How to Compare Cost of Living Between Two Cities

A job offer in a new city looks great on paper until you run the numbers. A $95,000 salary in Austin sounds like a raise from $80,000 in Cleveland — until you factor in Texas housing costs, the absence of state income tax on both sides, and what groceries and utilities actually cost in each place. Sometimes the raise is real. Sometimes it evaporates entirely. Occasionally the lower-paying offer in the cheaper city leaves you with more money at the end of every month.

The same math applies to any relocation decision, not just job changes. Remote workers choosing between cities, families weighing a move for lower housing costs, and first-time buyers comparing metros all face the same core question: what does my dollar actually buy in each place?

This article walks through a complete, step-by-step framework for answering that question accurately. It covers the data sources, the salary equivalency formula professionals use, the taxes most calculators miss, and how to use the ZIP-level data at ZipCodePlus.com to sharpen comparisons down to the neighborhood level.

Why Simple Comparisons Miss the Point

Most people compare cities by looking at one or two numbers — usually housing costs, sometimes average salary. That approach produces a directionally useful answer but often misses the real picture by a wide margin.

Consider three things a basic comparison typically ignores:

State and local income taxes. The Council for Community and Economic Research (C2ER), the gold standard for city-to-city cost comparisons, publishes a Cost of Living Index that covers housing, groceries, utilities, transportation, healthcare, and miscellaneous goods. What it does not include is state and local income taxes.¹ For someone earning $100,000, the difference between California’s top marginal rate and Texas’s 0% rate can amount to $8,000 to $12,000 per year in take-home pay — a gap that swamps most housing cost differences between mid-tier cities.¹

Sales tax on everyday spending. A household spending $50,000 per year on taxable goods and services pays nothing in sales tax in New Hampshire or Oregon and over $5,000 per year in high-rate cities in Tennessee, Louisiana, or Arkansas. That number shows up on every shopping trip, every year.

Stale data. Cost of living indices shift dramatically in two to three years. Miami’s rent surged over 50% between 2020 and 2023 before cooling.¹ A city labeled affordable based on 2021 data may have repriced entirely. Always verify current numbers before making a decision.

The framework below addresses all three gaps.

Step 1: Establish Your Baseline Numbers

Before comparing anything, document your current situation accurately. You need four numbers:

Current gross annual income (total before taxes)
Current monthly housing cost (rent or mortgage payment)
Current monthly take-home pay (after all taxes and deductions)
Current monthly spending on everything else (utilities, groceries, transportation, healthcare, entertainment)

Most people underestimate that last number. Pull three months of bank and credit card statements and calculate the real average. This is your baseline — the actual cost of your current life, not an estimate.

Step 2: Use the C2ER Salary Equivalency Formula

The C2ER Cost of Living Index uses 100 to represent the national average. A city with an index of 85 costs 15% less than the national average. A city with an index of 145 costs 45% more.

The salary equivalency formula converts your current income into what you would need in a new city to maintain the same purchasing power:

Equivalent Salary = Current Salary x (New City Index / Current City Index)

A few real examples using 2025-2026 C2ER data:¹

Move	Calculation	Equivalent Needed
$80,000 in Dallas (index 95) to Seattle (index 145)	$80,000 x (145/95)	~$122,100
$90,000 in San Francisco (index 160) to Indianapolis (index 89)	$90,000 x (89/160)	~$50,100
$75,000 in Columbus (index 91) to Manhattan (index 187)	$75,000 x (187/91)	~$154,400

That third example is striking. Maintaining a $75,000 Columbus lifestyle in Manhattan requires over $154,000 in gross income — before accounting for New York City and state income taxes, which would push the real equivalent closer to $165,000.¹

The formula works in both directions. Moving to a cheaper city means you may be able to accept a lower nominal salary without cutting your standard of living — which matters enormously when evaluating remote-work salary adjustments or job offers in lower-cost markets.

