What are the schools like in St. Marys, PA?

St. Marys is served primarily by Saint Marys Area SD. The district operates 2 elementary schools, 1 middle schools, and 1 high schools with a student-to-teacher ratio of 13.6:1.

What is the median household income in St. Marys?

The median household income in St. Marys, PA is $61,364 according to the most recent US Census American Community Survey 5-year estimates. The unemployment rate is 9.1%.

What is the weather like in St. Marys, PA?

St. Marys has an average high temperature of 30.5°F in January and 78.5°F in July. Annual precipitation averages 45.0 inches and annual snowfall averages 66.0 inches.

St. Marys, PA Cost of Living, Crime & Is It a Good Place to Live? (2026)

Q: Is St. Marys, PA affordable or expensive?

St. Marys's cost of living index is 92, where 100 represents the national average. This means St. Marys is 8% less expensive than the average US city. The median home value is $140,100 and the median rent is $725 per month.

Q: What is the crime rate in St. Marys, PA?

Crime rate data for St. Marys is not currently available from the FBI's reported data.

Is St. Marys, PA a Good Place to Live?

St. Marys is a small city of 12,691 in Pennsylvania, with a median household income of $61,364 and a 9.1% unemployment rate. Its cost of living index is 92 (US average = 100), which is 8% below the national average.

Strengths: St. Marys stands out for an affordable cost of living, below-average home prices, solid school ratings (B), short average commutes.

Trade-offs: Potential downsides include an elevated unemployment rate. Whether St. Marys is right for you depends on your priorities — the full breakdown is below.

All St. Marys city data on this page comes from official government sources — the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.

Cost of Living

Index: 92.3

St. Marys's overall cost of living index is 92.3, where 100 represents the US national average. Living in St. Marys costs roughly 8% less than the average American city.

Metric	St. Marys, PA	National Avg
Median Home Value	$140,100	$244,900
Median Monthly Rent	$725	$1,163
Homeownership Rate	76.1%	65.9%
Median Household Income	$61,364	$74,755

Crime & Safety

Crime data for St. Marys is not currently available from the FBI's Uniform Crime Reporting program. Not all local agencies report to the UCR each year.

Schools & Education

St. Marys is served primarily by Saint Marys Area SD. The student-to-teacher ratio is 13.6:1 (better than the national average of ~16:1).

Metric	St. Marys, PA	National Avg
School District	Saint Marys Area SD	—
Elementary Schools	2	—
Middle Schools	1	—
High Schools	1	—
Student/Teacher Ratio	13.6:1	16:1
Bachelor's Degree or Higher	19.6%	35.4%
High School Diploma or Higher	93.8%	91.1%

Weather & Climate

St. Marys sees average highs of 30.5°F in January and 78.5°F in July, with 45.0 inches of annual precipitation and 66.0 inches of snow per year.

Metric	St. Marys, PA
Average High — January	30.5°F
Average High — July	78.5°F
Annual Precipitation	45.0"
Annual Snowfall	66.0"

Demographics

Metric	St. Marys, PA	National Avg
Population	12,691	—
Median Age	50.5	38.9
Unemployment Rate	9.1%	3.7%
Avg Commute Time	12.5 min	26 min
White (non-Hispanic)	94.6%	59.3%
Black or African American	1.3%	13.6%
Hispanic or Latino	3.3%	18.9%
Asian	0.4%	6.3%
Under 18	17.3%	22.2%
65 and over	25.9%	16.8%

Nearby Cities

Kersey, PA 8 mi Johnsonburg, PA 9 mi Ridgway, PA 11 mi Byrnedale, PA 11 mi Wilcox, PA 12 mi

ZIP Codes in St. Marys

St. Marys, PA is covered by 1 ZIP code:

15857

St. Marys vs Other Cities

St. Marys, PA vs Kersey, PA St. Marys, PA vs Johnsonburg, PA St. Marys, PA vs Ridgway, PA St. Marys, PA vs Byrnedale, PA St. Marys, PA vs Wilcox, PA

Frequently Asked Questions

Is St. Marys, PA affordable or expensive?

St. Marys's cost of living index is 92, where 100 is the national average. That makes St. Marys roughly 8% less expensive than a typical US city — a meaningful affordability advantage. The median home price is $140,100 and median rent is $725/month.

What is the crime rate in St. Marys, PA?

Crime data for St. Marys is not available in the current FBI UCR reporting year. Not all jurisdictions submit data annually.

What are the schools like in St. Marys?

Public schools in St. Marys are operated by Saint Marys Area SD. The district has 2 elementary, 1 middle, and 1 high schools. The student-to-teacher ratio is 13.6:1. 19.6% of adults 25+ hold a bachelor's degree or higher.

Is St. Marys, PA a good place to live?

St. Marys, PA has a population of 12,691, a median household income of $61,364, and an unemployment rate of 9.1%. It offers below-average costs of living, which stretches take-home pay further than in most American cities. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.

What is the weather like in St. Marys?

St. Marys averages 30.5°F in January and 78.5°F in July. Annual rainfall is 45.0 inches with about 66.0 inches of snow per year. Based on NOAA 30-year climate normals (1991–2020).

What ZIP codes are in St. Marys?

St. Marys, PA is covered by 1 ZIP code: 15857.

What is the population of St. Marys?

The population of St. Marys, Pennsylvania is 12,691 with a median age of 50.5. Source: US Census ACS 5-Year Estimates.

What are the pros and cons of living in St. Marys?

Key numbers for living in St. Marys: cost of living index 92 (100 = US average), median home $140,100, median household income $61,364, schools rated B. Whether these are benefits or drawbacks depends on where you're coming from — compare St. Marys side by side with your current city to see the trade-offs.