Pest control · Wentzville, Missouri

Pest control in Wentzville, MO

Termites, ants, roaches, scorpions or rodents? 82% of Wentzville's homes are detached houses^[1], and 40% were built since 2010. Request a licensed pest-control company that services the area. Wentzville, in St. Charles County — ZIP 63385, counts 49,495 residents (2025 estimate)^[2].

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Wentzville pest control snapshot: the key figures

Population (2025 est.): 49,495^[2]+10.1% since 2020
County: St. Charles^[2]
Land area: 22.0 sq mi^[3]
Population density: 2,248 / sq mi^[2]^[3]
Detached single-family homes: 82%^[1]the 2nd-highest share of the 15 St. Louis–area suburbs we cover
Homes built 2010 or later: 40%^[1]the highest share of the 15 St. Louis–area suburbs we cover
People per square mile of land: 2,248^[2]^[3]the 7th-least dense of the 15 St. Louis–area suburbs we cover
Households renting: 18%^[1]2020–2024
Population change, 2020–2025: +10.1%^[2]the 2nd-fastest-growing of the 15 St. Louis–area suburbs we cover
Land area: 22.0 sq mi^[3]city limits

Reading the Wentzville data for pest control

Wentzville is one of the fastest-growing St. Louis–metro suburbs tracked here: 49,495 people (2025 estimate), up 10.1% since 2020^[2]. It covers 22.0 square miles (2,248 residents per square mile, the 9th densest), sits entirely in St. Charles County, in ZIP code 63385^[3].

Building amid 10.1% 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.

The entire city sits in ZIP code 63385^[4].

Nearest of the other suburbs we track: Lake St. Louis (5.2 mi SE), O'Fallon (8.4 mi E) and St. Peters (14.6 mi E)^[3].

82% of Wentzville's 16,601 housing units are detached houses^[1] — the 2nd-highest share of the 15 St. Louis–area suburbs we cover; nearby, Lake St. Louis (67%), O'Fallon (75%), and St. Peters (68%). Perimeter, slab-edge and termite plans are mostly individual homeowner decisions here.

40% of homes were built in 2010 or later^[1] (the highest share of the 15 St. Louis–area suburbs we cover; Lake St. Louis (25%), O'Fallon (20%), and St. Peters (12%) nearby), and population changed +10.1% from 2020 to 2025^[2]. Many owners here can still check for a builder termite pre-treatment and warranty.

About 2,248 people live per square mile of land across 22.0 square miles^[2]^[3] — the 7th-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.

18% of households rent and 82% own^[1].

Among the 15 suburbs tracked here, Wentzville stands out for the newest housing (by median year built) (2008)^[1], the fewest flood reports nearby (5, tied with Lake St. Louis)^[5], the 2nd-highest share of detached houses (82%)^[1], and the 2nd-fastest growth since 2020 (10.1%)^[2].

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Requests go to Pest control contractors serving the Wentzville area — ZIP code 63385.

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The Wentzville numbers behind this page

Wentzville next to the typical covered suburb (median of 15)^[2]^[5]^[1]^[3]
Measure	Wentzville	Median of 15	Difference
Growth since 2020	10.1%	-1.3%	11 pts faster
Flood reports (10 mi)	5	14	9 fewer
Renter-occupied	18%	23%	5 pts lower
Residents per sq mi	2,248	2,728	18% less dense
Detached single-family	82%	75%	8 pts higher
Median year built	2008	1977	31 years newer

Biggest gaps first. Medians are middle values across the St. Louis–area suburbs we cover, drawn from the same sources.

Wentzville beside its nearest neighbours^[2]^[3]^[3]
City	People / sq mi	Growth since 2020	Population
Wentzville	2,248	10.1%	49,495
Lake St. Louis 5.2 mi	2,233	14.4%	19,129
O'Fallon 8.4 mi	3,101	5.2%	96,101
St. Peters 14.6 mi	2,728	6.5%	61,479
St. Charles 19.2 mi	2,875	2.7%	72,561
Chesterfield 19.3 mi	1,550	-1.4%	49,309

Wentzville housing and households^[1]
Measure	Value
Housing units	16,601
Detached single-family	13,664 (82%)
Occupied homes	16,294
Owner-occupied	13,442 (82%)
Renter-occupied	2,852 (18%)
Median home value	$331,300

ACS 2020–2024 estimates.

When Wentzville's 16,601 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	608	3.7%	±180
2010 to 2019	6,023	36.3%	±545
2000 to 2009	6,855	41.3%	±634
1990 to 1999	1,062	6.4%	±211
1980 to 1989	417	2.5%	±135
1970 to 1979	350	2.1%	±131
1960 to 1969	341	2.1%	±163
1950 to 1959	734	4.4%	±351
1940 to 1949	107	0.6%	±70
1939 or earlier	104	0.6%	±67

ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.

ZIP code areas covering Wentzville^[4]
ZIP (ZCTA)	Share of Wentzville's land	Share of the ZIP inside the city
63385	87%	26%

Common Wentzville pest control questions

My Wentzville home is new — do I need termite protection?

Check your closing documents for a builder termite pre-treatment and warranty first. 40% of Wentzville homes were built in 2010 or later^[1].

I rent in Wentzville. Who pays for pest control?

Your lease decides. 18% of Wentzville households rent^[1].

Which areas does this page cover?

ZIP 63385^[4], St. Charles County. Nearest suburbs with their own pages: Lake St. Louis (5.2 mi), O'Fallon (8.4 mi), and St. Peters (14.6 mi)^[3].

My Wentzville home is fairly new — could the termite pre-treatment still be under warranty?

Possibly: 40% of Wentzville's housing units were built in 2010 or later^[1], the highest share of the 15 St. Louis–area suburbs we cover. Check your closing paperwork for warranties before paying for a repair.

Sources

Data pulled Sep 28, 2026. Full citations and method.