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WatchPennies estimates cost of living by US county across housing, food, transportation, healthcare, childcare, other necessities, taxes, and income context.

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St. Louis County, MO vs Prince George's County, MD: Cost of Living Difference

Is it cheaper?

St. Louis County, MO is cheaper than Prince George's County, MD.

Moving to Prince George's County, MD is estimated to cost $17,661 more per year.

Cheaper County

St. Louis County, MOSpend $17,661 more per year.

Salary needed

$50,000 in St. Louis County, MO is about $68,295 in Prince George's County, MD.

Biggest drivers

Housing increases by $8,985 per year. Healthcare saves $706 per year.

Housing: $8,985 higher in Prince George's County, MD

Taxes: $5,695 higher in Prince George's County, MD

Childcare: about the same in both counties

Healthcare: $706 lower in Prince George's County, MD

Food: $173 lower in Prince George's County, MD

Transport: $1,125 higher in Prince George's County, MD

St. Louis County, MO→Prince George's County, MD

Equivalent salary in Prince George's County, MD

$68,295

+36.59% higher

Current salary: $50,000

Household: 1 adult · 0 children

Median Income in St. Louis County, MO: $108,392

Median Income in Prince George's County, MD: $118,434

Living Index in St. Louis County, MO 44.53%

Living Index in Prince George's County, MD 55.67%

This estimate matches your purchasing power (equivalent salary) when moving from St. Louis County, MO to Prince George's County, MD.

* Living index is estimated as (estimated total cost / area median income) * 100. A living index above 100% means modeled costs exceed median income.

Cost of Living Breakdown by Category

Summary

Moving from St. Louis County, MO to Prince George's County, MD is estimated to cost $17,661 more per year. To maintain similar purchasing power, a $50,000 salary in St. Louis County, MO would need to be about $68,295 in Prince George's County, MD. The biggest increase is housing, followed by taxes.

This is a 36.59% increase in modeled annual costs. Housing is $8,985 per year higher (72.88%); Taxes is $5,695 per year higher (61.83%).

Below we break down the annual categories behind the difference using Economic Policy Institute 2026 Family Budget data.

What changed the most?

The following cards show the annual category differences that most affect the move to Prince George's County, MD.

Biggest Cost

Largest annual cost increase when moving to Prince George's County, MD

Annual Increase:

$8,985 per year

HOUSING has the largest annual increase when moving to Prince George's County, MD.

Biggest Savings

Largest annual savings when moving to Prince George's County, MD

Annual Savings:

$706 per year

HEALTHCARE has the largest annual savings when moving to Prince George's County, MD.

Breakdown of price percentages per category.

Numbers are average costs per section.

Category	Difference
Housing	72.88% higher
St. Louis County, MO Prince George's County, MD Average Cost $12328.00 $21313.00 INFO: Housing costs are based on Department of Housing and Urban Development data. The estimate uses 40th percentile rent for privately owned rental units in each area. Studio apartments are paired with one-adult households, one-bedroom apartments with two-adult households, and two-bedroom apartments with households that have children.
Food	-3.66% lower
St. Louis County, MO Prince George's County, MD Average Cost $4731.00 $4558.00 INFO: Food costs are based on the U.S. Department of Agriculture's food plans. Numbers are normalized to each area using Feeding America and Meal Gap data. This estimate assumes most food is bought at local grocery stores and prepared at home.
Transport	9.61% higher
St. Louis County, MO Prince George's County, MD Average Cost $11710.00 $12835.00 INFO: Transportation costs are a combination of auto ownership, auto use, and public transit. Data is collected from the Center for Neighborhood Technology (CNT).
Healthcare	-14.13% lower
St. Louis County, MO Prince George's County, MD Average Cost $4996.00 $4290.00 INFO: Healthcare expenses come from average insurance premiums and out-of-pocket costs. The estimate assumes families purchase the lowest-cost available insurance plan under the Affordable Care Act. Data comes from Kaiser Family Foundation and the U.S. Department of Health and Human Services (HHS).
Other Costs	51.66% higher
St. Louis County, MO Prince George's County, MD Average Cost $5296.00 $8032.00 INFO: This cost is calculated through the average spending of categories deemed necessary by the Bureau of Labor Statistics Consumer Expenditure Survey. These include apparel, personal care, household supplies, reading materials, and school supplies.
Childcare	0.00% higher
St. Louis County, MO Prince George's County, MD Average Cost $0.00 $0.00 INFO: Childcare expenses are based on combined costs for center-based care and family-based care for 4-year-olds and school-aged children. For households with one child, the estimate assumes the child is 4 years old. For households with two children, the estimate assumes the second child is 8 years old.
Taxes	61.83% higher
St. Louis County, MO Prince George's County, MD Average Cost $9210.00 $14905.00 INFO: Taxes are calculated from the National Bureau of Economic Research. The number weighs in personal income tax, state income tax, federal Social Security, and Medicare taxes.

In Prince George's County, MD, modeled annual costs are $65,933 compared with $48,272 in St. Louis County, MO.

Overall, annual costs are higher in Prince George's County, MD. The category breakdown above shows whether housing, taxes, transportation, healthcare, food, childcare, or other necessities are driving the increase.

In this case Prince George's County, MD and St. Louis County, MO are both metropolitan locations.

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