Knollwood, Texas
City in Grayson County · population 764 (2020 Census)
- Household income
- $55,819
- Jan low / Jul high
- 34° / 93°
- Snow a year
- 2 in
- Tornadoes ≤10 mi since 1950
- 33
- Median age
- 31.8
Knollwood is a city of 764 people in Grayson County, Texas. It ranks better transit than 95% of Texas towns, better for retirees than 94% of Texas towns, better for young professionals than 94% of Texas towns.
How Knollwood ranks
Percentile among Texas towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Texas towns.
Homes and cost of living
Median rent is $1,316 a month. 31.2% of households own their home.
| Housing | Knollwood | Typical Texas town |
|---|---|---|
| Median home value | — | $184,100 |
| Median rent | $1,316 | $1,086 |
| Median household income | $55,819 | $65,842 |
| Home value ÷ income | —× | 2.9× |
| Homeownership | 31.2% | 72.9% |
| Median year built | 2007 | 1985 |
| Seasonal / vacation homes | 0.0% | — |
Who lives in Knollwood
| People | Knollwood | Typical Texas town |
|---|---|---|
| Median age | 31.8 | 37.1 |
| Age 65 and over | 19.7% | 15.6% |
| Under 18 | 15.3% | — |
| Bachelor's degree or higher | 20.4% | 18.9% |
| Below the poverty line | 9.4% | 13.1% |
| Veterans | 14.3% | — |
| Born outside the U.S. | 11.0% | — |
| Work from home | 9.7% | 7.8% |
| Average commute | 20.8 min | 26.1 min |
| Homes with broadband | 85.8% | 89.2% |
Weather in Knollwood
July highs average 92.5°F and January lows 33.9°F. About 44.3 inches of rain and melted snow fall a year, with 1.9 inches of snow (typical Texas town: 0.2 in). Expect about 73 days a year at 90°F or hotter and 43 nights at or below freezing.
Tornadoes, storms and disasters
33 tornadoes have passed within 10 miles of Knollwood since 1950, compared with 21 for the typical Texas town. 11 rated (E)F2 or stronger. The strongest, an F3, struck on March 10, 1973 about 8.5 miles from the town center. Tornadoes within 10 miles have caused 1 deaths and 41 injuries since 1950. The most recent was on June 8, 2025.
Hail of 1 inch or larger has been reported within 10 miles 142 times; the largest was 4.50 inches on April 21, 1996.
Severe weather in Grayson County since 1996
Grayson County has been included in 21 federal disaster or emergency declarations since 1953, most often for fire, flood, other.
| Declared | Incident | Declaration |
|---|---|---|
| February 19, 2021 | Severe Ice Storm | DR-4586: Severe Winter Storms |
| February 14, 2021 | Severe Ice Storm | EM-3554: Severe Winter Storm |
| March 25, 2020 | Biological | DR-4485: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3458: Covid-19 |
| May 29, 2015 | Severe Storm | DR-4223: Severe Storms, Tornadoes, Straight-Line Winds And Flooding |
Jobs and pay in Grayson County
Grayson County had 52,026 jobs in 2024, paying an average of $58,282 a year. Unemployment was 3.7% in 2023; in Knollwood itself the ACS puts it at 6.9%.
Towns near Knollwood
- Sherman, TX4.2 mi · 43,645 people · home $243,500
- Denison, TX5.8 mi · 24,479 people · home $180,900
- Pottsboro, TX6.4 mi · 2,488 people · home $280,000
- Southmayd, TX6.9 mi · 978 people · home $164,000
- Preston, TX12.4 mi · 2,101 people · home $184,000
- Howe, TX12.6 mi · 3,571 people · home $201,300
- Bells, TX12.9 mi · 1,521 people · home $232,400
- Colbert, OK13.3 mi · 1,027 people · home $104,300
Knollwood questions
Is Knollwood, Texas a good place to retire?
On The Town Files lifestyle rankings, Knollwood scores better for retirees than 94% of Texas towns and quieter than 35%. 19.7% of residents are 65 or older (median age 31.8).
What is the weather like in Knollwood?
July highs average 92.5°F and January lows 33.9°F (NOAA 1991–2020 normals). It gets about 44.3 inches of precipitation a year and 1.9 inches of snow.
Does Knollwood get tornadoes?
33 tornadoes have passed within 10 miles of Knollwood since 1950 (NOAA Storm Events); the strongest was a F3 on March 10, 1973. The typical Texas town has had 21.
- 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)