What is the cost of living in Troy, IL?
According to the most recent data on the cost of living, Troy has an overall cost of living index of 102, which is 1.0x higher than the national index of 100.
Compared to Illinois, Troy has a cost of living index that's 1.0x higher than Illinois's index of 98.
The standard of living in Troy ranks as #163 most affordable out of the 336 places we measured in Illinois. By definition, that implies Troy ranks as the #173 most expensive place in the Prairie State.
For more reading on life in Troy, check out:
Troy Cost Of Living Vs. Illinois
Six factors go into calculating the cost of living index in Troy. Here is how it fares on each of the criteria:
The Services index in Troy is 101.
The Groceries index in Troy is 96.
The Health index in Troy is 101.
The Housing index in Troy is 98.
The Transportation index in Troy is 101.
The Utilities index in Troy is 99.
| Living Expense | Troy | Illinois | National Average |
|---|---|---|---|
| Overall | 102 | 98 | 100 |
| Services | 101 | 99 | 100 |
| Groceries | 96 | 99 | 100 |
| Health | 101 | 96 | 100 |
| Housing | 98 | 101 | 100 |
| Transportation | 101 | 99 | 100 |
| Utilities | 99 | 101 | 100 |
Troy Cost Of Living Compared To Illinois Averages
Index where 100 = national average. Source: cost-of-living index 2026.
For more reading on cost of living around Illinois, check out:
Protect your home budget Compare home warranties in Troy Get matched →Source: Cost-of-living index 2026, normalized to US average = 100
Troy, IL Housing Cost Breakdown
Housing swings affordability the most between places in Illinois, so we broke down housing costs into more detail. Home and income data comes from the most recent US Census ACS 2020-2024. The key points are:
The Median Home Value in Troy is $324,854.
The Median Rent in Troy is $1,116.
The Median Income in Troy is $112,434.
The Home Value To Income in Troy is 2.9x.
The Rent To Monthly Income in Troy is 0.12x.
Troy, IL Costs By Category
Detailed Troy Services costs vs. Illinois
Detailed Troy Groceries costs vs. Illinois
Detailed Troy Health costs vs. Illinois
Detailed Troy Transportation costs vs. Illinois
Troy SnackAbility
Cost Of Living In Cities Around Troy
The cost of living varies in the cities and towns around Troy. Here's a quick look at the cost of living in the most populous nearby places:
O'Fallon, IL has a cost of living index of 107, 1.0x Troy.
Edwardsville, IL has a cost of living index of 104, 1.0x Troy.
Collinsville, IL has a cost of living index of 91, 0.9x Troy.
| City | Population | Cost Of Living | Vs. Troy |
|---|---|---|---|
| O'Fallon, IL | 32,262 | 107 | 1.0x |
| Edwardsville, IL | 26,474 | 104 | 1.0x |
| Collinsville, IL | 24,031 | 91 | 0.9x |
| Fairview Heights, IL | 16,745 | 95 | 0.9x |
| Swansea, IL | 14,710 | 100 | 1.0x |
| Shiloh, IL | 14,572 | 104 | 1.0x |
| Glen Carbon, IL | 13,977 | 106 | 1.0x |
| Highland, IL | 10,262 | 96 | 0.9x |
| Bethalto, IL | 9,239 | 91 | 0.9x |
| Mascoutah, IL | 8,816 | 100 | 1.0x |
