| Index | St. Johns | Illinois | National | 
| Cost of living | 79 | 96 | 100 | 
| Goods & Services | 92 | 97 | 100 | 
| Groceries | 97 | 98 | 100 | 
| Health care | 89 | 95 | 100 | 
| Housing | 44 | 95 | 100 | 
| Transportation | 94 | 103 | 100 | 
| Utilities | 102 | 89 | 100 | 

 
				
Why stop at city-to-city? With Local Insights, you can compare neighborhoods, zip codes, or even exact addresses. Access 300+ hyperlocal data points—from schools and crime to housing and amenities—to see which area is the better fit.
 
				| Cost of living index | |
| Goods & Services index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | 
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) | 
| Owners | $38,750 | $3,229 | $904 | $1,163 | 
| Renters | $19,688 | $1,641 | $459 | $591 | 
| State | General Sales Tax | With Max Surtax | 
| Illinois | 6.25% | 10.25% | 
| State | Income Tax (Low) | Income Tax (High) | 
| Illinois | 4.95% | 4.95% | 
| Item | St. Johns | National avg. | Difference | 
| Haircut | $21.19 | $24.26 | 12.7% | 
| Beauty Salon | $40.57 | $45.56 | 11.0% | 
| Toothpaste | $3.75 | $3.70 | 1.3% | 
| Shampoo | $1.11 | $1.28 | 13.3% | 
| Movie | $11.28 | $12.13 | 7.1% | 
| Bowling | $16.92 | $18.00 | 6.0% | 
| Item | St. Johns | National avg. | Difference | 
| Ground Beef | $6.40 | $5.84 | 9.7% | 
| Fried Chicken | $1.36 | $1.57 | 13.3% | 
| Milk | $4.50 | $4.67 | 3.7% | 
| Potatoes | $5.28 | $4.93 | 6.9% | 
| Pizza | $10.84 | $12.09 | 10.3% | 
| Beer | $9.47 | $10.41 | 9.1% | 
| Item | St. Johns | National avg. | Difference | 
| Optometrist | $125.72 | $125.68 | 0.0% | 
| Doctor | $124.51 | $135.78 | 8.3% | 
| Dentist | $100.78 | $113.29 | 11.0% | 
| Ibuprofen | $10.14 | $10.65 | 4.8% | 
| Lipitor | $520.16 | $468.60 | 11.0% | 
| Item | St. Johns | National avg. | Difference | 
| Home Price | $68,800.00 | $184,700.00 | 62.8% | 
| Avg. Mortgage Payment | $1,737.43 | $2,346.69 | 26.0% | 
| Apartment Rent | $575.00 | $949.00 | 39.4% | 
| Item | St. Johns | National avg. | Difference | 
| Gasoline | $3.20 | $3.46 | 7.6% | 
| Tire Balancing | $50.00 | $59.92 | 16.6% | 
| Item | St. Johns | National avg. | Difference | 
| All Electricity | $133.84 | $193.99 | 31.0% | 
| Phone | $188.69 | $192.25 | 1.9% | 
| City | Population | Cost of Living Index | National Avg. | 
| Mulkeytown, IL | 128 | 94 | 5.9% | 
| Hurst, IL | 756 | 76 | 23.9% | 
| Dowell, IL | 356 | 76 | 23.6% | 
| Zeigler, IL | 1,779 | 77 | 23.3% | 
| Bush, IL | 303 | 77 | 23.2% | 
| St. Johns, IL | 160 | 79 | 20.9% | 
| City | Population | Cost of Living Index | National Avg. | 
| Tomales, CA | 160 | 187 | 86.6% | 
| Dewy Rose, GA | 160 | 96 | 3.9% | 
| Alexander, IA | 160 | 78 | 21.7% | 
| Andover, IA | 160 | 82 | 17.5% | 
| Stockton, IA | 160 | 87 | 12.7% | 
| St. Johns, IL | 160 | 79 | 20.9% |