Cost of Living in Katy

Katy's overall cost of living reads as modestly below the national average by one detailed source and modestly above it by another -- a real disagreement worth disclosing rather than picking a side. What's more consistent across sources is that Katy runs cheaper than the Texas state average and meaningfully cheaper than pricier Houston satellites like The Woodlands or Sugar Land.

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Two sources, two different headline reads

Salary.com's 2026 cost-of-living data puts Katy at 6% below the U.S. national average and 12% below the Texas state average, with typical monthly costs around $2,322 for a single person and $5,114 for a family of four. A separate index cited elsewhere puts Katy's overall score at 105 -- 5% above the national average. These two readings disagree on direction, not just magnitude; treat any single cost-of-living index for Katy as directional rather than a precise, agreed-upon number.

Housing: a genuinely mixed picture depending on the metric

One 2026 source cites a Katy median home value of $359,800 and median rent of $1,444/month -- both close to, but not identical to, the housing-market and renting topics' own sourced figures (a $351,109 median sale price per Redfin, and rent estimates ranging $1,603-$2,000/month depending on tracker). The gap likely reflects different snapshot dates and measurement methods (home value estimate vs. sale price; average vs. median rent) rather than a genuine factual conflict -- see those topic pages for the fuller breakdown.

No Texas state income tax is a real, structural offset

Texas levies no state personal income tax, a meaningful cost-of-living offset for salaried workers and retirees relocating from a state with one -- see the taxes topic for the fuller picture, including the tri-county property tax variation that is a bigger factor for Katy specifically than income tax ever would be.

Cheaper than the area's higher-end Houston satellites

Within the broader set of Houston-area suburbs, Katy consistently prices as one of the more affordable options -- its $351,109 median sale price runs well below The Woodlands ($649,646) and Sugar Land ($491,233), per the base record's cross-suburb comparison. That relative affordability, not a single cost-of-living index score, is Katy's clearest and most consistently sourced cost advantage.

Key takeaways

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Last reviewed: 2026-08-22. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.