The Town FilesThornbury, Pennsylvania
Township in Delaware County · population 6,904 (2020 Census)
- Median home
- $770,000
- Household income
- $191,543
- Jan low / Jul high
- 20° / 86°
- Snow a year
- 31 in
- Tornadoes ≤10 mi since 1950
- 13
- Median age
- 40.4
Thornbury is a township of 6,904 people in Delaware County, Pennsylvania. The median home is worth $770,000, above the typical Pennsylvania town ($214,250). It ranks more upscale than 99% of Pennsylvania towns, better for families than 94% of Pennsylvania towns, better for young professionals than 89% of Pennsylvania towns.
How Thornbury 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 Thornbury is worth $770,000, above the typical Pennsylvania town ($214,250). Homes cost about 4.0 times the median household income of $191,543, which is more affordable than 8% of Pennsylvania towns. Median rent is $2,358 a month. 92.7% of households own their home.
| Housing | Thornbury | Typical Pennsylvania town |
|---|---|---|
| Median home value | $770,000 | $214,250 |
| Median rent | $2,358 | $996 |
| Median household income | $191,543 | $75,278 |
| Home value ÷ income | 4.0× | 2.8× |
| Homeownership | 92.7% | 81.5% |
| Median year built | 1997 | 1971 |
| Seasonal / vacation homes | 1.5% | — |
Who lives in Thornbury
| People | Thornbury | Typical Pennsylvania town |
|---|---|---|
| Median age | 40.4 | 44.2 |
| Age 65 and over | 17.2% | 21.1% |
| Under 18 | 27.5% | — |
| Bachelor's degree or higher | 69.2% | 23.8% |
| Below the poverty line | 5.3% | 8.5% |
| Veterans | 1.5% | — |
| Born outside the U.S. | 6.5% | — |
| Work from home | 27.0% | 10.6% |
| Average commute | 29.6 min | 25.9 min |
| Homes with broadband | 98.9% | 89.0% |
Weather in Thornbury
July highs average 86.2°F and January lows 19.7°F. About 50.9 inches of rain and melted snow fall a year, with 30.5 inches of snow (typical Pennsylvania town: 31.8 in). Expect about 27 days a year at 90°F or hotter and 131 nights at or below freezing.
Tornadoes, storms and disasters
13 tornadoes have passed within 10 miles of Thornbury since 1950, compared with 10 for the typical Pennsylvania town. 4 rated (E)F2 or stronger. The strongest, an F3, struck on March 22, 1955 about 5.9 miles from the town center and killed 1. Tornadoes within 10 miles have caused 1 deaths and 7 injuries since 1950. The most recent was on August 7, 2020.
Hail of 1 inch or larger has been reported within 10 miles 41 times; the largest was 2.50 inches on May 22, 2014.
Severe weather in Delaware County since 1996
Delaware County has been included in 24 federal disaster or emergency declarations since 1953, most often for flood, drought, hurricane.
| Declared | Incident | Declaration |
|---|---|---|
| September 10, 2021 | Hurricane | DR-4618: Remnants Of Hurricane Ida |
| March 30, 2020 | Biological | DR-4506: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3441: Covid-19 |
| February 6, 2014 | Severe Ice Storm | EM-3367: Severe Winter Storm |
| October 29, 2012 | Hurricane | EM-3356: Hurricane Sandy |
Jobs and pay in Delaware County
Delaware County had 218,536 jobs in 2024, paying an average of $73,172 a year. Unemployment was 3.2% in 2023; in Thornbury itself the ACS puts it at 7%.
Towns near Thornbury
- Thornbury, PA2.1 mi · 3,177 people · home $669,500
- Westtown, PA2.4 mi · 11,154 people · home $616,200
- Concord, PA3.1 mi · 18,295 people · home $583,800
- Chester Heights, PA3.2 mi · 2,897 people · home $343,200
- Edgmont, PA3.6 mi · 4,283 people · home $614,200
- Lima, PA4.1 mi · 2,745 people · home $396,300
- Chadds Ford, PA4.6 mi · 3,972 people · home $753,100
- Birmingham, PA4.6 mi · 4,082 people · home $757,900
Thornbury questions
Is Thornbury, Pennsylvania a good place to retire?
On The Town Files lifestyle rankings, Thornbury scores better for retirees than 31% of Pennsylvania towns and quieter than 21%. 17.2% of residents are 65 or older (median age 40.4).
How much does a house cost in Thornbury?
The median owner-occupied home in Thornbury is valued at $770,000 (Census ACS 2020–2024), against a median household income of $191,543, so homes cost about 4.0 times income. Median rent is $2,358 a month.
What is the weather like in Thornbury?
July highs average 86.2°F and January lows 19.7°F (NOAA 1991–2020 normals). It gets about 50.9 inches of precipitation a year and 30.5 inches of snow.
Does Thornbury get tornadoes?
13 tornadoes have passed within 10 miles of Thornbury since 1950 (NOAA Storm Events); the strongest was a F3 on March 22, 1955. 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)