Clayton, MO vs River Forest, IL: Cost of Living

Which city costs less?

River Forest, IL has a modeled overall cost index 16.6% higher than Clayton, MO.

Clayton, MO · modeled 2BR rent
$1,730 / month
River Forest, IL · modeled 2BR rent
$1,800 / month

These are saved estimates, not current rental listings. Some cities use adjusted regional data. Your household budget can differ from the overall index. Sources and assumptions

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Cost of Living Comparison 2026

Compare Clayton, MO and River Forest, IL using saved regional data and explicit budgeting assumptions. Rent estimates are not live listings. Change the salary below, then check the source notes before applying a result to your household.

Saved regional estimates · Sources and assumptions

$
Numbers update automatically as you type

Estimated extra cost: $1,570/month in River Forest, IL

$150,000 in your current city has a modeled equivalent of $168,835 in River Forest, IL

Regional cost estimates: Clayton, MO uses St. Louis, MO. River Forest, IL uses Chicago, IL. Available city ZIP rent estimates are shown separately.
Overall Cost
↑ 16.6%
More expensive
Monthly Impact
$1,570
Extra cost
Annual Impact
$18.8K
Per year

Assumes 60% of current gross income goes to living costs. The headline uses the category budget below; taxes, moving costs and savings goals are excluded.

Clayton, MO

Population:17K
Cost Index:
81.6
100 = national average
Typical Home:$762K

River Forest, IL

Population:11K
Cost Index:
95.2
100 = national average
Typical Home:$686K

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Clayton, MO

The Show-Me State

17K
Population
State Tax
Yes

Located in Missouri, this city has a population of 17K residents.

River Forest, IL

The Prairie State

11K
Population
State Tax
Yes

Located in Illinois, this city has a population of 11K residents.

Cost Breakdown by Category

Estimated monthly spending: Clayton, MO vs River Forest, IL

Assumes 60% of your current gross income is spent on these categories. The headline and totals use this same budget. Rent estimates below are separate reference data. Rounded amounts may differ by $1.

Housing
↑ 53.8%
Clayton, MO
$1,918
River Forest, IL
$2,951
Difference
$1,033
more
Transportation
↑ 29.7%
Clayton, MO
$1,385
River Forest, IL
$1,797
Difference
$412
more
Healthcare
↑ 9.4%
Clayton, MO
$619
River Forest, IL
$678
Difference
$58.36
more
Groceries
↑ 5.0%
Clayton, MO
$1,117
River Forest, IL
$1,173
Difference
$56.30
more
Other
↑ 2.7%
Clayton, MO
$1,831
River Forest, IL
$1,880
Difference
$48.78
more
All Utilities
↓ 6.1%
Clayton, MO
$630
River Forest, IL
$592
Difference
$38.31
less

🏠Rent Comparison

Studio
From$1,360
To$1,500
↑ $140
1 Bed
From$1,410
To$1,600
↑ $190
2 Bed
From$1,730
To$1,800
↑ $70.00
3 Bed
From$2,230
To$2,320
↑ $90.00
Clayton, MOZIP-level data

1BR range: $1,410–$1,410/mo

River Forest, ILZIP-level data

1BR range: $1,600–$1,600/mo

💡 Note: HUD Fair Market Rents estimate 40th-percentile gross rents, including most tenant-paid utilities. City ZIP summaries are medians of those estimates, not market median rents. Actual prices vary by neighborhood, amenities, and condition. Source: HUD Small Area Fair Market Rents FY2026.

