The Town FilesCobb Island, Maryland
Community in Charles County · population 929 (2020 Census)
- Median home
- $275,000
- Jan low / Jul high
- 25° / 85°
- Snow a year
- 13 in
- Tornadoes ≤10 mi since 1950
- 16
- Median age
- 50.0
Cobb Island is a community of 929 people in Charles County, Maryland. The median home is worth $275,000, below the typical Maryland town ($412,300). It ranks better for a vacation home than 98% of Maryland towns, better for families than 89% of Maryland towns, quieter than 83% of Maryland towns.
How Cobb Island ranks
Percentile among Maryland towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Maryland towns.
Homes and cost of living
The median home in Cobb Island is worth $275,000, below the typical Maryland town ($412,300). 100.0% of households own their home.
| Housing | Cobb Island | Typical Maryland town |
|---|---|---|
| Median home value | $275,000 | $412,300 |
| Median rent | — | $1,748 |
| Median household income | — | $108,677 |
| Home value ÷ income | —× | 3.8× |
| Homeownership | 100.0% | 77.3% |
| Median year built | 1944 | 1980 |
| Seasonal / vacation homes | 22.0% | — |
Who lives in Cobb Island
| People | Cobb Island | Typical Maryland town |
|---|---|---|
| Median age | 50.0 | 40.2 |
| Age 65 and over | 4.4% | 16.4% |
| Under 18 | 17.2% | — |
| Bachelor's degree or higher | 9.1% | 39.4% |
| Below the poverty line | 2.3% | 7.1% |
| Veterans | 9.6% | — |
| Born outside the U.S. | 2.2% | — |
| Work from home | 5.8% | 17.4% |
| Average commute | 51.0 min | 31.4 min |
| Homes with broadband | 100.0% | 94.3% |
Weather in Cobb Island
July highs average 85.3°F and January lows 24.8°F. About 48.1 inches of rain and melted snow fall a year, with 13.3 inches of snow (typical Maryland town: 15.9 in). Expect about 16 days a year at 90°F or hotter and 98 nights at or below freezing.
Tornadoes, storms and disasters
16 tornadoes have passed within 10 miles of Cobb Island since 1950, compared with 18 for the typical Maryland town. The strongest, an EF1, struck on July 1, 2025 about 9.6 miles from the town center. The most recent was on July 1, 2025.
Hail of 1 inch or larger has been reported within 10 miles 17 times; the largest was 2.00 inches on June 26, 1988.
Severe weather in Charles County since 1996
Charles County has been included in 24 federal disaster or emergency declarations since 1953, most often for flood, tornado, hurricane.
| Declared | Incident | Declaration |
|---|---|---|
| January 24, 2026 | Winter Storm | EM-3634: Severe Winter Storm |
| March 26, 2020 | Biological | DR-4491: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3430: Covid-19 |
| March 4, 2016 | Snowstorm | DR-4261: Severe Winter Storm And Snowstorm |
| November 20, 2012 | Hurricane | DR-4091: Hurricane Sandy |
Jobs and pay in Charles County
Charles County had 43,087 jobs in 2024, paying an average of $60,436 a year. Unemployment was 2.2% in 2023; in Cobb Island itself the ACS puts it at 0%.
Towns near Cobb Island
- Colonial Beach, VA7.9 mi · 3,908 people · home $268,200
- Dahlgren Center, VA10.9 mi · 724 people · home —
- Leonardtown, MD11.7 mi · 4,563 people · home $575,300
- Mechanicsville, MD12.6 mi · 1,673 people · home $416,100
- Dahlgren, VA12.9 mi · 2,946 people · home $423,300
- Charlotte Hall, MD14.6 mi · 1,388 people · home $367,800
- Wildewood, MD16.6 mi · 7,821 people · home $383,400
- Callaway, MD17.5 mi · 1,779 people · home $364,700
Cobb Island questions
Is Cobb Island, Maryland a good place to retire?
On The Town Files lifestyle rankings, Cobb Island scores better for retirees than 58% of Maryland towns and quieter than 83%. 4.4% of residents are 65 or older (median age 50.0).
How much does a house cost in Cobb Island?
The median owner-occupied home in Cobb Island is valued at $275,000 (Census ACS 2020–2024), against a median household income of —. Median rent is — a month.
What is the weather like in Cobb Island?
July highs average 85.3°F and January lows 24.8°F (NOAA 1991–2020 normals). It gets about 48.1 inches of precipitation a year and 13.3 inches of snow.
Does Cobb Island get tornadoes?
16 tornadoes have passed within 10 miles of Cobb Island since 1950 (NOAA Storm Events); the strongest was an EF1 on July 1, 2025. The typical Maryland town has had 18.
- 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)