What Is Cost of Living? Complete Definition and Guide (Updated for 2026)

The cost of living is the average amount you pay for everyday necessities in a specific place, such as housing, food, transportation, health care and taxes. Prices still move even when your routine stays the same. The consumer price index shows the all-items index rose 2.4% over the last 12 months as of January 2026.

This guide will cover what the cost of living includes, how indexes work, and how to compare places before you move or buy a home. Understanding cost of living is important because it determines how far your income will actually stretch, directly impacting your budget and financial future.

What Is the Definition of Cost of Living?

The cost of living determines how much money you need to live comfortably in a specific country, state, city or town. Understanding the cost of living and how it is calculated helps people compare the cost of living across locations.

Economists determine the hidden costs of living expenses by researching the prices of goods that people need to survive in various locations. Many people rely on the cost-of-living measure provided by the consumer price index, published by the Bureau of Labor Statistics. However, there are many other cost-of-living estimates and calculators available online.

Cost of living is a place-based measure based on a snapshot of what you are likely to spend to live your normal life. It is not a personal budget, but rather a baseline that helps you compare one city or state to another. 

You might see the cost of living mixed up with inflation. Inflation is about prices changing over time, while cost of living is about prices being different from place to place. The consumer price index tracks price change over time for a market basket of goods and services. 

If rent is higher in the place you want to move to, the same salary can feel smaller fast. You might still live well, but you’ll need different numbers and a tighter plan.

What Expenses Are Included in Cost of Living?

When people talk about cost of living, they are usually referring to a bundle of categories. The mix can change based on your household. The categories stay consistent, though. 

Housing

Housing is usually the biggest line item. Recent data shows that households spend over $26,000 per year on housing, averaging 33.4% of total spending. As a specific example from a 2025 analysis, the median rent is about $1,406, and the median mortgage payment is $1,904.

In a high-cost metro area, you might see rent and utilities climb. In a lower-cost area, the rent can ease up, but you may trade that for a longer commute or higher heating costs, depending on the area. 

Transportation

Transportation is often second. The same dataset shows average transportation spending of $13,318 per year, which is 17% of total spending. 

A city with a robust transit system can cut your car costs. A rural move can flip that and make a vehicle basically mandatory, which means you have to include gas, insurance, repairs and parking. 

Food and Drinks

Food costs in cost-of-living estimates usually refer to groceries, with an added baseline for eating out. According to the latest national Consumer Expenditure Survey data, the average household spent $10,269 a year on food. That is 12.9% of total spending. 

World Population Review shows Hawaii with a groceries index of 152.9 versus Mississippi at 92.2. So the same grocery list tends to feel very different depending on the state.

Health Care

Health care costs usually include insurance premiums, medical services, and subscriptions. Nationally, households spent an average of $6,197 per year on health care, which is 7.9% of total spending. 

World Population Review lists Hawaii’s health index at 115.3, while Mississippi’s is at 94.7. This includes doctors’ visits and insurance pricing shifts.

Education

Education costs can be steady or wild. It depends on your household and your timing. Nationally, households spent $1569 per year on education on average. That’s 2.0% of total spending. 

That number looks small because many households have no education spending in a given year. If you’re paying tuition or student loans, your personal share can be way higher.

Child Care

Child Care Aware of America reports a national average child care price of $13,128 per year in 2024. If you compare that to the total household spending of $78,535 it’s roughly 16.7% of a typical household’s annual spend per child.

Taxes

Taxes depend on the amount of money you make.  A Tax Foundation analysis of U.S. census data puts average state and local tax collections as $7,109 per person. If you apply this number to a two-adult household, that’s about $14,218 per year, which is roughly 18% of total spending. 

New York is listed at $12,685 per person and Washington, DC is at $14,974 per person. Meanwhile, some lower tax states like Alaska and Tennessee are described as coming in well under $5,000 per person. 

Hidden Costs

Finally, you’ll still have to set aside some of your income for other necessary expenses. This could include entertainment, clothing, toiletries, haircuts and home repairs. Any additional expense that you can think of, like HOA fees, parking and toll fees, probably falls into this category. If you are relocating, look at the cost of living to ensure you can afford to live comfortably there.

How Is Cost of Living Calculated?

The cost of living index turns a messy set of prices into one score you can compare. Most indexes start with the same idea. Pick a “basket” of common goods and services, then track what that basket costs in one place versus another. 

Understanding the Consumer Price Index 

The Consumer Price Index tracks changes in prices over time for a basket of goods and services. That makes it useful for spotting inflation trends, such as the all-items index rising almost 3% over the last 12 months. This is the step-by-step process used to create indexes:

1. Researchers select a consistent list of common products and services that an average household consumes.
2. In cities across the country, researchers gather local prices for every item on that list.
3. The prices for all items are added up for each city to get a local total.
4. Each city’s total cost is compared against the national average. The average is set to a baseline of 100, so a city with a score of 120 is 20% more expensive than average.

Other Cost of Living Indexes You Should Know

The Cost of Living Index from The Council for Community and Economic Research compares relative price levels for consumer goods and services across participating areas. The average is set to 100, so a score of about that means higher-than-average costs. 

MIT’s Living Wage Calculator is different, but still useful for relocation math. It estimates a “basic needs” budget and includes categories like housing, food, childcare, transportation, health care, taxes and a few extras, like broadband. 

What an Index Score Means for You

If one state is 20 points higher than another, then your dollars usually stretch less there. It does not mean you will spend exactly 20% more. Instead, it means the typical price level is higher there. Your habits can raise or lower that number. 

