St. Peter, IL
Population 256 · Illinois
About St. Peter, IL
St. Peter is a small community located in Illinois with a population of 256 residents according to the latest US Census Bureau American Community Survey data. The median household income is $55,000 per year, which is 27% below the national median of $75,149. The median age of 41.2 years is close to the US median age of 38.9 years.
Housing Market Overview
The housing market in St. Peter features a median home value of $91,400, which is 63% below the national median of $244,900. This makes St. Peter one of the more affordable markets in the country, potentially attractive for first-time homebuyers. Median monthly rent is $488, 58% below the national average of $1,163/month. Of the 113 total housing units, 88% are owner-occupied (92 units) and 12% are renter-occupied (12 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in St. Peter shows an unemployment rate of 0.0%, which is lower than the national rate of 3.7%, indicating a relatively strong job market. The poverty rate stands at 11.3%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in St. Peter have an average one-way commute time of 19.8 minutes, one of the shorter commutes in the region.
Education & Demographics
14.8% of St. Peter residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The lower educational attainment rate may reflect the area's industry mix, with more employment in trades, manufacturing, or agricultural sectors. The community's demographic composition includes 0.0% White, 2.0% Hispanic or Latino, 0.0% Black or African American, and 0.0% Asian residents, with 0.0% of the population being foreign-born.
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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Demographics
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Economy & Education
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Other Cities in Illinois
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 US Census Bureau American Community Survey estimates. This makes it a small community in Illinois.
What is the median household income in St. Peter?
The median household income in St. Peter, IL is $55,000 per year, which is 27% below the national median of $75,149.
What is the median home value in St. Peter?
The median home value in St. Peter, IL is $91,400, which is 63% below the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in St. Peter?
The median monthly rent in St. Peter, IL is $488, which is 58% below the national average of $1,163/month.
What is the unemployment rate in St. Peter?
The unemployment rate in St. Peter, IL is 0.0%, compared to the national average of 3.7%. This lower-than-average rate suggests a relatively healthy local job market.
Is St. Peter, IL a good place to live?
St. Peter offers a moderate cost of living, affordable housing, and a strong job market. With a population of 256 and a median age of 41.2, the city appeals to a broad range of residents.
How educated is St. Peter, IL?
14.8% of residents in St. Peter aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The educational profile reflects the area's industry mix and employment landscape.
What is the cost of living in St. Peter?
Key cost-of-living indicators for St. Peter, IL: median home value is $91,400 (63% below national), median rent is $488/month, and median household income is $55,000. The home-value-to-income ratio is 1.7x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in St. Peter?
The poverty rate in St. Peter, IL is 11.3%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is St. Peter, IL?
St. Peter's population is 0.0% White, 2.0% Hispanic or Latino, 0.0% Black or African American, 0.0% Asian, and 0.0% two or more races. 0.0% of residents are foreign-born.