A+
15%
Overall NAT. AVG.
3%
Groceries NAT. AVG.
46%
Housing NAT. AVG.
Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.
The cost of living index is based on a national average of 100. For example, if the cost of living score is 90, then the estimated cost of living is 10% lower than the national average. If the score is 110, then the estimated cost of living is 10% higher than average. The overall index is calculated using weighted estimates across major everyday expense categories, including housing (30%), groceries (16%), transportation (12%), healthcare (10%), utilities (8%), lifestyle and entertainment (8%), household expenses (8%), and education and childcare (8%). All values are AI-assisted city-level estimates designed for directional comparisons.
Index Decatur Illinois National
Cost of living8598100
Groceries98100100
Health care99100100
Housing5495100
Transportation100101100
Utilities10099100
Lifestyle & Entertainment94100100
Household Items98100100
Education & Childcare96100100
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An Overview of Cost of Living in Decatur, IL

The cost of living in Decatur affects the quality of life one can afford in this new location. It allows people to assess whether they can maintain their preferred lifestyle, including housing, leisure activities and dining options. Your total monthly expenditures can varry depending on the area, as well as many other factors. The cost of living in Decatur is 85, which is 15% lower than the national average. Knowledge of the cost of living can help individuals make informed decisions about retirement savings, investments, and financial goals.

Housing costs often consume a significant share of your take-home income, often surpassing 30%. Fortunately, Decatur distinguishes itself by reporting housing expenses that are 46% below the national average. This indicates that both owning a home and renting in this area are notably more budget-friendly compared to the rest of the nation. With such favorable housing affordability, residents of Decatur can allocate more of their income to housing, enhancing their financial flexibility.

What Do Locals Say About the Cost of Living in Decatur?

The most insightful perspective on a city comes from its residents. We recently surveyed 6 locals to gauge their perception of the cost of living in Decatur. The feedback revealed that 33% of respondents found the cost of living to be reasonable, with prices on the decline, while 67% regarded it as notably expensive with prices that continue to rise.

Is Decatur Affordable?

Wondering if Decatur is affordable? It's a question that often comes up when you're thinking about a new city since affordability can really shape your decisions. The cost of living index (covered earlier), housing expenses and income levels all play a part in the affordability equation. In Decatur, for example, the median home price is 53.3% lower than what folks pay nationally, and monthly rent is 29% lower than the usual rates. Plus, income levels matter too, with Decatur boasting a median household income of $68,944, which is 15.2% lower than the national average.

What Factors can Influence the Cost of Living in Decatur?

Urbanization: Larger, urban areas boasting abundant amenities and robust employment prospects often exhibit a heightened cost of living, driven by the increased demand for services and residential relocation. Consequently, this leads to elevated home prices and higher rental rates. In contrast, sparsely populated rural locales or regions marked by diminished demand typically offer a more limited range of amenities and experience slower job market expansion. This translates into a more affordable cost of living.

Subsidies: Certain cities or states may implement government subsidies or assistance programs with the goal of alleviating the cost of living pressures on their residents. These programs encompass a broad spectrum of support mechanisms, including Medicare, Medicaid, housing subsidies, low-income home energy assistance programs, school lunch programs, supplemental nutrition assistance programs, student loans, electric vehicle tax credits, affordable care act subsidies and farming subsidies. Areas offering fewer subsidies may experience a rise in their cost of living.

Taxes: Locations with elevated tax rates, encompassing both sales and income taxes, can be a factor in driving up the cost of living. When you're paying more in taxes for everyday household expenses, it naturally translates into higher expenses. Similarly, a higher income tax rate can also contribute to an overall higher cost of living. In Decatur, the standard sales tax rate starts at 6.25%, and the income tax rates commence at 4.95%.

Where is the Data From?

The cost of living estimates displayed for Decatur are modeled using a U.S. average baseline of 100, helping provide a useful comparison of local living expenses. Housing calculations include U.S. Census home price and rental data, while all other values are AI-assisted estimates based on regional cost patterns, climate, transportation, and everyday spending expectations. These values are intended for directional comparisons across cities.

Cost Of Living Quick Facts

  • The cost of living in Decatur is 14% lower than the Illinois average
  • The cost of living in Decatur is 15% lower than the national average
  • Decatur housing is 46% lower than the national average
  • Illinois general sales tax is 22% higher than the national average
  • Illinois state income tax is 91% higher than the national average

Most Affordable Places to Live in and Around Decatur

See all the best places to live around Decatur

Compare Decatur, IL Cost of Living

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      Median Income & Debt-To-Income Ratio

      Median Income Per Year Per Month Max Budget (28% DTI) Max Budget (36% DTI)
      Owners$91,242$7,604$2,129$2,738
      Renters$40,427$3,369$943$1,213
      A good indicator of the general affordability of housing in Decatur, IL, is the percentage of monthly income that should be spent on housing expenses, otherwise known as the debt-to-income ratio (DTI). Generally speaking, no more than 28 percent of your total gross income should be spent on your housing expenses and not more than 36 percent of your gross income on total expenses, including debts. In Decatur, the median monthly income is $91,242 for those who own their own homes. Under the standard rule, that income level would allow for $2,129 to be budgeted for housing expenses each month, at the most. Renters, on the other hand, earn about $40,427, per the median income in the area. That would allow for renters to spend up to $943 on monthly rental expenses.

      Illinois Sales Tax

      State General Sales Tax With Max Surtax
      Illinois 6.25% 10.25%

      Illinois Income Tax

      State Income Tax (Low) Income Tax (High)
      Illinois 4.95% 4.95%

      Nearby cities with low cost of living

      City Population Cost of Living Index National Avg.
      Chestnut, IL39982.1%
      Boody, IL4608317.4%
      Niantic, IL6808316.9%
      Latham, IL3668416.3%
      Dalton City, IL7398515.2%
      Decatur, IL74,1638515.3%

      Cities with similar population

      City Population Cost of Living Index National Avg.
      Turlock, CA74,18213030.4%
      Sault Ste. Marie, ON74,249n/a 
      Bowling Green, KY74,252945.8%
      Maple Grove, MN74,29111919.5%
      Wood Buffalo, AB74,298n/a 
      Decatur, IL74,1638515.3%
      Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.