St Joseph County, IN demographics:
population, income, and more

Total population
296,299
-0.1% year-over-year change
Median household income
$74,170/yr
2.2% year-over-year change
Housing units
128,649
-0.1% year-over-year change

St Joseph County population

How many people live in St Joseph County

St Joseph County is home to 296,299 residents, according to the most recent Census data. Gender-wise, 49% of St Joseph County locals are male, and 51% are female.

Total population
296,299
-0.1% year-over-year change
Gender ratio
Male
49%
145,212
Female
51%
151,087
Value Percent YoY change
Male 145,212 49% -0.2%
Female 151,087 51% -0.0%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in St Joseph County is 38, with the population distributed as follows: about 19.1% are children under 15, then 15.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.5% of the population, while another 23.2% fall into the 45 to 64 bracket. Finally, around 17% are 65 or older.

Median age
38
Age breakdown
Under 15
19.1%
15 to 24
15.2%
25 to 44
25.5%
45 to 64
23.2%
Over 65
17%
Value Percent YoY change
Under 15 56,670 19.1% -1.3%
15 to 24 44,959 15.2% 0.9%
25 to 44 75,475 25.5% 0.0%
45 to 64 68,837 23.2% -1.6%
Over 65 50,358 17% 2.2%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In St Joseph County, 92.4% of the population are US-born citizens, while 3.7% have gained naturalized citizenship. At the same time, 3.9% of residents are non-citizens. As for race, 72.1% of locals are Caucasian, 11.6% are African American and 2.6% have Asian roots. Another 0.3% are Indigenous American, 0.1% are Pacific Islanders, while 3.2% identify as another race. There’s also a share of 10.2% that includes residents with two or more races.

Citizenship
U.S.-born citizens
92.4%
Non-U.S.-born citizens
3.7%
Non-citizens
3.9%
Value Percent YoY change
U.S.-born citizens 273,822 92.4% -0.2%
Non-U.S.-born citizens 10,834 3.7% 4.2%
Non-citizens 11,643 3.9% -2.5%
Racial breakdown
White
72.1%
Black or African American
11.6%
American Indian and Alaska Native
0.3%
Asian
2.6%
Native Hawaiian and other Pacific Islander
0.1%
Two or more races
10.2%
Other
3.2%
Value Percent
White 213,562 72.1%
Black or African American 34,369 11.6%
American Indian and Alaska Native 821 0.3%
Asian 7,726 2.6%
Native Hawaiian and other Pacific Islander 243 0.1%
Two or more races 30,187 10.2%
Other 9,391 3.2%

Households in St Joseph County

A peek inside St Joseph County households

St Joseph County has 115,815 households, with an average of 2 members in each. Of these, 60.3% are families, while the remaining 39.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
115,815
-0.1% year-over-year change
Average people per household
2
Non-family households
46,023
Family households
69,792
Value Percent YoY change
Non-family households 46,023 39.7% 0.3%
Family households 69,792 60.3% -0.3%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in St Joseph County

The housing landscape of St Joseph County

St Joseph County's housing consists of 128,649 units, with 74.6% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 3% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 2% of the housing landscape.

Housing units
128,649
-0.1% year-over-year change
Housing types
Value Percent
1 unit, detached 96,018 74.6%
1 unit, attached 3,913 3%
2 units 2,109 1.6%
3 or 4 units 4,358 3.4%
5 to 9 units 7,261 5.6%
10 to 19 units 4,599 3.6%
20 to 49 units 3,798 3%
50 or more units 4,042 3.1%
Mobile home 2,549 2%
Boat, RV, van, etc. 2 0%
Homes built since 2020
1,226
62.0% year-over-year change

The age of buildings in St Joseph County

In St Joseph County, the median construction year is 1968. About 19.1% of homes were built before the 1940s, with another 8.4% going up by 1949. Most development happened in the second half of the 20th century. Then, 9.4% of homes were added from 2000 to 2009, 5.9% between 2010 and 2019, and 1% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 24,563 19.1% 5.7%
Built between 1940 and 1949 10,842 8.4% 1.3%
Built between 1950 and 1959 17,837 13.9% -7.5%
Built between 1960 and 1969 12,898 10% 0.1%
Built between 1970 and 1979 15,742 12.2% -4.7%
Built between 1980 and 1989 11,952 9.3% -4.7%
Built between 1990 and 1999 13,916 10.8% -1.5%
Built between 2000 and 2009 12,045 9.4% 5.2%
Built between 2010 and 2019 7,628 5.9% 4.3%
Built in 2020 or later 1,226 1% 62.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

St Joseph County occupancy rates

Out of the 115,815 occupied housing units in St Joseph County, 70.1% are owner-occupied, while 29.9% are lived in by tenants. Meanwhile, 10% of all homes on the local market sit vacant.

Occupied housing units
115,815
-0.1% year-over-year change
Occupancy breakdown
Renter occupied
34,650
Owner occupied
81,165
Value Percent YoY
change
Renter occupied 34,650 29.9% -1.0%
Owner occupied 81,165 70.1% 0.3%
Unoccupied housing units
10.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

St Joseph County housing costs

Housing costs in St Joseph County come to a median of $983 per month, while tenants specifically pay a median gross rent of $993.

