Moving to Collinsville: Pros, Cons & What to Know

Moving to Collinsville means moving to a real, distinctive Metro East town famous for the World's Largest Catsup Bottle and its proximity to a genuine UNESCO World Heritage Site, with honest, disclosed tradeoffs around county-line property taxes and a modestly declining population.

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A wholly distinctive roadside-Americana landmark

The World's Largest Catsup Bottle -- a 170-foot water tower built in 1949 for the former Brooks Old Original Catsup bottling plant -- is a real, listed National Register of Historic Places landmark, celebrated each July with an annual Catsup Bottle Festival (base record).

The nearest city to a genuine UNESCO World Heritage Site

Collinsville is the nearest city to Cahokia Mounds State Historic Site -- the largest pre-Columbian settlement north of Mexico, occupied roughly 800-1400 AD, and a genuine UNESCO World Heritage Site designated in 1982 (base record).

Real, close proximity to the St. Louis, Missouri job market

Collinsville sits roughly 14 miles east of downtown St. Louis, with a job market genuinely oriented toward St. Louis rather than Chicago -- consistent with this project's broader Metro East regional framing (base record).

A real, disclosed cross-county property-tax wrinkle and modest population decline

Because Collinsville straddles Madison and St. Clair counties, a specific property's effective tax rate genuinely depends on which side of the boundary it sits on. Collinsville's population is also projected to decline modestly, from 24,368 (2020 Census) toward roughly 23,500-23,800 by 2026 (base record).

Key takeaways

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Last reviewed: 2026-08-25. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.