Cost Of Living in Marietta, IL

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A+

1%

Overall NAT. AVG.

0%

Groceries NAT. AVG.

100%

Housing NAT. AVG.

Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.

The cost of living index is based on a national average of 100. For example, if the cost of living score is 90, then the estimated cost of living is 10% lower than the national average. If the score is 110, then the estimated cost of living is 10% higher than average. The overall index is calculated using weighted estimates across major everyday expense categories, including housing (30%), groceries (16%), transportation (12%), healthcare (10%), utilities (8%), lifestyle and entertainment (8%), household expenses (8%), and education and childcare (8%). All values are AI-assisted city-level estimates designed for directional comparisons.
Index	Marietta	Illinois	National
Cost of living	99	98	100
Groceries	100	100	100
Health care	99	100	100
Housing	n/a	95	100
Transportation	101	101	100
Utilities	97	99	100
Lifestyle & Entertainment	96	100	100
Household Items	102	100	100
Education & Childcare	100	100	100

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Homes For Sale In Marietta, IL

0 E Pony Rd

Marietta, IL

0 Illinois 95

Marietta, IL

N Pheasant Ln

Harris Township, IL

Cost Of Living Quick Facts

The cost of living in Marietta is 1% higher than the Illinois average
The cost of living in Marietta is 1% lower than the national average
Marietta housing is equal to the national average
Illinois general sales tax is 22% higher than the national average
Illinois state income tax is 91% higher than the national average

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Price difference in compared to

Cost of living index
Groceries index
Health care index
Housing index
Transportation index
Utilities index
Lifestyle index
Household index
Educare index

Median Income & Debt-To-Income Ratio

Median Income	Per Year	Per Month	Max Budget (28% DTI)	Max Budget (36% DTI)
Owners	$74,467	$6,206	$1,737	$2,234
Renters	$0	$0	$0	$0

Illinois Sales Tax

State	General Sales Tax	With Max Surtax
Illinois	6.25%	10.25%

Illinois Income Tax

State	Income Tax (Low)	Income Tax (High)
Illinois	4.95%	4.95%

Nearby cities with low cost of living

City	Population	Cost of Living Index	National Avg.
Bardolph, IL	286	75	25.0%
Ellisville, IL	100	75	24.7%
Vermont, IL	767	77	22.7%
Smithfield, IL	189	78	22.1%
Avon, IL	711	80	19.6%
Marietta, IL	63	99	0.8%

Cities with similar population

City	Population	Cost of Living Index	National Avg.
Jennette, AR	63	78	22.0%
Mount Hebron, CA	63	107	7.1%
Rodriguez Camp, CA	63	117	16.7%
Olowalu, HI	63	303	203.5%
Bradford, IA	63	96	4.1%
Marietta, IL	63	99	0.8%