$7,500
Monthly in Clayton, MO
$9,070
Monthly in River Forest, IL
$1,570
Difference

Home Values

Clayton
River Forest
$762K
Median Value
$686K
↑ +3.7%
YoY Change
↑ +10%
↑ +22.8%
5-Year Change
↑ +33.9%

Homes in River Forest are 10% less expensive than Clayton

Calculate payment - ClaytonCalculate payment - River Forest

Source: Zillow Home Value Index (ZHVI), January 2026

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings
↑ $504
Per year
Monthly Difference
$42.00
More take-home
Effective Rate Diff
0.3%
Rate difference

Clayton, MO

Federal Income Tax
Effective: 18.9%
$25.5K
Missouri State Tax
Effective: 5.3%
$7.9K
FICA Taxes
Social Security + Medicare
$11.5K
Total Taxes
Effective: 30.0%
$44.9K
Take-Home Pay
$8,755/month
$105.1K

River Forest, IL

Federal Income Tax
Effective: 18.9%
$25.5K
Illinois State Tax
Effective: 5.0%
$7.4K
FICA Taxes
Social Security + Medicare
$11.5K
Total Taxes
Effective: 29.6%
$44.4K
Take-Home Pay
$8,797/month
$105.6K

Additional Tax Information

Clayton, MO Tax Rates

Sales Tax:8.2%
Property Tax:1.0%

River Forest, IL Tax Rates

Sales Tax:8.8%
Property Tax:2.2%

💡 Note: Tax calculations are estimates based on 2024/2025 tax brackets for single filers with standard deduction. Actual taxes may vary based on filing status, deductions, credits, and local variations.

Environment

Clayton
River Forest
54 Moderate
Air Quality
54 Moderate
38%
Good Air Days
35.8%
99 High
Climate Risk
100 Very High
🌊🌡🫨
Top Hazards
🌊🌡🫨
▲+3.0°F
2050 Outlook
▲+3.2°F
39 days
Heat Days >95°F
18 days
▲+3.0°F
2050 Outlook
▲+3.2°F
39 days
Heat Days >95°F
18 days

Before moving from Clayton, MO to River Forest, IL

Use this comparison to shortlist a move, then check the costs that depend on your household.

  1. Compare actual homes. Get current quotes in River Forest, IL for the same bedroom count and included utilities as your home in Clayton, MO. Add parking, deposits, insurance and any overlapping leases. The rent estimates above are a starting point, not available listings.
  2. Confirm your income. Check your expected pay with your employer, including any location adjustment. Use “Different salary at destination?” above to compare two incomes. The budget model excludes taxes and one-time moving costs; it is not a take-home-pay calculation.
  3. Price your daily routine. Check the commute from a specific address to work, school or childcare. Add household expenses missing from this model, such as childcare, debt payments and medical needs. Verify local services before signing a lease.
  4. Plan the transition. Get moving quotes and budget for travel, setup costs and time off. Open your Clayton to River Forest moving checklist to organize the tasks and timing.

Still choosing a destination? Explore cities similar to River Forest, IL by cost, housing, population and region.

Frequently Asked Questions: Clayton, MO vs River Forest, IL

How do the cost estimates for Clayton, MO and River Forest, IL compare?

River Forest, IL has a modeled overall cost index 16.6% higher than Clayton, MO. This is a broad model comparison, not a survey of today's prices or a forecast of your household spending. Some cities use adjusted regional fallback data.

What does the equivalent salary mean?

At a $150,000 salary in Clayton, MO, the model estimates $168,835 in River Forest, IL. It allocates 60% of gross income to the origin city’s category budget and applies each destination category’s relative cost. The equivalent salary adds the total category difference to your income. The monthly difference is the same category difference divided by 12; it is not take-home pay or guaranteed savings. Household size, childcare and your actual lease are not inputs to this calculation.

What rent estimates are available for Clayton, MO and River Forest, IL?

The modeled two-bedroom rents are $1,730/month in Clayton, MO and $1,800/month in River Forest, IL. Where available, the source is a city median of HUD FY2026 ZIP-level estimates; otherwise a saved metro table is used. City adjustments may also apply. These are not asking rents or available listings. Compare actual properties with the same bedroom count and included utilities.

How should I use this comparison before moving?

Use it to shortlist locations, then replace modeled costs with a current housing quote, employer-confirmed income, commute costs, insurance and your household's other expenses. Add one-time moving costs separately. Source years differ and the saved datasets are not a live price feed. Read the methodology for the formulas and fallback rules.

💰 See how taxes change too — compare take-home pay between Missouri and Illinois on TaxTakeHome.com

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