Pest control · Hazelwood, Missouri

Pest control in Hazelwood, MO

Termites, ants, roaches, scorpions or rodents? 60% of Hazelwood's homes are detached houses^[1], and 1% were built since 2010. Request a licensed pest-control company that services the area. Hazelwood, in St. Louis County — ZIPs 63042, 63031, 63044, counts 24,849 residents (2025 estimate)^[2].

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The Hazelwood pest control picture in brief

Population (2025 est.): 24,849^[2]-2.4% since 2020
County: St. Louis^[2]
Land area: 16.0 sq mi^[3]
Population density: 1,549 / sq mi^[2]^[3]
Detached single-family homes: 60%^[1]the 3rd-lowest share of the 15 St. Louis–area suburbs we cover
Homes built 2010 or later: 1%^[1]the 2nd-lowest share of the 15 St. Louis–area suburbs we cover
People per square mile of land: 1,549^[2]^[3]the 3rd-least dense of the 15 St. Louis–area suburbs we cover
Households renting: 41%^[1]2020–2024
Population change, 2020–2025: -2.4%^[2]the 4th-slowest-growing of the 15 St. Louis–area suburbs we cover
Land area: 16.0 sq mi^[3]city limits

What the local data means for pest control in Hazelwood

Hazelwood is one of the most established suburbs tracked here — 24,849 people (2025 estimate), down just 2.4% since 2020^[2]. The city spans 16.0 square miles at 1,549 residents per square mile (the 13th densest) and sits entirely in St. Louis County, served by ZIP codes 63042, 63031, 63044^[3].

Building amid 2.4% decline 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.

3 ZIP codes cover Hazelwood — 63042 (63% of the city's land), 63031 (20% of the city's land), 63044 (15% of the city's land)^[4].

Nearest of the other suburbs we track: Florissant (3.7 mi E), St. Charles (6.4 mi W) and Maryland Heights (6.8 mi SW)^[3].

60% of Hazelwood's 12,379 housing units are detached houses^[1] — the 3rd-lowest share of the 15 St. Louis–area suburbs we cover; nearby, Florissant (79%), St. Charles (59%), and Maryland Heights (50%). With more attached housing, pests move between units — whole-building treatment matters more.

1% of homes were built in 2010 or later^[1] (the 2nd-lowest share of the 15 St. Louis–area suburbs we cover; Florissant (1%), St. Charles (15%), and Maryland Heights (6%) nearby), and population changed -2.4% from 2020 to 2025^[2]. Most houses here are past any builder termite warranty.

About 1,549 people live per square mile of land across 16.0 square miles^[2]^[3] — the 3rd-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.

41% of households rent and 59% own^[1]. Renters: check the lease for who handles pest control.

Among the 15 suburbs tracked here, Hazelwood stands out for the 3rd-lowest share of detached houses (60%)^[1], the 3rd-most spread-out settlement (1,549)^[2]^[3], and the 3rd-highest renter share (41%)^[1].

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Requests go to Pest control contractors serving the Hazelwood area — ZIP codes 63042, 63031, 63044.

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Before you call: choosing a pest-control plan

Hazelwood by the numbers

Hazelwood next to the typical covered suburb (median of 15)^[1]^[2]^[3]^[5]
Measure	Hazelwood	Median of 15	Difference
Renter-occupied	41%	23%	18 pts higher
Growth since 2020	-2.4%	-1.3%	1 pts slower
Residents per sq mi	1,549	2,728	43% less dense
Detached single-family	60%	75%	15 pts lower
Flood reports (10 mi)	13	14	1 fewer
Median year built	1970	1977	7 years older

Largest differences first. Medians are the middle value across the covered St. Louis–area suburbs, from the same sources.

Hazelwood beside its nearest neighbours^[2]^[3]^[3]
City	People / sq mi	Growth since 2020	Population
Hazelwood	1,549	-2.4%	24,849
Florissant 3.7 mi	4,073	-2.7%	51,124
St. Charles 6.4 mi	2,875	2.7%	72,561
Maryland Heights 6.8 mi	1,259	-2.6%	27,559
University City 9.6 mi	5,893	-1.6%	34,657
St. Peters 11.2 mi	2,728	6.5%	61,479

Hazelwood housing and households^[1]
Measure	Value
Housing units	12,379
Detached single-family	7,427 (60%)
Occupied homes	11,344
Owner-occupied	6,706 (59%)
Renter-occupied	4,638 (41%)
Median home value	$167,400

ACS 2020–2024 estimates.

When Hazelwood's 12,379 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	0	0.0%	±23
2010 to 2019	177	1.4%	±160
2000 to 2009	904	7.3%	±312
1990 to 1999	1,113	9.0%	±381
1980 to 1989	2,067	16.7%	±360
1970 to 1979	1,901	15.4%	±458
1960 to 1969	3,840	31.0%	±493
1950 to 1959	1,590	12.8%	±318
1940 to 1949	668	5.4%	±432
1939 or earlier	119	1.0%	±98

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

ZIP code areas covering Hazelwood^[4]
ZIP (ZCTA)	Share of Hazelwood's land	Share of the ZIP inside the city
63042	63%	98%
63031	20%	22%
63044	15%	14%

Common Hazelwood pest control questions

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

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

I rent in Hazelwood. Who pays for pest control?

Your lease decides. 41% of Hazelwood households rent^[1].

Which areas does this page cover?

ZIP 63042, 63031, and 63044^[4], St. Louis County. Nearest suburbs with their own pages: Florissant (3.7 mi), St. Charles (6.4 mi), and Maryland Heights (6.8 mi)^[3].

A lot of Hazelwood homes predate 1980 — what does that mean for termite pre-treatment work?

66% of Hazelwood's housing units were built before 1980, 19.2% before 1960^[1] — the 5th-highest share of the 15 St. Louis–area suburbs we cover. Older houses tend to have more gaps at the foundation, eaves and utility penetrations — ask the inspector to show you the entry points, not just treat.

I rent in Hazelwood. Who arranges the repair?

41% of occupied Hazelwood homes are rented^[1], the 3rd-highest share of the 15 St. Louis–area suburbs we cover. Tell your landlord or property manager in writing first; your lease says who arranges repairs.

Sources

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