Sullivan, IL vs Mountain Grove, MO: Cost of Living

Which city costs less?

Mountain Grove, MO has a modeled overall cost index 11.9% lower than Sullivan, IL.

Sullivan, IL · modeled 2BR rent: $980 / month
Mountain Grove, MO · modeled 2BR rent: $1,050 / 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 Sullivan, IL and Mountain Grove, MO 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

Current salary in Sullivan, IL

Numbers update automatically as you type

Estimated savings: $755/month in Mountain Grove, MO

$150,000 in your current city has a modeled equivalent of $140,937 in Mountain Grove, MO

Regional cost estimates: Sullivan, IL uses St. Louis, MO. Mountain Grove, MO uses St. Louis, MO. Available city ZIP rent estimates are shown separately.

Overall Cost

↓ 11.9%

Less expensive

Monthly Impact

$755

Savings

Annual Impact

$9.1K

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.

Sullivan, IL

Population:4K

Cost Index:

81.8

100 = national average

Typical Home:$183K

Mountain Grove, MO

Population:5K

Cost Index:

72.0

100 = national average

Typical Home:$192K

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Sullivan, IL

The Prairie State

Population

State Tax

Yes

Located in Illinois, this city has a population of 4K residents.

Mountain Grove, MO

The Show-Me State

Population

State Tax

Yes

Located in Missouri, this city has a population of 5K residents.

Cost Breakdown by Category

Estimated monthly spending: Sullivan, IL vs Mountain Grove, MO

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.

Category	Sullivan, IL	Mountain Grove, MO	Difference	Change
Housing	$1,919/mo	$1,691/mo	↓ $228less	11.9%
Other	$1,831/mo	$1,614/mo	↓ $218less	11.9%
Transportation	$1,385/mo	$1,221/mo	↓ $165less	11.9%
Groceries	$1,116/mo	$1,047/mo	↓ $68.40less	6.1%
All Utilities	$629/mo	$591/mo	↓ $38.59less	6.1%
Healthcare	$619/mo	$581/mo	↓ $37.95less	6.1%

Housing

↓ 11.9%

Sullivan, IL

$1,919

Mountain Grove, MO

$1,691

Difference

$228

less

Other

↓ 11.9%

Sullivan, IL

$1,831

Mountain Grove, MO

$1,614

Difference

$218

less

Transportation

↓ 11.9%

Sullivan, IL

$1,385

Mountain Grove, MO

$1,221

Difference

$165

less

Groceries

↓ 6.1%

Sullivan, IL

$1,116

Mountain Grove, MO

$1,047

Difference

$68.40

less

All Utilities

↓ 6.1%

Sullivan, IL

$629

Mountain Grove, MO

$591

Difference

$38.59

less

Healthcare

↓ 6.1%

Sullivan, IL

$619

Mountain Grove, MO

$581

Difference

$37.95

less

🏠Rent Comparison

Studio

From$680

To$770

↑ $90.00

1 Bed

From$750

To$800

↑ $50.00

2 Bed

From$980

To$1,050

↑ $70.00

3 Bed

From$1,360

To$1,450

↑ $90.00

Sullivan, ILZIP-level data

1BR range: $750–$750/mo

Mountain Grove, MOZIP-level data

1BR range: $800–$800/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 Sullivan, IL

$6,745

Monthly in Mountain Grove, MO

$755

Difference

Home Values

Sullivan

Mountain Grove

$183K

Median Value

$192K

↑ +8.4%

YoY Change

↓ -5.3%

↑ +39.6%

5-Year Change

↑ +37.7%

Homes in Mountain Grove are 5% more expensive than Sullivan

Calculate payment - Sullivan Calculate payment - Mountain Grove

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

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

↓ $504

More taxes

Monthly Difference

$42.00

Less take-home

Effective Rate Diff

0.3%

Rate difference

Sullivan, 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

Mountain Grove, 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

Additional Tax Information

Sullivan, IL Tax Rates

Sales Tax:8.8%

Property Tax:2.2%

Mountain Grove, MO Tax Rates

Sales Tax:8.2%

Property Tax:1.0%

💡 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

Sullivan

Mountain Grove

54 Moderate

Air Quality

54 Moderate

38%

Good Air Days

38%

99 High

Climate Risk

99 High

🌊🌡🫨

Top Hazards

🌊🌡🫨

▲+3.0°F

2050 Outlook

▲+3.0°F

39 days

Heat Days >95°F

39 days

▲+3.0°F

2050 Outlook

▲+3.0°F

39 days

Heat Days >95°F

39 days

Before moving from Sullivan, IL to Mountain Grove, MO

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

Compare actual homes. Get current quotes in Mountain Grove, MO for the same bedroom count and included utilities as your home in Sullivan, IL. Add parking, deposits, insurance and any overlapping leases. The rent estimates above are a starting point, not available listings.
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.
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.
Plan the transition. Get moving quotes and budget for travel, setup costs and time off. Open your Sullivan to Mountain Grove moving checklist to organize the tasks and timing.

Still choosing a destination? Explore cities similar to Mountain Grove, MO by cost, housing, population and region.

Frequently Asked Questions: Sullivan, IL vs Mountain Grove, MO

How do the cost estimates for Sullivan, IL and Mountain Grove, MO compare?

Mountain Grove, MO has a modeled overall cost index 11.9% lower than Sullivan, IL. 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 Sullivan, IL, the model estimates $140,937 in Mountain Grove, MO. 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 Sullivan, IL and Mountain Grove, MO?

The modeled two-bedroom rents are $980/month in Sullivan, IL and $1,050/month in Mountain Grove, MO. 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 Illinois and Missouri on TaxTakeHome.com

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