Where to find C2ER index values: The C2ER publishes quarterly data at coli.org. Third-party summaries are available at salary.com, rentcafe.com, and smartasset.com’s cost of living calculator. For a general reference, index scores for major cities as of 2025-2026 data:

City	Approx. C2ER Index
Manhattan, NY	187+
San Francisco, CA	160
San Jose, CA	181
Honolulu, HI	180+
Boston, MA	158
Seattle, WA	145
Denver, CO	110
Austin, TX	105
National Average	100
Raleigh, NC	97
Columbus, OH	91
Dallas, TX	95
Indianapolis, IN	89
Oklahoma City, OK	84
Memphis, TN	86

Source: C2ER Cost of Living Index 2025-2026 annual data.¹

Step 3: Add the Tax Layer

The C2ER formula gets you to purchasing power parity on goods and services. Taxes require a separate calculation.

State Income Tax

Nine states currently have no broad-based state income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming.² Moving from a high-tax state to a no-tax state at the same salary produces a meaningful real raise with no change in gross income. Moving the other direction is effectively a pay cut.

California’s top marginal rate reaches 13.3%. New York adds state and city income taxes that can combine to over 12% for city residents. Oregon’s top rate reaches 9.9%. At a $150,000 salary, the difference between California and Texas in state income tax alone can approach $15,000 per year — money that would need to be reflected in any honest city-to-city salary comparison.

Sales Tax

The combined sales tax rate — state plus local — appears on every ZipCodePlus page in the taxes card. This is the number that applies at the register on every taxable purchase. The spread across American cities is substantial:

Portland, Oregon: 0% combined
Nashville, Tennessee: ~9.25% combined
Chicago, Illinois (city): up to 10.25% combined in some ZIP codes
Houston, Texas: 8.25% combined

On a $40,000 annual spending budget after housing, the difference between 0% and 10% sales tax is $4,000 per year. That is not a rounding error — it is a car payment.

Look up the combined sales tax rate for any ZIP code you are comparing at ZipCodePlus.com before finalizing your analysis. Two cities with similar C2ER indices but very different sales tax structures can produce meaningfully different real purchasing power. For a full breakdown, see Sales Tax Rates by State 2026 and How Sales Tax Affects Your Cost of Living.

Step 4: Break Down Housing Specifically

Housing typically drives 60 to 70 percent of the cost difference between cities.¹ It deserves its own analysis separate from the overall index.

The 30% Rule

The standard affordability benchmark is to spend no more than 30% of gross monthly income on housing. Run this calculation for both cities:

Monthly gross income x 0.30 = maximum affordable housing payment
Compare that number to the median rent or estimated mortgage payment in your target ZIP code

A household earning $85,000 per year ($7,083/month gross) should target housing costs under $2,125/month by this standard. In ZIP code 43215 in Columbus, Ohio, the median rent is well within that range. In ZIP code 10001 in Manhattan, it is not close.

Rent vs. Buy in Each City

The ratio of home prices to annual rents varies enormously by city. In expensive coastal markets, buying is dramatically more expensive than renting on a monthly cash-flow basis. In Midwest and Southern markets, buying can actually be cheaper per month than renting comparable space. This comparison needs to be run separately for each city using current data.

For a detailed framework on this decision, see Rent vs. Buy in 2026.

ZIP Code vs. City Averages

City-level housing averages mask enormous neighborhood variation. The median home value in a high-cost city tells you very little about specific ZIP codes within that city. Always look up the actual ZIP codes you are considering.

Browse ZIP codes in Texas -> and you will find ZIP codes in the Dallas-Fort Worth metro ranging from under $200,000 to well over $700,000 in median home value — within the same metro area. The same variation exists in every major city. ZipCodePlus.com’s housing card shows median home value and median rent for every ZIP code in the country, which lets you compare specific neighborhoods rather than city averages.

Step 5: Account for the Hidden Costs

A complete cost of living comparison includes several expense categories that city-level indices capture imperfectly.

Transportation. Cities with strong public transit systems allow residents to eliminate or significantly reduce car costs. The average American household spends over $10,000 per year on vehicle ownership and operation. A household that can go car-free in a transit-rich city like New York, Chicago, or Boston recaptures a substantial part of the housing premium those cities charge. Conversely, many Sun Belt and Midwest cities are effectively car-dependent, meaning a car budget is non-negotiable.

