St. Johns Population

1880–2026

7,791

2026 projection

1.2% since 2020 (increase)

02K4K6K8K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal 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. Johns. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20267,791+110.14%
20257,780+90.12%
20247,771+260.34%
20237,745+80.10%
20227,737+230.30%
20217,714+160.21%
20207,698-480.62%
20197,746-80.10%
20187,754-10.01%
20177,755+80.10%

Showing 10 of 30 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

St. Johns is growing about as fast as Michigan, and slower than Clinton County and the U.S.

  • United States+3.1%
  • Clinton County+1.6%
  • St. Johns+0.7%
  • Michigan+0.6%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

St. Johns Demographics

44.3median age

Median age

Female48.1 yrs
Male37.8 yrs

Adults

5,967
1,706 seniors (65+) · 29% of adults4,261 other adults

Sex

Female 53.3% · 4,113Male 46.7% · 3,602

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 77 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. Johns Income

$68,728median household income

Median household income

$68,728

Half of households earn more, half earn less

Median earnings

$50,718

Typical yearly pay for a worker 25 or older.

Poverty rate

12.5%

About 1 in 8 residents

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

St. Johns Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%53%43%
Never married28%30%26%
Divorced13%10%16%
Widowed9%4%14%
Separated2%3%2%

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