St. George, Utah, keeps surfacing whenever readers who are planning to retire in five or ten years ask about fast-growing retirement destinations outside Florida and Arizona. Tucked into the red rock country of the state’s southwest corner, it has mild winters, nearby national parks, and has climbed the fastest-growing metro rankings for years while drawing a large share of retirees. What follows walks through the actual cost picture in current dollars, the portfolio target that budget implies, and the tax mechanic most buyers overlook until they file that first return.
Cost Reality of a St. George Retirement
Growth-metro pricing has definitely taken hold here, driven by steady in-migration and a retiree-heavy buyer pool. Median sale prices in mid-2026 have ranged in the high five figures for entry-level homes, with newer single-family homes in 55-plus communities generally landing in a similar range. That sits well above the paid-off-house assumption most retirement calculators default to, and it also stands above the national trajectory reflected in the Case-Shiller National Home Price Index reading of 335.1 in May 2026.
A realistic annual budget for a couple owning a paid-off $525,000 home in a golf-adjacent active-adult community:
- Property tax at roughly 0.40% of assessed value, about $2,100
- Homeowners insurance in the desert Southwest, about $1,900
- HOA in a 55-plus community, $1,800 to $3,000
- Utilities and water in a hot, dry climate, $3,600
- Food at the USDA moderate-cost plan for two, about $10,500
- Medicare Part B for two at $202.90 monthly, plus Medigap or Advantage and Part D, roughly $9,500 combined
- Vehicles, fuel, and a replacement reserve, $6,500
- Home maintenance sinking fund at 1% of value, $5,250
- Travel, gifts, and discretionary, $9,000
- Federal and Utah income tax on withdrawals, roughly $6,000
That lands near $59,000 before anything goes wrong. Layer in a reserve for medical surprises and one large repair every few years, and the working number is closer to $68,000. For reference, the average U.S. household spent $78,535 in 2024, so this is a lean budget for a growth metro.
Turning That Budget Into a Portfolio Number
Assume a married couple both claim Social Security at full retirement age. The 2027 COLA is tracking at 3.1%, keeping benefits roughly whole in real terms. With a combined benefit near $50,000 a year for two moderate earners, the portfolio must cover the remaining $18,000 of year-one spending plus the tax on the withdrawal itself.
At a 4% withdrawal rate over a traditional 30-year horizon, that gap implies about $450,000 in invested assets on top of the paid-off house. A blended allocation of index funds, dividend ETFs, and a short treasury ladder for near-term spending is the usual container. Retire at 62 instead of 67, and two things change: the Social Security check falls by close to 30% for life, and the safe withdrawal rate should tighten to about 3.3% to survive the longer horizon and the pre-Medicare healthcare bridge (we made the fuller case for an income-first alternative to the 4% rule in a free report).
That version requires closer to $1.1 million in liquid assets, plus an ACA subsidy strategy that keeps modified adjusted gross income low enough for meaningful marketplace credits until 65. Carrying a mortgage into retirement adds roughly $200,000 to the required portfolio for every $1,000 of monthly payment.
Utah Tax Mechanic Most Buyers Miss
On state tax competitiveness, Utah ranks 16th overall and comes in 9th on individual income tax, though it still taxes retirement income, unlike Florida. The state levies a flat rate on all income, which includes Social Security and traditional IRA withdrawals. A Social Security Benefits Credit can reduce or even eliminate state tax on benefits for joint filers below a phase-in income threshold, and there is a separate retirement credit for eligible filers as well. Both of those credits phase out as income goes up.
The phase-out creates the exposure. A couple executing a large Roth conversion, selling appreciated stock, or taking a lump-sum required minimum distribution in a single year can push income past the credit’s floor and expose the entire Social Security benefit to Utah’s flat rate. Combined with federal taxation of benefits and the Part B IRMAA tiers that begin at $218,000 of joint modified adjusted gross income, the effective marginal cost of a concentrated conversion can approach 40 cents on the dollar. Spreading Roth conversions across many small years before benefits begin preserves the credit and the standard Part B premium. St. George looks cheaper than Florida on the housing sticker but slightly more expensive on the tax side once withdrawals start, and the drawdown sequence is what decides which one wins.
What It Takes to Land There
If you are aiming to retire in St. George at 65, the working numbers look like this: a paid-off home near $525,000, roughly $450,000 to $600,000 in invested assets earning a 4% to 5% real return, a 4% withdrawal rate, and both spouses claiming Social Security at full retirement age. Retire at 62 instead, and the portfolio requirement roughly doubles, driven by the pre-Medicare bridge and the tighter safe withdrawal rate. This whole scenario runs on a growth-metro budget rather than a Sun Belt discount, and Utah’s flat tax rewards a slow, disciplined drawdown far more than a lump-sum one.
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