St. Peter is a small town of 289 in Illinois, with a median household income of $65,208
.
Its cost of living index is 88 (US average = 100), which is
12% below the national average.
Strengths:
St. Peter stands out for an affordable cost of living, below-average home prices, short average commutes.
Trade-offs:
No major red flags stand out in the available data. Whether St. Peter is right for you depends on your priorities — the full breakdown is below.
All St. Peter city data on this page comes from official government sources —
the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.
Cost of Living
Index: 88.4
St. Peter's overall cost of living index is 88.4,
where 100 represents the US national average.
Living in St. Peter costs roughly 12% less than the average American city.
Metric
St. Peter, IL
National Avg
Median Home Value
$91,700
$244,900
Median Monthly Rent
$575
$1,163
Homeownership Rate
90.7%
65.9%
Median Household Income
$65,208
$74,755
Crime & Safety
Very Safe
St. Peter's violent crime rate is 28.1 per 100,000 residents
— 93% lower than the national average of ~380 per 100,000.
Violent Crime
28.1 /100k
Property Crime
501.5 /100k
Vertical marker = national average. Source: FBI UCR Program.
Schools & Education
Metric
St. Peter, IL
National Avg
School District
N/A
—
Elementary Schools
N/A
—
Middle Schools
N/A
—
High Schools
N/A
—
Student/Teacher Ratio
N/A
16:1
Bachelor's Degree or Higher
19.4%
35.4%
High School Diploma or Higher
92.1%
91.1%
Weather & Climate
St. Peter sees average highs of 37.0°F in January
and 86.7°F in July,
with 44.6 inches of annual precipitation
and 14.7 inches of snow per year.
St. Peter's cost of living index is 88, where 100 is the national average.
That makes St. Peter roughly 12% less expensive than a typical US city — a meaningful affordability advantage.
The median home price is $91,700 and median rent is $575/month.
St. Peter's violent crime rate is 28.1 per 100,000 residents — the national average is ~380 per 100,000. Property crime is 501.5 per 100,000 (national avg ~2,100). Data from the FBI Uniform Crime Reporting Program.
School district information is sourced from NCES Common Core of Data.
St. Peter, IL has a population of 289, a median household income of $65,208, and an unemployment rate of 0.0%.
It offers below-average costs of living, which stretches take-home pay further than in most American cities. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.
St. Peter averages 37.0°F in January and 86.7°F in July. Annual rainfall is 44.6 inches
with about 14.7 inches of snow per year.
Based on NOAA 30-year climate normals (1991–2020).
St. Peter, IL is covered by 1 ZIP code: 62880.
The population of St. Peter, Illinois is 289 with a median age of 39.7. Source: US Census ACS 5-Year Estimates.
Key numbers for living in St. Peter: cost of living index 88 (100 = US average), median home $91,700, median household income $65,208, crime index 14 (100 = US average, lower is safer). Whether these are benefits or drawbacks depends on where you're coming from — compare St. Peter side by side with your current city to see the trade-offs.