The Town FilesSeneca, Michigan
Township in Lenawee County · population 1,155 (2020 Census)
- Median home
- $161,800
- Household income
- $63,365
- Jan low / Jul high
- 15° / 86°
- Snow a year
- 32 in
- Tornadoes ≤10 mi since 1950
- 6
- Median age
- 49.6
Seneca is a township of 1,155 people in Lenawee County, Michigan. The median home is worth $161,800, below the typical Michigan town ($193,900). It ranks easier by car than 88% of Michigan towns, better for first-time buyers than 74% of Michigan towns, quieter than 71% of Michigan towns.
How Seneca ranks
Percentile among Michigan towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Michigan towns.
Homes and cost of living
The median home in Seneca is worth $161,800, below the typical Michigan town ($193,900). Homes cost about 2.6 times the median household income of $63,365, which is more affordable than 68% of Michigan towns. 95.1% of households own their home.
| Housing | Seneca | Typical Michigan town |
|---|---|---|
| Median home value | $161,800 | $193,900 |
| Median rent | — | $955 |
| Median household income | $63,365 | $69,792 |
| Home value ÷ income | 2.6× | 2.8× |
| Homeownership | 95.1% | 86.8% |
| Median year built | 1961 | 1975 |
| Seasonal / vacation homes | 1.6% | — |
Who lives in Seneca
| People | Seneca | Typical Michigan town |
|---|---|---|
| Median age | 49.6 | 43.7 |
| Age 65 and over | 26.2% | 20.7% |
| Under 18 | 19.7% | — |
| Bachelor's degree or higher | 11.6% | 21.5% |
| Below the poverty line | 2.0% | 10.4% |
| Veterans | 11.6% | — |
| Born outside the U.S. | 0.9% | — |
| Work from home | 2.3% | 9.1% |
| Average commute | 33.7 min | 25.6 min |
| Homes with broadband | 77.3% | 88.8% |
Weather in Seneca
July highs average 85.5°F and January lows 14.7°F. About 38.1 inches of rain and melted snow fall a year, with 32.0 inches of snow (typical Michigan town: 52.1 in). Expect about 20 days a year at 90°F or hotter and 148 nights at or below freezing.
Tornadoes, storms and disasters
6 tornadoes have passed within 10 miles of Seneca since 1950, compared with 10 for the typical Michigan town. 2 rated (E)F2 or stronger. The strongest, an F2, struck on April 3, 1974 about 7.1 miles from the town center. The most recent was on July 4, 1992.
Hail of 1 inch or larger has been reported within 10 miles 23 times; the largest was 2.75 inches on June 19, 2021.
Severe weather in Lenawee County since 1996
Lenawee County has been included in 6 federal disaster or emergency declarations since 1953, most often for tornado, hurricane, snowstorm.
| Declared | Incident | Declaration |
|---|---|---|
| March 27, 2020 | Biological | DR-4494: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3455: Covid-19 |
| September 7, 2005 | Hurricane | EM-3225: Hurricane Katrina Evacuation |
| January 27, 1999 | Snowstorm | EM-3137: Mi - Severe Weather 1/2 /99 |
| January 27, 1978 | Snowstorm | EM-3057: Blizzards & Snowstorms |
Jobs and pay in Lenawee County
Lenawee County had 25,796 jobs in 2024, paying an average of $53,357 a year. Unemployment was 4.2% in 2023; in Seneca itself the ACS puts it at 2.4%.
Towns near Seneca
- Morenci, MI3.7 mi · 2,270 people · home $104,300
- Fairfield, MI5.6 mi · 1,661 people · home $157,000
- Lyons, OH6.5 mi · 602 people · home $158,300
- Medina, MI6.6 mi · 1,115 people · home $165,000
- Dover, MI6.6 mi · 1,662 people · home $190,000
- Madison, MI8.0 mi · 8,439 people · home $174,700
- Hudson, MI9.1 mi · 1,499 people · home $192,000
- Fayette, OH10.3 mi · 1,305 people · home $94,400
Seneca questions
Is Seneca, Michigan a good place to retire?
On The Town Files lifestyle rankings, Seneca scores better for retirees than 52% of Michigan towns and quieter than 71%. 26.2% of residents are 65 or older (median age 49.6).
How much does a house cost in Seneca?
The median owner-occupied home in Seneca is valued at $161,800 (Census ACS 2020–2024), against a median household income of $63,365, so homes cost about 2.6 times income. Median rent is — a month.
What is the weather like in Seneca?
July highs average 85.5°F and January lows 14.7°F (NOAA 1991–2020 normals). It gets about 38.1 inches of precipitation a year and 32.0 inches of snow.
Does Seneca get tornadoes?
6 tornadoes have passed within 10 miles of Seneca since 1950 (NOAA Storm Events); the strongest was a F2 on April 3, 1974. The typical Michigan 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)