St. Louis County, MO vs San Francisco County, CA: Cost of Living Difference

St. Louis County, MO is cheaper than San Francisco County, CA for modeled annual cost of living. This comparison shows the yearly cost gap, salary needed to keep similar purchasing power, and the categories driving the difference.

Is it cheaper?

St. Louis County, MO is cheaper than San Francisco County, CA.

Cheaper cost of living

Cheaper place

St. Louis County, MOSpend $25,957 more per year.

Cost gap

Moving to San Francisco County, CA is estimated to cost $25,957 more per year.

AnnualSpend $25,957 more per year.

MonthlySpend $2,163 more per month.

Salary needed

$50,000 in St. Louis County, MO is about $76,885 in San Francisco County, CA.

Biggest drivers

Housing increases by $13,075 per year. Transport saves $3,015 per year.

St. Louis County, MOSan Francisco County, CA
Equivalent salary in San Francisco County, CA
$76,885
+53.77% higher
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in St. Louis County, MO: $108,392
Median Income in San Francisco County, CA: $165,603
annual living index in St. Louis County, MO 44.53%
annual living index in San Francisco County, CA 44.82%

This estimate matches your purchasing power (equivalent salary) when moving from St. Louis County, MO to San Francisco County, CA.

* Living index is estimated as (estimated annual total cost / area median annual income) * 100. A living index above 100% means modeled costs exceed median income.

Cost of Living Breakdown by Category

Category-by-category comparison

Annual costs are shown for the selected household. The difference column shows how much more or less the category costs in San Francisco County, CA compared with St. Louis County, MO.

CategorySt. Louis County, MOSan Francisco County, CAAnnual differenceMonthly impactDirection
Housing$12,328$25,403+$13,075(106.06%)+$1,090Higher in San Francisco County, CA
Taxes$9,210$17,491+$8,281(89.91%)+$690Higher in San Francisco County, CA
Other Costs$5,296$9,667+$4,371(82.53%)+$364Higher in San Francisco County, CA
Transport$11,710$8,695-$3,015(-25.75%)-$251Lower in San Francisco County, CA
Healthcare$4,996$7,238+$2,242(44.88%)+$187Higher in San Francisco County, CA
Food$4,731$5,735+$1,004(21.22%)+$84Higher in San Francisco County, CA
Childcare$0$0$0(0%)$0About even

Why this comparison matters

These notes use the actual annual cost differences between St. Louis County, MO and San Francisco County, CA, so the page highlights the budget tradeoffs behind the total.

Affordability vs median income

Modeled annual costs equal about 44.5% of median family income in St. Louis County, MO and 44.8% in San Francisco County, CA. This matters because a cheaper county can still feel tight if typical local incomes are also lower.

Housing

Housing is $13,075 per year higher in San Francisco County, CA than in St. Louis County, MO. Housing usually behaves like a fixed monthly commitment, so this matters most for renters or buyers checking whether San Francisco County, CA changes their baseline budget.

Food

Food is $1,004 per year higher in San Francisco County, CA than in St. Louis County, MO. Food costs affect weekly cash flow, so even a smaller modeled gap in San Francisco County, CA can show up quickly for households that cook most meals at home.

Transportation

Transportation is $3,015 per year lower in San Francisco County, CA than in St. Louis County, MO. Transportation matters for commuters because driving distance, vehicle costs, and transit access can change how much of a salary is left after getting around San Francisco County, CA.

Healthcare

Healthcare is $2,242 per year higher in San Francisco County, CA than in St. Louis County, MO. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if San Francisco County, CA changes provider networks or plan options.

Other necessities

Other necessities is $4,371 per year higher in San Francisco County, CA than in St. Louis County, MO. Other necessities cover everyday basics, so changes in San Francisco County, CA help explain the non-housing costs that can quietly add up month after month.

Childcare

Childcare is about the same in St. Louis County, MO and San Francisco County, CA, so this category is not a major driver of the modeled gap. Childcare is most important for households with children; in San Francisco County, CA, this line can swing the result even when housing or taxes look manageable.

Taxes

Taxes is $8,281 per year higher in San Francisco County, CA than in St. Louis County, MO. Taxes affect take-home pay, so the gap in San Francisco County, CA matters even if the headline salary looks similar before deductions.

Methodology and data vintage

WatchPennies uses county-level 2026 cost estimates from a 2025-2026 cost-data snapshot. The comparison includes housing, food, transportation, healthcare, childcare, other necessities, taxes, total cost, and median family income context when available.

Read the full methodology

Frequently asked questions

Which is cheaper, St. Louis County, MO or San Francisco County, CA?

St. Louis County, MO is cheaper than San Francisco County, CA by about $25,957 per year.

How much salary is needed in San Francisco County, CA?

A $50,000 salary in St. Louis County, MO is modeled as roughly equivalent to $76,885 in San Francisco County, CA for the selected household profile.

What costs are included in this St. Louis County, MO vs San Francisco County, CA comparison?

The comparison includes housing, food, transportation, healthcare, childcare, other necessities, taxes, total cost, and median family income context when available.

Is this comparison personalized financial advice?

No. WatchPennies comparisons are directional planning estimates based on county-level public datasets, not personalized financial, tax, housing, or relocation advice.

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