| Index | Lake St. Louis | Missouri | National |
| Cost of living | 110 | 90 | 100 |
| Groceries | 95 | 96 | 100 |
| Health care | 98 | 97 | 100 |
| Housing | 143 | 77 | 100 |
| Transportation | 93 | 96 | 100 |
| Utilities | 92 | 95 | 100 |
| Lifestyle & Entertainment | 98 | 95 | 100 |
| Household Items | 99 | 97 | 100 |
| Education & Childcare | 99 | 95 | 100 |
Knowing the cost of living in Lake St. Louis allows individuals to create a realistic budget. This helps them understand how their income will cover expenses and whether they need to make financial adjustments. The cost of living in any region can fluctuate due to various factors. To assess the cost of living consistently across different areas, a national average of 100 serves as the basis for the cost of living index. The cost of living in Lake St. Louis stands at 110, marking it 10% higher than the national average.
Housing costs are a major factor in the Lake St. Louis cost of living index, and they often eat up a big chunk of your take-home pay. Unfortunately, in this area, housing expenses for both homeownership and rentals were 43.3% higher than what's typical in an average city. That includes the prices of homes and rents, as well as mortgage rates and insurance.
Is Lake St. Louis affordable? This is a pivotal question, especially when mulling over a move, as affordability carries substantial weight in your decision-making process. Factors such as the cost of living index (discussed earlier), housing expenses and income levels all contribute to a location's affordability. For instance, in Lake St. Louis, the median home price is 53.1% higher than the national average and monthly rent prices are 20.5% higher than the typical rates. Additionally, the median income levels play a role in affordability, with Lake St. Louis boasting a median household income of $147,806, 81.7% higher than the national average.
Groceries: Grocery prices have seen substantial hikes in the last 2-3 years, with some markets witnessing food cost increases of over 20% during this period. Conversely, certain markets have experienced only moderate upticks. These variations in food expenses can have a substantial impact on the overall cost of living in any locality. In Lake St. Louis, the groceries index is 4.9% lower than the national average.
Urbanization: Larger, urban hubs brimming with ample amenities and robust employment opportunities often showcase a heightened cost of living. This surge is primarily attributed to the amplified demand for services and increased residential migration, culminating in elevated home prices and elevated rental rates. Conversely, less densely populated rural locales or regions characterized by reduced demand tend to offer a more limited array of amenities and undergo slower job market growth, ultimately yielding a more affordable cost of living.
Transportation: In cities with limited or no public transportation, residents may find it necessary to own and maintain vehicles, thereby elevating the cost of living. Monthly expenditures include fuel, insurance, routine maintenance and potential lease or financing commitments. In Lake St. Louis, the transportation index stands at 6.9% lower than the national average.
The Lake St. Louis cost of living estimates above use a normalized U.S. average of 100 as the baseline for comparison. Housing values incorporate local home price and rental information from the U.S. Census, while all other estimates are AI-assisted and modeled using expected everyday expenses, local market trends, climate, and transportation-related cost pressures. The results are intended for practical city-to-city comparisons.
| Cost of living index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $160,662 | $13,389 | $3,749 | $4,820 |
| Renters | $98,859 | $8,238 | $2,307 | $2,966 |
| State | General Sales Tax | With Max Surtax |
| Missouri | 4.225% | 10.85% |
| State | Income Tax (Low) | Income Tax (High) |
| Missouri | 2% | 4.95% |
| City | Population | Cost of Living Index | National Avg. |
| Defiance, MO | 70 | 96 | 4.3% |
| Three Creeks, MO | 4 | 96 | 4.3% |
| Fountain N' Lakes, MO | 241 | 82 | 18.1% |
| Brussels, IL | 117 | 82 | 17.9% |
| Winfield, MO | 2,007 | 88 | 11.9% |
| Lake St. Louis, MO | 16,749 | 110 | 10.1% |
| City | Population | Cost of Living Index | National Avg. |
| Fort Hunt, VA | 16,749 | 188 | 87.6% |
| Hernando, MS | 16,752 | 101 | 0.8% |
| Uvalde, TX | 16,753 | 88 | 12.5% |
| Rio Linda, CA | 16,757 | 129 | 28.6% |
| Kaukauna, WI | 16,758 | 94 | 6.4% |
| Lake St. Louis, MO | 16,749 | 110 | 10.1% |
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