St. Joseph, IL
Population 3,833 · Illinois
About St. Joseph, IL
St. Joseph is a small town located in Illinois with a population of 3,833 residents according to the latest US Census Bureau American Community Survey data. The median household income is $114,594 per year, which is 52% above the national median of $75,149. The median age of 39.9 years is close to the US median age of 38.9 years.
Housing Market Overview
The housing market in St. Joseph features a median home value of $257,400, which is 5% above the national median of $244,900. This positions St. Joseph in a moderately priced market relative to the rest of the country. Median monthly rent is $969, 17% below the national average of $1,163/month. Of the 1,511 total housing units, 86% are owner-occupied (1,289 units) and 14% are renter-occupied (214 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in St. Joseph shows an unemployment rate of 0.7%, which is lower than the national rate of 3.7%, indicating a relatively strong job market. The poverty rate stands at 4.3%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in St. Joseph have an average one-way commute time of 24.2 minutes.
Education & Demographics
37.1% of St. Joseph residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This is in line with national trends in educational attainment. The community's demographic composition includes 0.0% White, 0.3% Hispanic or Latino, 0.3% Black or African American, and 0.9% Asian residents, with 2.2% of the population being foreign-born.
How St. Joseph Ranks in Illinois
Cost of Living in St. Joseph, IL
Compared to national averages, St. Joseph has a median household income of $114,594 (52% above the national median of $75,149). Home values average $257,400, which is 5% above the national median. Monthly rent at $969 is 17% below the US average of $1,163. Within Illinois, St. Joseph's income is 53% above the state average of $75,072, and home values are 55% above the state median of $165,779.
Why Live in St. Joseph, IL?
St. Joseph offers a strong local economy with a median household income of $114,594, well above the national average, and rent that’s lower than the national average at $969/month, and a strong job market with an unemployment rate of just 0.7%. Additionally, the city features a well-educated community where 37.1% of residents hold a bachelor’s degree or higher, and a low poverty rate of 4.3%, better than the national average, and short commute times averaging just 24.2 minutes.
St. Joseph has a population of 3,833 with a median age of 39.9 years. Compare St. Joseph with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near St. Joseph
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Oregon | 3,821 | $69,632 | $140,100 | Compare |
| Dwight | 3,794 | $67,712 | $143,200 | Compare |
| Red Bud | 3,789 | $68,051 | $170,300 | Compare |
| Rochester | 3,784 | $112,689 | $241,900 | Compare |
| Morrison | 3,781 | $67,580 | $117,300 | Compare |
| Eldorado | 3,762 | $39,766 | $68,600 | Compare |
| Aledo | 3,753 | $62,829 | $140,000 | Compare |
| Dupo | 3,914 | $57,899 | $109,000 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Illinois
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
Compare St. Joseph With Other Cities
Frequently Asked Questions about St. Joseph
What is the population of St. Joseph, IL?
The population of St. Joseph, IL is 3,833 according to the latest US Census Bureau American Community Survey estimates. This makes it a small town in Illinois.
What is the median household income in St. Joseph?
The median household income in St. Joseph, IL is $114,594 per year, which is 52% above the national median of $75,149.
What is the median home value in St. Joseph?
The median home value in St. Joseph, IL is $257,400, which is 5% above the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in St. Joseph?
The median monthly rent in St. Joseph, IL is $969, which is 17% below the national average of $1,163/month.
What is the unemployment rate in St. Joseph?
The unemployment rate in St. Joseph, IL is 0.7%, compared to the national average of 3.7%. This lower-than-average rate suggests a relatively healthy local job market.
Is St. Joseph, IL a good place to live?
St. Joseph offers above-average incomes, a competitive housing market, and a strong job market. With a population of 3,833 and a median age of 39.9, the city appeals to a broad range of residents.
How educated is St. Joseph, IL?
37.1% of residents in St. Joseph aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This above-average educational attainment often reflects a knowledge-based local economy.
What is the cost of living in St. Joseph?
Key cost-of-living indicators for St. Joseph, IL: median home value is $257,400 (5% above national), median rent is $969/month, and median household income is $114,594. The home-value-to-income ratio is 2.2x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in St. Joseph?
The poverty rate in St. Joseph, IL is 4.3%, 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. Joseph, IL?
St. Joseph's population is 0.0% White, 0.3% Hispanic or Latino, 0.3% Black or African American, 0.9% Asian, and 0.1% two or more races. 2.2% of residents are foreign-born.