The Town FilesSt. Clair, Pennsylvania
Township in Westmoreland County · population 1,340 (2020 Census)
- Median home
- $140,700
- Household income
- $55,000
- Jan low / Jul high
- 19° / 79°
- Snow a year
- 85 in
- Tornadoes ≤10 mi since 1950
- 10
- Median age
- 47.8
St. Clair is a township of 1,340 people in Westmoreland County, Pennsylvania. The median home is worth $140,700, below the typical Pennsylvania town ($214,250). It ranks better for a vacation home than 90% of Pennsylvania towns.
How St. Clair ranks
Percentile among Pennsylvania towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Pennsylvania towns.
Homes and cost of living
The median home in St. Clair is worth $140,700, below the typical Pennsylvania town ($214,250). Homes cost about 2.6 times the median household income of $55,000, which is more affordable than 64% of Pennsylvania towns. Median rent is $758 a month. 78.6% of households own their home.
| Housing | St. Clair | Typical Pennsylvania town |
|---|---|---|
| Median home value | $140,700 | $214,250 |
| Median rent | $758 | $996 |
| Median household income | $55,000 | $75,278 |
| Home value ÷ income | 2.6× | 2.8× |
| Homeownership | 78.6% | 81.5% |
| Median year built | 1971 | 1971 |
| Seasonal / vacation homes | 3.8% | — |
Who lives in St. Clair
| People | St. Clair | Typical Pennsylvania town |
|---|---|---|
| Median age | 47.8 | 44.2 |
| Age 65 and over | 21.4% | 21.1% |
| Under 18 | 21.6% | — |
| Bachelor's degree or higher | 17.4% | 23.8% |
| Below the poverty line | 16.6% | 8.5% |
| Veterans | 7.1% | — |
| Born outside the U.S. | 0.0% | — |
| Work from home | 5.8% | 10.6% |
| Average commute | 31.7 min | 25.9 min |
| Homes with broadband | 84.9% | 89.0% |
Weather in St. Clair
July highs average 78.6°F and January lows 19.2°F. About 41.3 inches of rain and melted snow fall a year, with 85.2 inches of snow (typical Pennsylvania town: 31.8 in). Expect about 0 days a year at 90°F or hotter and 127 nights at or below freezing.
Tornadoes, storms and disasters
10 tornadoes have passed within 10 miles of St. Clair since 1950, compared with 10 for the typical Pennsylvania town. 2 rated (E)F2 or stronger. The strongest, an EF2, struck on July 18, 2026 about 8.1 miles from the town center. The most recent was on July 18, 2026.
Hail of 1 inch or larger has been reported within 10 miles 16 times; the largest was 2.50 inches on May 17, 1960.
Severe weather in Westmoreland County since 1996
Westmoreland County has been included in 20 federal disaster or emergency declarations since 1953, most often for flood, tornado, hurricane.
| Declared | Incident | Declaration |
|---|---|---|
| March 30, 2020 | Biological | DR-4506: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3441: Covid-19 |
| March 23, 2016 | Snowstorm | DR-4267: Severe Winter Storm And Snowstorm |
| October 29, 2012 | Hurricane | EM-3356: Hurricane Sandy |
| April 16, 2010 | Snowstorm | DR-1898: Severe Winter Storms And Snowstorms |
Jobs and pay in Westmoreland County
Westmoreland County had 129,350 jobs in 2024, paying an average of $56,519 a year. Unemployment was 3.5% in 2023; in St. Clair itself the ACS puts it at 10.7%.
Towns near St. Clair
- New Florence, PA2.9 mi · 671 people · home $117,400
- Lower Yoder, PA3.0 mi · 2,388 people · home $97,800
- Westwood, PA4.4 mi · 1,692 people · home $99,800
- Upper Yoder, PA4.4 mi · 5,147 people · home $152,800
- Westmont, PA4.8 mi · 4,982 people · home $180,800
- Brownstown, PA5.2 mi · 696 people · home $70,900
- West Taylor, PA5.6 mi · 729 people · home $89,700
- Elim, PA6.0 mi · 3,364 people · home $113,000
St. Clair questions
Is St. Clair, Pennsylvania a good place to retire?
On The Town Files lifestyle rankings, St. Clair scores better for retirees than 40% of Pennsylvania towns and quieter than 62%. 21.4% of residents are 65 or older (median age 47.8).
How much does a house cost in St. Clair?
The median owner-occupied home in St. Clair is valued at $140,700 (Census ACS 2020–2024), against a median household income of $55,000, so homes cost about 2.6 times income. Median rent is $758 a month.
What is the weather like in St. Clair?
July highs average 78.6°F and January lows 19.2°F (NOAA 1991–2020 normals). It gets about 41.3 inches of precipitation a year and 85.2 inches of snow.
Does St. Clair get tornadoes?
10 tornadoes have passed within 10 miles of St. Clair since 1950 (NOAA Storm Events); the strongest was an EF2 on July 18, 2026. The typical Pennsylvania town has had 10.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)