Cost Of Living in St. Mary's, CO

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B

9%

Overall NAT. AVG.

6%

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	St. Mary's	Colorado	National
Cost of living	109	115	100
Groceries	106	104	100
Health care	107	107	100
Housing	n/a	136	100
Transportation	107	106	100
Utilities	107	108	100
Lifestyle & Entertainment	114	107	100
Household Items	107	105	100
Education & Childcare	118	111	100

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Homes For Sale In St. Mary's, CO

406 Glory Hole Rd

St Mary's, CO

Lot 406 Glory Hole Rd

St Mary's, CO

1111 Vista Rd

Idaho Springs, CO

14 Deer Rd

Idaho Springs, CO

Cost Of Living Quick Facts

The cost of living in St. Mary's is 5% lower than the Colorado average
The cost of living in St. Mary's is 9% higher than the national average
St. Mary's housing is 34% higher than the national average
Colorado general sales tax is 43% lower than the national average
Colorado state income tax is 69% 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	$89,511	$7,459	$2,088	$2,686
Renters	$0	$0	$0	$0

Colorado Sales Tax

State	General Sales Tax	With Max Surtax
Colorado	2.9%	10%

Colorado Income Tax

State	Income Tax (Low)	Income Tax (High)
Colorado	4.4%	4.4%

Nearby cities with low cost of living

City	Population	Cost of Living Index	National Avg.
Tabernash, CO	643	106	5.6%
Eldora, CO	364	106	5.6%
Coal Creek town, CO	318	105	5.4%
Silver Plume, CO	178	114	13.6%
Idaho Springs, CO	1,909	119	19.5%
St. Mary's, CO	426	109	8.9%

Cities with similar population

City	Population	Cost of Living Index	National Avg.
Chefornak, AK	426	95	5.2%
Damascus, AR	426	88	11.9%
Lake View, AR	426	77	22.9%
Earling, IA	426	84	15.8%
Loraine, IL	426	84	16.4%
St. Mary's, CO	426	109	8.9%