| Index | Somonauk | Illinois | National | 
| Cost of living | 100 | 96 | 100 | 
| Goods & Services | 106 | 97 | 100 | 
| Groceries | 97 | 98 | 100 | 
| Health care | 98 | 95 | 100 | 
| Housing | 96 | 95 | 100 | 
| Transportation | 114 | 103 | 100 | 
| Utilities | 80 | 89 | 100 | 

 
				
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				| 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 | $87,583 | $7,299 | $2,043 | $2,628 | 
| Renters | $45,833 | $3,819 | $1,069 | $1,375 | 
| 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 | Somonauk | National avg. | Difference | 
| Haircut | $19.72 | $24.26 | 18.7% | 
| Beauty Salon | $37.22 | $45.56 | 18.3% | 
| Toothpaste | $3.72 | $3.70 | 0.6% | 
| Shampoo | $1.32 | $1.28 | 3.3% | 
| Movie | $9.99 | $12.13 | 17.7% | 
| Bowling | $16.00 | $18.00 | 11.1% | 
| Item | Somonauk | National avg. | Difference | 
| Ground Beef | $5.94 | $5.84 | 1.8% | 
| Fried Chicken | $1.39 | $1.57 | 11.8% | 
| Milk | $4.55 | $4.67 | 2.5% | 
| Potatoes | $5.08 | $4.93 | 3.0% | 
| Pizza | $10.69 | $12.09 | 11.6% | 
| Beer | $9.61 | $10.41 | 7.7% | 
| Item | Somonauk | National avg. | Difference | 
| Optometrist | $86.67 | $125.68 | 31.0% | 
| Doctor | $110.00 | $135.78 | 19.0% | 
| Dentist | $82.00 | $113.29 | 27.6% | 
| Ibuprofen | $10.17 | $10.65 | 4.5% | 
| Lipitor | $511.00 | $468.60 | 9.0% | 
| Item | Somonauk | National avg. | Difference | 
| Home Price | $174,600.00 | $184,700.00 | 5.5% | 
| Avg. Mortgage Payment | $1,316.57 | $2,346.69 | 43.9% | 
| Apartment Rent | $932.00 | $949.00 | 1.8% | 
| Item | Somonauk | National avg. | Difference | 
| Gasoline | $3.52 | $3.46 | 1.7% | 
| Tire Balancing | $45.00 | $59.92 | 24.9% | 
| Item | Somonauk | National avg. | Difference | 
| All Electricity | $156.87 | $193.99 | 19.1% | 
| Phone | $198.03 | $192.25 | 3.0% | 
| City | Population | Cost of Living Index | National Avg. | 
| Earlville, IL | 2,057 | 91 | 8.7% | 
| Lee, IL | 380 | 87 | 12.7% | 
| Shabbona, IL | 937 | 91 | 9.4% | 
| Leland, IL | 932 | 97 | 3.5% | 
| Waterman, IL | 1,738 | 93 | 7.4% | 
| Somonauk, IL | 2,027 | 100 | 0.3% | 
| City | Population | Cost of Living Index | National Avg. | 
| Woodville, OH | 2,027 | 92 | 8.2% | 
| Wolf Creek, UT | 2,027 | 150 | 50.0% | 
| Deseronto, ON | 2,027 | n/a | |
| Port Byron, IL | 2,028 | 99 | 0.9% | 
| Greentown, IN | 2,028 | 84 | 15.6% | 
| Somonauk, IL | 2,027 | 100 | 0.3% |