Median housing costs per month
$983/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in St Joseph County
$993/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in St Joseph County

St Joseph County education at a glance

About 38.1% of the population in St Joseph County went to high school, while 22% pursued college studies. Another 7.8% earned an associate degree and 18.3% hold a bachelor’s. Meanwhile, 11.2% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 5,710 2.5% -0.9%
High school diploma 86,698 38.1% -0.1%
College diploma 50,121 22% -2.4%
Associate degree 17,841 7.8% -0.5%
Bachelor's degree 41,605 18.3% 2.1%
Graduate degree 25,399 11.2% 3.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in St Joseph County

How much people earn in St Joseph County

The average annual household income in St Joseph County was $89,467 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.2% change from the previous year. At the same time, the median income stood at $74,170, reflecting a +2.2% shift over the same period.

Average household income in St Joseph County
$89,467/year
4.2% year-over-year change
Median household income in St Joseph County
$74,170/year
2.2% year-over-year change

St Joseph County income by age

In St Joseph County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $82,650. Those with someone between 45 and 64 in charge, often well established professionally, earn $93,118 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $46,375, while those led by someone over 65, many of whom may be retired, have about $49,358 in earnings. Overall, 85.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $46,375 1.7%
25 - 44 $82,650 8.1%
45 - 64 $93,118 10.8%
Over 65 $49,358 4.5%
Above poverty level
241,621
Below poverty level
39,521
Value Percent YoY
change
Above poverty level 241,621 85.9% 0.1%
Below poverty level 39,521 14.1% -0.5%

Employment in St Joseph County

Workforce and job types in St Joseph County

75.3% of the working population are employed in professional or administrative positions, while 24.7% are in hands-on or service-based jobs. Also, 7.4% run their own businesses, 67.3% are employed by private companies, and 10.6% work in the public sector.

Workforce demographics

White collar
106,500
Blue collar
34,888
Value Percent YoY change
White collar 106,500 75.3% 0.7%
Blue collar 34,888 24.7% -1.3%
Employer type
Self employees
7.4%
Private companies
67.3%
Governmental workers
10.6%
Not for profit companies
14.7%
Value Percent YoY change
Self employees 10,503 7.4% 8.9%
Private companies 95,190 67.3% -0.9%
Governmental workers 14,923 10.6% 2.4%
Not for profit companies 20,772 14.7% -0.8%

Transportation in St Joseph County

How people get around in St Joseph County

In St Joseph County, the average commute time is 176 minutes. Commuting methods vary: 93.9% of residents travel by personal vehicle and 3.7% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
176 min
-21.4% year-over-year change
Means of transportation
Value Percent YoY change
Car 115,791 93.9% -0.6%
Taxicab 332 0.3% 16.1%
Bus or trolleybus 1,174 1% -1.5%
Railroad 14 0% 133.3%
Ferryboat 35 0% 6.1%
Motorcycle 201 0.2% 15.5%
Bicycle 1,100 0.9% 2.8%
Walk 4,611 3.7% -4.2%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in St Joseph County by zipcode?

Zipcode Population Number of households Median income Average income
46506 9,994 3,562 $79,386 $96,423
46530 31,598 11,505 $122,129 $164,946
46536 2,964 1,222 $78,448 $94,769
46544 31,077 12,839 $58,829 $81,535
46545 26,606 11,878 $56,865 $75,497
46552 7,047 2,602 $91,341 $106,575
46554 4,405 1,651 $88,068 $109,295
46556 8,344 283 $0 $33,218
46561 13,996 5,112 $91,711 $101,682
46573 3,936 1,323 $85,750 $119,537

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FAQs about St Joseph County demographics 

What is the total population of St Joseph County?

St Joseph County has a total population of 296,299 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.1% compared to a year ago.

What is the gender ratio in St Joseph County?

The gender ratio in St Joseph County is as follows:
  • 49% males (145,212 residents)
  • 51% females (151,087 residents)

What is the median age in St Joseph County?

The median age in St Joseph County is 38.

What is the age distribution of the population in St Joseph County?

The age distribution in St Joseph County is as follows:
  • Under 15: 19.1% (56,670 residents)
  • Ages 15-24: 15.2% (44,959 residents)
  • Ages 25-44: 25.5% (75,475 residents)
  • Ages 45-64: 23.2% (68,837 residents)
  • Over 65: 17% (50,358 residents)

What is the racial and ethnic makeup of St Joseph County?

The racial and ethnic makeup of St Joseph County is as follows:
  • White: 72.1% (213,562 residents)
  • Black or African American: 11.6% (34,369 residents)
  • American Indian and Alaska Native: 0.3% (821 residents)
  • Asian: 2.6% (7,726 residents)
  • Native Hawaiian and Other Pacific Islander: 0.1% (243 residents)
  • Two or More Races: 10.2% (30,187 residents)
  • Other: 3.2% (9,391 residents)

What percentage of the population in St Joseph County are U.S.-born citizens?

U.S.-born citizens represent 92.4% of the population in St Joseph County.

How many housing units are there in St Joseph County?

There are 128,649 housing units in St Joseph County, reflecting a -0.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in St Joseph County and what is the average household size?

St Joseph County has a total of 115,815 households, with an average of 2 people in each.

What is the median household income in St Joseph County?

St Joseph County has a median household income of $74,170, representing a +2.2% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for St Joseph County?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 75.3% (106,500 residents)
  • Blue-collar workers: 24.7% (34,888 residents)

Places of employment:
  • Self-employed: 7.4% (10,503 residents)
  • Private companies: 67.3% (95,190 residents)
  • Governmental workers: 10.6% (14,923 residents)
  • Not-for-profit companies: 14.7% (20,772 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025