Cost of Living Comparison Between States for 2026

You can feel cost of living differences fast when you cross state lines. Housing is a big lever. Taxes and transportation can sneak in, too. A clear regional pattern emerges from the data.

The most expensive states are typically located in the Northeast and West Coast, while the most affordable states are concentrated in the South and Midwest. In nearly every high-cost state, housing is the primary factor, with costs sometimes more than double the national average. These are the five highest and lowest overall indexes: 

Category	State	Index	Housing	Groceries	Utilities	Transport
Highest	Hawaii	193.3	315.0	152.9	164.2	133.7
Highest	New York	148.2	230.1	118.4	99.8	108.7
Highest	California	142.2	201.9	113.7	124.3	131.7
Highest	Massachuesetts	135.0	177.6	119.3	111.1	111.3
Highest	Oregon	130.1	172.6	107.8	90.2	125.9
Lowest	Mississippi	83.3	66.3	92.2	90.4	86.7
Lowest	Kansas	86.5	72.6	91.7	100.2	97.3
Lowest	Alabama	87.9	70.1	98.2	100.7	92.7
Lowest	Oklahoma	87.9	74.7	94.5	95.1	94.8
Lowest	Georgia	88.8	74.4	95.9	90.5	92.6

How to Use Cost of Living Calculators 

A cost-of-living calculator helps you estimate how far your income goes in a new place. It’s quick, but also only as good as the inputs you feed it. Pull your monthly housing costs, add utilities and transportation costs, and then groceries, health costs, and childcare. If you want to run a sample city comparison, try this: 

1. Enter your current city and your target city. 
2. Add your current income. 
3. Review the percent difference by category. 
4. Translate this into one decision based on your expenses and salary. 

There are many reliable cost-of-living calculators available online. SmartAsset’s city comparison tool and MIT’s Living Wage Calculator are great sources to get started with.

How Does Cost of Living Affect Salary and Budgeting? 

If you’re wondering how to budget for high-cost-of-living areas, keep in mind that a higher salary does not always mean more breathing room. If your fixed costs jump, your budget gets tighter even with a higher salary. Real wages are what your pay can actually buy where you live, and this is a critical concept when you consider that the vast majority of jobs in the U.S. still pay less than $20 an hour.

To counteract this, some employers and benefits programs offer a cost-of-living adjustment (COLA). This is a pay increase designed to keep your purchasing power in line with rising prices. Typically, a COLA is calculated annually as a percentage increase tied to a major economic yardstick, such as the consumer price index.

If you don’t receive a COLA, or if it isn’t enough, smart budgeting is essential. Here are a few practical tips for managing your money in a high-cost area:

• Tackle the “big two” first: Housing and transportation are the largest levers in your budget. Focus on finding savings here, whether that means choosing a smaller apartment, living with roommates or picking a neighborhood with great public transit to reduce or eliminate car expenses.
• Automate your savings: Before you pay bills or buy groceries, set up an automatic transfer to your savings account. Building an emergency fund is even more critical in expensive cities, where unexpected car repairs or medical bills can be significantly higher.
• Conduct a spending audit: For one month, track every dollar you spend using a budgeting app or a simple spreadsheet. This provides a true picture of where your money is going and makes it easier to spot non-essential expenses you can cut, such as subscriptions you don’t use or frequent takeout orders.

FAQs

What is the cost of living? 

The cost of living is what you pay to cover everyday expenses in a specific place. It usually includes housing, food, transportation, health care and taxes. Understanding the cost of living is important because the same income can feel very different from place to place. 

How is the cost of living calculated? 

Most indexes start by pricing a basket of common goods and services. They then compare that basket across locations and turn the results into a score you can scan. Some tools also weigh categories based on typical household spending patterns.

What expenses are included in the cost of living? 

The factors that influence cost of living typically include housing, utilities, food, transportation, health care and taxes. Many estimates also include child care and education, since these can significantly change the total. You then need to factor in sneaky expenses like insurance costs, fees and basic household supplies. 

Which states have the lowest cost of living? 

Lower-cost states usually have lower housing costs first. That often pulls the full index down, even if groceries or utilities are average. When you compare states, look at housing and transportation together, since a cheaper home can come with a longer commute. 

How does the cost of living affect salary? 

It changes your purchasing power, which is basically the real value of your paycheck. A higher salary in a higher cost area can still leave you with less room to save. This is why relocation offers feel great on paper, but then tighten up in a month or two. 

How can you lower your cost of living? 

Start with the biggest levers. Housing and transportation usually give you the fastest wins through downsizing, refinancing, moving closer to work or cutting car costs. Then look for smaller repeat savings like insurance, shopping, meal planning and energy use. 

How do you budget for high-cost-of-living areas? 

Build your budget around fixed costs first, like rent, transit, parking, insurance and child care. Then set a “nonnegotiable savings” line, even if it starts small, since high-cost areas can lead to unexpected expenses. A cost-of-living calculator can help you sanity check the numbers before you commit. 

Putting It All Together

In essence, the cost of living measures the average price of necessities in a specific place, providing the fundamental data you need to assess your financial future. While personal spending habits vary, this baseline is essential for major life decisions, such as relocating for a job or buying a home. To translate this data into a concrete plan, use an online cost-of-living calculator to see how your budget might change and ensure your income supports your goals.

Originally Published 05/27/2021 – Updated 02/25/2026