pts higher |
| Median year built | 1977 | 1977 | same as median |
Sorted by largest difference. Each median is the middle value across the covered St. Louis–area suburbs, from the same sources.
| City | People / sq mi | Growth since 2020 | Population |
|---|---|---|---|
| Arnold | 1,827 | 0.5% | 20,994 |
| Kirkwood 11.0 mi | 3,194 | -0.5% | 29,331 |
| Webster Groves 11.1 mi | 3,967 | -2.3% | 23,450 |
| Ballwin 15.2 mi | 3,402 | -2.5% | 30,901 |
| University City 16.7 mi | 5,893 | -1.6% | 34,657 |
| Wildwood 19.2 mi | 521 | -1.3% | 34,955 |
| Measure | Value |
|---|---|
| Housing units | 8,982 |
| Detached single-family | 7,092 (79%) |
| Occupied homes | 8,394 |
| Owner-occupied | 6,699 (80%) |
| Renter-occupied | 1,695 (20%) |
| Median home value | $220,000 |
ACS 2020–2024 estimates.
| Built | Units | Share | Margin of error |
|---|---|---|---|
| 2020 or later | 77 | 0.9% | ±41 |
| 2010 to 2019 | 473 | 5.3% | ±141 |
| 2000 to 2009 | 905 | 10.1% | ±291 |
| 1990 to 1999 | 1,626 | 18.1% | ±285 |
| 1980 to 1989 | 1,024 | 11.4% | ±234 |
| 1970 to 1979 | 1,195 | 13.3% | ±332 |
| 1960 to 1969 | 2,307 | 25.7% | ±335 |
| 1950 to 1959 | 1,077 | 12.0% | ±275 |
| 1940 to 1949 | 136 | 1.5% | ±95 |
| 1939 or earlier | 162 | 1.8% | ±95 |
ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.
| ZIP (ZCTA) | Share of Arnold's land | Share of the ZIP inside the city |
|---|---|---|
| 63010 | 100% | 54% |
pest control questions from Arnold homeowners
My Arnold home is new — do I need termite protection?
Check your closing documents for a builder termite pre-treatment and warranty first. 6% of Arnold homes were built in 2010 or later[1].
I rent in Arnold. Who pays for pest control?
Your lease decides. 20% of Arnold households rent[1].
Which areas does this page cover?
ZIP 63010[4], Jefferson County. Nearest suburbs with their own pages: Kirkwood (11.0 mi), Webster Groves (11.1 mi), and Ballwin (15.2 mi)[3].
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.