How St. Joseph County Compares

St. Joseph County

39.9 years

Michigan Average

39.9 years

Rank #72 of 83 in state

National

38.9 years

2.6% above

National Distribution

Where St. Joseph County falls among all 3,222 U.S. counties for median age.

21.4 years 86.2 years

■ St. Joseph County: 39.9 years

Ranking Context

Rank	County	Value
#2,146	Saline County, KS	39.9 years
#2,147	Oldham County, KY	39.9 years
#2,148	Caroline County, MD	39.9 years
#2,149	St. Joseph County, MI	39.9 years
#2,150	Cole County, MO	39.9 years
#2,151	Otsego County, NY	39.9 years
#2,152	Greene County, NC	39.9 years

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Median Age in St. Joseph County, Michigan

St. Joseph County, Michigan has a median age of 39.9 years, which ranks #2,149 of 3,222 out of 3,222 counties nationwide. This is 2.6% above the national value of 38.9 years.

Within Michigan, St. Joseph County ranks #72 of 83 out of 83 counties. This places it in the 33th percentile nationally.

The median age of the total population. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.