Local directory · O'Fallon, MO

General Contractors in O'Fallon, MO

Written & reviewed by Founder, SEO Local · 22 years in SEO · Updated October 2026 · LinkedIn

There's a total of 190 general contractors in St. Charles County, MO according to US Census (County Business Patterns). Here are some that were found using OpenStreetMap - 1 listed by name, 1 with a phone number and 1 linking to its website. Each entry is free, and any owner can claim their page on the hashtag.org network.

General Contractors directory · O'Fallon

Data: © OpenStreetMap contributors

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Local news · General Contractors · O'Fallon

General Contractors in O'Fallon — FAQ

How many general contractors are in O'Fallon, MO?
There's a total of 190 general contractor business locations found in St. Charles County, Missouri as per the U.S. Census data (County Business Patterns). Currently there is only one business listed and named on our directory.
How many of these general contractors list contact details?
Of the 1 general contractors mapped here, 1 list a phone number and 1 link a website.
Is this O'Fallon general contractors directory free?
Yes. Every listing is built from authoritative data — US Census County Business Patterns and OpenStreetMap — and any business can claim its page on the hashtag.org network at no cost.

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