Looking for a pool builder in Ballwin, MO? Describe your project once and up to five licensed pool builders who work in Ballwin and St. Louis County get back to you with a quote. It's free and there is no obligation.
Ballwin is home to about 31,036 people (2024 Census Bureau estimate), a shrinking community (−2.1% since 2020). With 3,416 people per sq mi, it is a suburban area. Long summers and backyard living make pools a frequent project here.
Ballwin at a glance
- Population (Census Bureau estimate, 2024)
- 31,036 (−2.1% since 2020)
- Rank in Missouri
- 21st of 938 cities and towns
- Land area
- 9.1 sq mi
- Population density
- 3,416 people per sq mi (suburban)
- Type
- City (Ballwin city)
- Main county
- St. Louis County
What to check before hiring in Ballwin
- License and permit: in Missouri, check the builder's license and the pool permit.
- Barrier: plan the fence and gates required by code.
- HOA: check HOA rules before signing.
- Price drivers: size, type, finish, equipment, deck and access.
Useful official resources
-
Pool Safely (CPSC)
Official information and guidance.
-
ICC: International Code Council
Official information and guidance.
Services available in Ballwin
-
In-ground pool construction
Design and construction of an in-ground pool with equipment, permit and barrier.
-
Pool renovation
Resurfacing, tile, equipment and deck renovation of an existing pool.
Frequently asked questions in Ballwin
How much does a pool cost in Ballwin, MO?
It depends on type, size, finishes and access. Describe your project: builders who serve Ballwin reply with a quote.
When should I start?
Off-season planning often gets earlier construction dates.
Does a pool add value?
It depends on the market; in warm areas buyers often expect one.
Which licensed pool builders will contact me?
Up to five independent licensed pool builders who serve Ballwin and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.