St. Peters, MO Cost Of Living

Demographics | Crime | Cost Of Living
Updated: 2025-10-24

Cost Of Living In St. Peters, MO Summary

Cost of living in St. Peters research summary. The cost of living index is set to 100 for the average place in the United States. A cost of living index above 100 means St. Peters is expensive. An index value below 100 means the city is a relatively cheap place to live.

On a city-by-city basis in Missouri, home prices and rent have the biggest impact on the cost of living. Here are the key takeaways based on Saturday Night Science:

  • The cost of living index in St. Peters is 96, with 100 being the average.

  • The cost of living index in St. Peters is 1.0x lower than the national average.

  • St. Peters ranks as the #99 cheapest in Missouri out of 142.

  • St. Peters ranks as the #2,104 cheapest out of 6,489 in the US.

  • The median home value in St. Peters is $308,917.

  • The median income in St. Peters is $89,827.

Table Of Contents

  1. Summary
  2. National Comparison
  3. Housing Breakdown
  4. Detailed Pricing
  5. Nearby Comparisons
96
St. Peters's Overall Cost Of Living
1.0x
Lower Than The National Average

What is the cost of living in St. Peters, MO?

According to the most recent data on the cost of living, St. Peters has an overall cost of living index of 96, which is 1.0x lower than the national index of 100.

Compared to Missouri, St. Peters has a cost of living index that's 1.1x higher than Missouri's index of 88.

The standard of living in St. Peters ranks as #99 most affordable out of the 142 places we measured in Missouri. By definition, that implies St. Peters ranks as the #43 most expensive place in the Show Me State.

For more reading on life in St. Peters, check out:

99 out of 142
In Missouri
2,104 out of 6,489
In America

St. Peters Cost Of Living Vs. Missouri

Six factors go into calculating the cost of living index in St. Peters. Here is how it fairs on each of the criteria:

  • The Services index in St. Peters is 93.

  • The Groceries index in St. Peters is 97.

  • The Health index in St. Peters is 87.

  • The Housing index in St. Peters is 104.

  • The Transportation index in St. Peters is 92.

  • The Utilities index in St. Peters is 102.

Living Expense St. Peters Missouri National Average
Overall 96 88 100
Services 93 93 100
Groceries 97 96 100
Health 87 91 100
Housing 104 78 100
Transportation 92 90 100
Utilities 102 99 100
For more reading on cost of living around Missouri, check out:
St. Peters Cost of Living Vs. MO

St. Peters, MO Housing Cost Breakdown

Housing swings affordability the most between places in Missouri, so we broke down housing costs into more detail. Home and income data comes from the most recent US Census ACS 2019-2023. The key points are:

  • The Median Home Value in St. Peters is $308,917.

  • The Median Rent in St. Peters is $1,291.

  • The Median Income in St. Peters is $89,827.

  • The Home Value To Income in St. Peters is 3.4x.

  • The Rent To Monthly Income in St. Peters is 0.17x.

Statistic St. Peters Missouri United States
Median Home Value $308,917 $257,929 $303,400
Median Rent $1,291 $996 $1,348
Median Income $89,827 $68,920 $78,538
Home Value To Income 3.4x 3.7x 3.9x
Rent To Monthly Income 0.17x 0.17x 0.21x
$308,917
Median Home Value
$1,291
Median Rent
$89,827
Median Income

St. Peters, MO Costs By Category

Detailed St. Peters Services Costs Vs. Missouri

Item St. Peters Missouri
Shampoo $1.11 $1.28
Movie $11.28 $12.13
Bowling $16.92 $18
Haircut $21.19 $24.26
Beauty Salon $40.57 $45.56

Detailed St. Peters Groceries Costs Vs. Missouri

Item St. Peters Missouri
Ground Beef $6.4 $5.84
Fried Chicken $1.36 $1.57
Milk $4.5 $4.67
Potatoes $5.28 $4.93
Pizza $10.84 $12.09
Beer $9.47 $10.41
Toothpaste $3.75 $3.7

Detailed St. Peters Health Costs Vs. Missouri

Item St. Peters Missouri
Optometrist $125.72 $125.68
Doctor $124.51 $135.78
Dentist $100.78 $113.29

Detailed St. Peters Transportation Costs Vs. Missouri

Item St. Peters Missouri
Gasoline $3.2 $3.46
Tire Balancing $50.0 $59.92

Detailed St. Peters Utilities Costs Vs. Missouri

Item St. Peters Missouri
All Electricity $133.84 $193.99
Phone $188.69 $192.25

St. Peters SnackAbility

8.5
/10
Overall SnackAbility
Jobs
8.5/10
Housing
8
Affordability
8.5
Diversity
6
Safety
6
Amenities
9
Education
8.5
Commute
8

Cost Of Living In Cities Around St. Peters

The cost of living varies in the cities and towns around St. Peters. Here's a quick look at the cost of living in the most populous nearby places:

  • O'Fallon, MO has a cost of living index of 105, 1.1x St. Peters.

  • St. Charles, MO has a cost of living index of 101, 1.1x St. Peters.

  • Chesterfield, MO has a cost of living index of 121, 1.3x St. Peters.

City Population Cost Of Living Vs. St. Peters
O'Fallon, MO 92,697 105 1.1x
St. Charles, MO 71,048 101 1.1x
Chesterfield, MO 49,591 121 1.3x
Wildwood, MO 35,168 124 1.3x
Ballwin, MO 30,835 109 1.1x
Kirkwood, MO 29,302 117 1.2x
Maryland Heights, MO 27,981 92 1.0x
Old Jamestown, MO 21,121 101 1.1x
Dardenne Prairie, MO 13,137 113 1.2x
Town and Country, MO 11,605 161 1.7x

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