Historical data
Pick an indicator to see its long-run evolution.
Cost of living index
2010–2024Composite cost of living index (U.S. average = 100).
Cost of Living Index
Composite cost of living (U.S. = 100).
Regional Price Parity, all items
2008–2024BEA Regional Price Parities (SARPP line 1).
| Indicator | Illinois | U.S. |
|---|---|---|
| Regional Price Parity, all items2024, BEA Regional Price Parities | 100 | 100 |
Housing Costs
Housing component of the cost of living.
Housing price parity (rents)
2008–2024BEA Regional Price Parities, housing (SARPP line 3).
| Indicator | Illinois | U.S. |
|---|---|---|
| Housing price parity (rents)2024, BEA Regional Price Parities | 93.9 | 100 |
Utility Costs
Energy and utility spending.
Utilities price parity
2008–2024BEA Regional Price Parities, utilities (SARPP line 4).
Electricity price per kWh (Chicago–Naperville–Elgin)
1979–2024BLS Average Price Data, annual average (APUS23A72610).
| Indicator | Illinois | U.S. |
|---|---|---|
| Utilities price parity2024, BEA Regional Price Parities | 85 | 100 |
| Average electricity bill2024, EIA | $105 | $137 |
Food Costs
Groceries and eating out.
Goods price parity
2008–2024BEA Regional Price Parities, goods (SARPP line 2).
Food price index (Chicago–Naperville–Elgin)
2006–2025BLS CPI-U food, Chicago–Naperville–Elgin, annual average (CUURS23ASAF1).
| Indicator | Illinois | U.S. |
|---|---|---|
| Goods price parity2024, BEA Regional Price Parities | 103.8 | 100 |
Healthcare Costs
Medical spending and premiums.
Medical care price index (Chicago–Naperville–Elgin)
2006–2025BLS CPI-U medical care, Chicago–Naperville–Elgin, annual average (CUURS23ASAM).
Transportation Costs
Fuel, transit and vehicle costs.
Regular gasoline price
2001–2025U.S. EIA weekly retail price, all formulations, Chicago, annual average (EMM_EPMR_PTE_YORD_DPG).
| Indicator | Illinois | U.S. |
|---|---|---|
| Regular gasoline priceWeek of 2026-10-05, U.S. EIA weekly retail price | $4.63 per gallon | $4.35 per gallon |