St. Peter, IL
Population 256 · Illinois
About St. Peter, IL
St. Peter is a small community in Illinois with a population of 256 residents. The median household income is $55,000 per year, which is near the national average. The median age in St. Peter is 41.2 years.
Housing in St. Peter has a median home value of $91,400 and median monthly rent of $488. Of the 113 total housing units, the majority are owner-occupied, with 92 owner-occupied and 12 renter-occupied units.
The unemployment rate in St. Peter is 0.0% and the poverty rate is 11.3%. 14.8% of residents hold a bachelor's degree or higher. The average commute time is 19.8 minutes.
How St. Peter Ranks in Illinois
Cost of Living in St. Peter, IL
Compared to national averages, St. Peter has a median household income of $55,000 (27% below the national median of $75,149). Home values average $91,400, which is 63% below the national median. Monthly rent at $488 is 58% below the US average of $1,163. Within Illinois, St. Peter's income is 27% below the state average of $75,072, and home values are 45% below the state median of $165,779.
Why Live in St. Peter, IL?
St. Peter offers affordable housing with a median home value of $91,400, below the US average of $244,900, and rent that’s lower than the national average at $488/month, and a strong job market with an unemployment rate of just 0.0%. Additionally, the city features a low poverty rate of 11.3%, better than the national average, and short commute times averaging just 19.8 minutes.
Potential considerations include median household income ($55,000) that falls below the national average. However, St. Peter’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
St. Peter has a population of 256 with a median age of 41.2 years. Compare St. Peter with other cities to see how it stacks up, or explore all cities in Illinois.
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Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about St. Peter
What is the population of St. Peter, IL?
The population of St. Peter, IL is 256 according to the latest Census data.
What is the median household income in St. Peter?
The median household income in St. Peter, IL is $55,000 per year.
What is the median home value in St. Peter?
The median home value in St. Peter, IL is $91,400.
What is the average rent in St. Peter?
The median monthly rent in St. Peter, IL is $488.
What is the unemployment rate in St. Peter?
The unemployment rate in St. Peter, IL is 0.0%.