Texas Counties Saw Fast Growth in High-Risk Zones
Three Texas counties ranked in the top 10 for rapid growth and elevated disaster risk levels between 2020 and 2025.
Updated on Oct. 4, 2026 in Residential
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Between 2020 and 2025, Montgomery, Collin, and Fort Bend counties saw significant expansion while maintaining high vulnerability to natural disasters according to RealtyHomes. These findings reflect Census data analyzed alongside FEMA National Risk Index scores.
Why it matters
Rapid expansion in regions with elevated disaster risks can influence long-term insurance costs and housing market stability for new homeowners. This data helps local households evaluate their exposure when considering property investments in high-growth areas.
Montgomery County grew by 24.9 percent, while Collin County added 221,000 residents and reached a 1.3 million population. These figures outpace many U.S. regions, though they carry heightened FEMA disaster risk ratings.
The players
RealtyHomes
A residential real estate analysis firm that tracks population trends and housing market data.
FEMA
The federal agency that provides the National Risk Index used to measure community disaster vulnerability.
The details
RealtyHomes identified these trends by cross-referencing Census population estimates with FEMA National Risk Index scores for counties with at least 100,000 residents. The growth was marked by significant new inventory, such as the 68,800 housing units added in Montgomery County alone. These expansion patterns often place new residential infrastructure directly into areas categorized as having a high or very high natural disaster risk.
Timeline
2020-2025: Period of population and housing growth calculation.
July 1, 2025: Population count threshold assessment date.
Money Landscape
This growth pattern sits at the intersection of surging regional real estate demand and the FEMA National Risk Index, which tracks disaster vulnerability. It highlights a departure from historical development norms where expansion often focused on low-risk areas.
Homeowners in these high-growth regions should periodically review their insurance coverage limits against replacement costs. Consider consulting with a licensed insurance professional to understand how local risk ratings affect your specific policy premiums.
The takeaway
Rapidly growing counties with high disaster risk scores require extra diligence regarding property protection and coverage. Review your current disaster insurance policy to ensure it remains sufficient for your local risk profile.
Further reading
Learn more about local market dynamics by visiting the Residential section.
Source note: This article includes information reported by Chron.
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