Healthcare. Out-of-pocket healthcare costs vary by state insurance markets and employer coverage quality. A city with better employer-sponsored health plans or lower provider costs can produce hundreds of dollars per month in real savings.

Childcare. For families with young children, childcare costs can swing budgets by $1,000 or more per month depending on location. Two cities with similar housing and tax profiles can look completely different once childcare is factored in. Urban markets and high-demand suburban school districts tend to have the highest childcare costs.

Utilities. Climate zone matters here. A ZIP code in Minneapolis (USDA Zone 4b) with brutal winters will carry substantially higher heating costs than a ZIP code in Phoenix or Tampa. The climate card on each ZipCodePlus page tells you the Koppen climate zone and USDA hardiness zone — both of which signal the seasonal utility cost profile of a location. For more on this, see How to Use Climate Data When Choosing Where to Live.

Step 6: Build a Side-by-Side Monthly Budget

Once you have gathered the data, the most useful tool is a simple side-by-side monthly budget. Use this structure:

Expense Category	City A	City B
Gross monthly income
State income tax
Federal income tax (same both)
Net take-home pay
Housing (rent or mortgage)
Sales tax on spending (~$3K/mo)
Transportation
Groceries
Utilities
Healthcare out-of-pocket
Childcare (if applicable)
Total monthly expenses
Monthly surplus/deficit

The bottom line — monthly surplus or deficit — is the real comparison. A city that produces a $1,200/month surplus is meaningfully better than one that produces $400/month, regardless of which gross salary looks larger on a job offer letter.

Step 7: Use ZIP Code Data to Sharpen the Comparison

City-level analysis tells you the general direction. ZIP-level data tells you whether a specific neighborhood actually works for your budget.

For every ZIP code you are seriously considering, look up these five data points at ZipCodePlus.com:

Median household income (demographics card) — how does local income compare to what you will earn?
Median home value (housing card) — is this neighborhood within your buying range?
Median rent (housing card) — what is the realistic rental floor here?
Combined sales tax rate (taxes card) — what is the actual tax bite at checkout?
Climate zone (climate card) — what are the seasonal utility cost implications?

Together these five data points give you a ZIP-level reality check that city-level comparisons cannot provide. A neighborhood with a median household income of $110,000 and a median home value of $340,000 is a different market than one with $52,000 income and $260,000 home values, even if they sit in the same city and carry similar gross index scores.

For more on how to use these data points together, see How to Research a Neighborhood Before You Move and Median Household Income by ZIP Code 2026.

A Worked Example: Austin vs. Raleigh

Two cities that frequently appear on the same shortlists for remote workers and young professionals. Here is how the comparison actually looks.

Both carry C2ER indices close to the national average (Austin around 105, Raleigh around 97). Both have no state income tax — Texas and North Carolina are often lumped together on this point, but North Carolina does have a flat state income tax of 4.5%, while Texas has none. That difference on a $90,000 salary amounts to roughly $4,050 per year before deductions.

Austin’s housing market has repriced significantly since 2021, with median home values in many desirable ZIP codes now above $500,000. Raleigh’s market has also risen, but median values in comparable neighborhoods often run $75,000 to $150,000 lower.

Browse ZIP codes in Texas -> and browse ZIP codes in North Carolina -> and look at the specific neighborhoods each city’s job market puts within commuting range. The ZIP-level housing and income data will tell you more than any headline comparison.

Neither city is universally the better choice. The right answer depends on your income, your family situation, your employer’s location-based pay policy, and which specific neighborhoods you can realistically afford in each place.

Sources

Page last updated: April 2026. C2ER Cost of Living Index values reflect 2025 annual averages published August 2025. Tax rates reflect 2026 state schedules. Always verify current figures before making a relocation or employment decision.

FinanceWonk / C2ER — ‘Cost of Living Index by City 2026: C2ER Data, Salary Comparison and Most Affordable Cities.’ Data from C2ER Cost of Living Index 2025 Annual Average. https://www.financewonk.com/references/cost-of-living ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷
ZipCodePlus.com — ‘States With No Income Tax in 2026.’ https://zipcodeplus.com/blog/states-with-no-income-tax-2026 ↩