| Index | Charlestown | Maryland | National |
| Cost of living | 117 | 119 | 100 |
| Goods & Services | 106 | 106 | 100 |
| Groceries | 106 | 106 | 100 |
| Health care | 107 | 97 | 100 |
| Housing | 148 | 150 | 100 |
| Transportation | 108 | 98 | 100 |
| Utilities | 92 | 111 | 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 | $98,638 | $8,220 | $2,301 | $2,959 |
| Renters | $68,125 | $5,677 | $1,589 | $2,044 |
| State | General Sales Tax | With Max Surtax |
| Maryland | 6% | 6% |
| State | Income Tax (Low) | Income Tax (High) |
| Maryland | 2% | 5.75% |
| Item | Charlestown | National avg. | Difference |
| Haircut | $30.14 | $24.26 | 24.2% |
| Beauty Salon | $47.42 | $45.56 | 4.1% |
| Toothpaste | $3.61 | $3.70 | 2.4% |
| Shampoo | $1.41 | $1.28 | 10.4% |
| Movie | $12.71 | $12.13 | 4.7% |
| Bowling | $19.50 | $18.00 | 8.3% |
| Item | Charlestown | National avg. | Difference |
| Ground Beef | $5.73 | $5.84 | 1.9% |
| Fried Chicken | $1.52 | $1.57 | 3.6% |
| Milk | $4.81 | $4.67 | 3.0% |
| Potatoes | $5.40 | $4.93 | 9.5% |
| Pizza | $11.33 | $12.09 | 6.2% |
| Beer | $11.96 | $10.41 | 14.8% |
| Item | Charlestown | National avg. | Difference |
| Optometrist | $113.67 | $125.68 | 9.6% |
| Doctor | $149.53 | $135.78 | 10.1% |
| Dentist | $132.28 | $113.29 | 16.8% |
| Ibuprofen | $10.94 | $10.65 | 2.7% |
| Lipitor | $438.67 | $468.60 | 6.4% |
| Item | Charlestown | National avg. | Difference |
| Home Price | $284,300.00 | $184,700.00 | 53.9% |
| Avg. Mortgage Payment | $2,192.51 | $2,346.69 | 6.6% |
| Apartment Rent | $1,278.00 | $949.00 | 34.7% |
| Item | Charlestown | National avg. | Difference |
| Gasoline | $3.50 | $3.46 | 1.0% |
| Tire Balancing | $74.86 | $59.92 | 24.9% |
| Item | Charlestown | National avg. | Difference |
| All Electricity | $173.73 | $193.99 | 10.4% |
| Phone | $182.79 | $192.25 | 4.9% |
| City | Population | Cost of Living Index | National Avg. |
| Port Deposit, MD | 624 | 104 | 3.5% |
| Cecilton, MD | 901 | 102 | 1.9% |
| Perryman, MD | 2,397 | 104 | 3.7% |
| Aberdeen, MD | 15,904 | 105 | 4.7% |
| Betterton, MD | 412 | 105 | 4.9% |
| Charlestown, MD | 1,530 | 117 | 17.5% |
| City | Population | Cost of Living Index | National Avg. |
| Rock Creek, AL | 1,530 | 86 | 14.1% |
| Arcadia, IN | 1,530 | 86 | 14.3% |
| Fayette, MS | 1,530 | 76 | 24.0% |
| Deshler, OH | 1,530 | 88 | 11.6% |
| Pepeekeo, HI | 1,531 | 146 | 45.6% |
| Charlestown, MD | 1,530 | 117 | 17.5% |