St. Marys Population

1880–2026

2,795

2026 projection

1.3% since 2020 (increase)

05001K1.5K2K2.5K3K18801900192019401960198020002020

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. Marys. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20262,795+50.18%
20252,790+100.36%
20242,780+130.47%
20232,767-130.47%
20222,780+100.36%
20212,770+120.44%
20202,758+893.33%
20192,669-80.30%
20182,677-130.48%
20172,690-100.37%

Showing 10 of 30 years.

St. Marys Demographics

26.6median age

Median age

Female28.3 yrs
Male25.8 yrs

Adults

2,091
342 seniors · 16%1,749 other adults

Sex

Female 47.3% · 1,320Male 52.7% · 1,468

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 28 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. Marys Income

$76,771median household income

Median household income

$76,771

Half of households earn more, half earn less

Median earnings

$47,464

Typical yearly pay for a worker 25 or older.

Poverty rate

8.6%

About 1 in 12 residents

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

St. Marys Marital Status

51% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married51%57%46%
Never married39%38%40%
Divorced5%4%5%
Widowed4%1%6%
Separated1%0%3%

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