South Mount Vernon, Ohio
Community in Knox County · population 714 (2020 Census)
- Household income
- $59,018
- Jan low / Jul high
- 17° / 83°
- Snow a year
- 31 in
- Tornadoes ≤10 mi since 1950
- 10
- Median age
- 27.3
South Mount Vernon is a community of 714 people in Knox County, Ohio. It ranks more of a college town than 92% of Ohio towns, better transit than 92% of Ohio towns.
How South Mount Vernon ranks
Percentile among Ohio towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Ohio towns.
Homes and cost of living
Median rent is $1,109 a month. 31.0% of households own their home.
| Housing | South Mount Vernon | Typical Ohio town |
|---|---|---|
| Median home value | — | $171,100 |
| Median rent | $1,109 | $914 |
| Median household income | $59,018 | $67,019 |
| Home value ÷ income | —× | 2.6× |
| Homeownership | 31.0% | 71.7% |
| Median year built | 1938 | 1965 |
| Seasonal / vacation homes | 0.0% | — |
Who lives in South Mount Vernon
| People | South Mount Vernon | Typical Ohio town |
|---|---|---|
| Median age | 27.3 | 40.6 |
| Age 65 and over | 7.1% | 19.1% |
| Under 18 | 23.8% | — |
| Bachelor's degree or higher | 14.0% | 21.3% |
| Below the poverty line | 33.1% | 10.3% |
| Veterans | 8.0% | — |
| Born outside the U.S. | 0.0% | — |
| Work from home | 0.0% | 8.6% |
| Average commute | 35.7 min | 23.3 min |
| Homes with broadband | 85.5% | 90.9% |
Weather in South Mount Vernon
July highs average 83.0°F and January lows 16.9°F. About 44.2 inches of rain and melted snow fall a year, with 30.9 inches of snow (typical Ohio town: 23.8 in). Expect about 9 days a year at 90°F or hotter and 128 nights at or below freezing.
Tornadoes, storms and disasters
10 tornadoes have passed within 10 miles of South Mount Vernon since 1950, compared with 16 for the typical Ohio town. 4 rated (E)F2 or stronger. The strongest, an F2, struck on September 20, 2000 about 8.1 miles from the town center. The most recent was on March 26, 2026.
Hail of 1 inch or larger has been reported within 10 miles 25 times; the largest was 1.75 inches on August 9, 2012.
Severe weather in Knox County since 1996
Knox County has been included in 13 federal disaster or emergency declarations since 1953, most often for other, hurricane, snowstorm.
| Declared | Incident | Declaration |
|---|---|---|
| March 31, 2020 | Biological | DR-4507: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3457: Covid-19 |
| August 20, 2012 | Severe Storm | DR-4077: Severe Storms And Straight-Line Winds |
| June 30, 2012 | Severe Storm | EM-3346: Severe Storms |
| October 24, 2008 | Severe Storm | DR-1805: Severe Wind Storm Associated With Tropical Depression Ike |
Jobs and pay in Knox County
Knox County had 20,571 jobs in 2024, paying an average of $55,637 a year. Unemployment was 3.3% in 2023; in South Mount Vernon itself the ACS puts it at 13.9%.
Towns near South Mount Vernon
- Mount Vernon, OH1.4 mi · 16,956 people · home $174,000
- Gambier, OH5.7 mi · 2,213 people · home $309,400
- Fredericktown, OH7.1 mi · 2,648 people · home $171,200
- Apple Valley, OH8.9 mi · 5,352 people · home $287,700
- Utica, OH10.5 mi · 2,064 people · home $150,500
- Centerburg, OH11.7 mi · 1,690 people · home $246,900
- Danville, OH13.4 mi · 1,019 people · home $138,600
- Butler, OH15.0 mi · 941 people · home $180,700
South Mount Vernon questions
Is South Mount Vernon, Ohio a good place to retire?
On The Town Files lifestyle rankings, South Mount Vernon scores better for retirees than 43% of Ohio towns and quieter than 33%. 7.1% of residents are 65 or older (median age 27.3).
What is the weather like in South Mount Vernon?
July highs average 83.0°F and January lows 16.9°F (NOAA 1991–2020 normals). It gets about 44.2 inches of precipitation a year and 30.9 inches of snow.
Does South Mount Vernon get tornadoes?
10 tornadoes have passed within 10 miles of South Mount Vernon since 1950 (NOAA Storm Events); the strongest was a F2 on September 20, 2000. The typical Ohio town has had 16.
- 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)