St. Joseph County Population

1830–2026

272.79K

2026 projection

0% since 2020 (increase)

050K100K150K200K250K300K1850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for St. Joseph County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026272,786-750.03%
2025272,861-750.03%
2024272,936-1830.07%
2023273,119+6410.24%
2022272,478+2430.09%
2021272,235-4510.17%
2020272,686+9910.36%
2019271,695+7340.27%
2018270,961+7420.27%
2017270,219+1770.07%

Showing 10 of 34 years.

St. Joseph County Demographics

36.7median age

Median age

Female37.7 yrs
Male35.6 yrs

Adults

209,737
46,023 seniors (65+) · 22% of adults163,714 other adults

Sex

Female 51.2% · 139,662Male 48.8% · 133,378

Population by age

MaleFemale85+ years, male: 1,64985+ years, female: 3,65580–84 years, male: 2,25480–84 years, female: 2,49775–79 years, male: 3,58375–79 years, female: 4,82270–74 years, male: 5,40270–74 years, female: 5,92765–69 years, male: 7,60465–69 years, female: 8,63060–64 years, male: 7,68060–64 years, female: 8,37655–59 years, male: 7,88155–59 years, female: 8,09450–54 years, male: 7,66550–54 years, female: 8,00445–49 years, male: 7,37645–49 years, female: 7,68740–44 years, male: 7,99640–44 years, female: 7,72735–39 years, male: 8,76535–39 years, female: 9,08530–34 years, male: 8,99430–34 years, female: 9,03225–29 years, male: 9,14525–29 years, female: 9,22120–24 years, male: 10,30620–24 years, female: 10,92915–19 years, male: 10,47115–19 years, female: 10,43710–14 years, male: 8,91410–14 years, female: 8,8985–9 years, male: 9,1865–9 years, female: 8,5140–4 years, male: 8,5070–4 years, female: 8,12785+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45K5K10K10K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 2,730 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

St. Joseph County Income

$66,868median household income

Median household income

$66,868

Half of households earn more, half earn less

Median earnings

$47,363

Typical yearly pay for a worker 25 or older.

Poverty rate

14.2%

About 1 in 7 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

St. Joseph County Marital Status

44% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married44%45%42%
Never married38%41%35%
Divorced12%11%13%
Widowed6%3%8%
Separated1%1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year