In the fantastic area of Geismar you’ll be in good company with around 10,090 residents with around 83% of those homeowners. With an average age of 32, Geismar has a fairly young population filled with young professionals, new parents, and new homeowners. Over the past 30 days roughly 2 homes have been sold with an average sold price of 340,000. That is a decrease of $65,247 from the previous period.