Who lives in O'Fallon, Missouri?

O'Fallon is the most populous city in St. Charles County and the largest suburb of St. Louis, about 91,825 people spread across master-planned communities like WingHaven and the new-build subdivisions filling the county's western growth corridor. It grew from a railroad town of a few hundred into a boomtown of nearly six figures, and it keeps landing near the top of best-places-to-live lists for Missouri. The age curve skews toward working families, with the 35 to 54 bands running several points above the country and the 65-and-over share thinner than national.

The loudest thing about these households is financial. Only about a fifth are non-investors, roughly half the national rate, and barely one in ten saves nothing at all. This is an affluent, planning-minded population anchored by stable employers like Mastercard's data-center operation, the kind of place where putting money to work is simply what people do.

Personality here sits close to the national center across the board, with only faint leans: a little more planning discipline, a little more warmth, a little more calm. The real distance is not in temperament but in posture toward money and the future, where this audience pulls well ahead of the country.

Decision speed and risk appetite both track national closely, with risk nudging slightly toward the bolder end. These are secure households comfortable making a confident call, though they want the reasoning to hold up before they commit.

Environmental concern here leans toward awareness rather than activism, with the share of dedicated activists running below national and the merely aware running above. Local-business preference and ethical-consumption habits sit near the middle, so neither carries a household's purchase on its own.

Corporate trust is one quiet bright spot. Outright cynicism toward big companies runs lower than national and the trusting share runs higher, which fits a community whose economy leans on respected corporate employers. A credible brand gets a fairer hearing here than in most places.

Platform habits track national closely, with Facebook the single most-used channel, a slight edge well-suited to neighborhood groups, school communities, and local event chatter. Instagram, YouTube, and TikTok fill in behind it at roughly typical levels.

Format preference is balanced across short video, long video, and mixed media, with no strong skew, so the channel matters less than the message. Reach them where the subdivision and school conversations already happen, and lead with substance over spectacle.

Saving is the defining money habit. Aggressive savers make up the largest group and regular savers run well above national, while the non-saver share is roughly a third of the country's. Comprehensive insurance coverage is far more common than the bare-minimum approach, and excellent credit is markedly more prevalent, so financial stress runs low for a large share of these households.

They buy a little more often than the typical American, with monthly and weekly purchasing both running above national, and price-versus-quality motivation sits near the middle. Lead with durability and long-term value, since these are households that think in terms of what holds up rather than what is cheapest today.

Health is managed the way the money is. Proactive health-seekers outnumber the national share by a wide margin, the indifferent are about half as common, and only a small slice waits until something breaks to see a doctor. This is preventive, get-ahead-of-it behavior.

Openness about mental wellness runs ahead of national too, with more residents willing to talk about it and fewer keeping it strictly private. Messaging around routine checkups, screenings, and wellness as upkeep fits how these households already operate.