Living in Seneca, Illinois
Cost of living, income, home prices, rent and demographics of Seneca · Census data 2020–2024
Seneca has 2,450 residents with a median age of 35.5. The median household income is $86,830 (4% higher than the Illinois median), the median home value is $227,500, the median rent is $1,149/month.
Seneca at a glance
- Population
- 2,450
- Median age
- 35.5State: 39
- Median household income
- $86,830State: $83,390
- Median home value
- $227,500State: $263,300
- Median rent
- $1,149/moState: $1,274
- Homeowners
- 81.3%
- Bachelor's degree or higher
- 14.9%
- Average commute
- 26 min
Is Seneca a good place to live?
Pros: Median household income 4% higher than the Illinois median; home values 14% lower than the state median; an average commute of 26 minutes; unemployment of 4%.
Cons: A poverty rate of 22.2%.
The weather is best in June to September.
Cost of living in Seneca
Housing is the biggest part of the cost of living. In Seneca the median home value is $227,500, 32% lower than the U.S. median. Renters pay a median of $1,149 per month, which is 18.1% of household income. Homeowners with a mortgage pay $1,684 a month in housing costs.
Seneca median household income
The median household income in Seneca is $86,830 and the income per person is $41,006. 22.2% of residents live below the poverty line (Illinois: 11.8%).
Housing in Seneca: homes for sale and rent
- Housing units
- 968
- Owner-occupied
- 81.3%
- Renter-occupied
- 18.7%
- Vacant
- 6.3%Includes seasonal homes
- Median year built
- 1976
- Average household size
- 2.70
Seneca demographics
- Population
- 2,450
- Median age
- 35.5
- Under 18
- 28.6%
- 65 and older
- 12.1%
- Households
- 907
- Foreign-born
- 2%
- Veterans
- 11.2%Adults 18+
Hispanic or Latino can be of any race. Population history of Seneca ›
Education in Seneca
14.9% of adults 25 and older in Seneca have a bachelor's degree or higher (Illinois: 37.8%), and 2.8% have a graduate or professional degree.
Jobs and commute in Seneca
- Unemployment rate
- 4%State: 5.8%
- Average commute
- 26 minState: 28 min
- Work from home
- 8.2%
- Drive alone
- 77.8%
- Public transit
- 0%
- Walk to work
- 5.9%
- Homes with broadband
- 93.5%
Seneca vs nearby towns
| Town | Population | Median income | Home value | Rent |
|---|---|---|---|---|
| Seneca | 2,450 | $86,830 | $227,500 | $1,149 |
| Marseilles | 4,279 | $58,217 | $142,500 | $1,041 |
| Verona | 272 | $45,313 | $118,800 | $983 |
| Ransom | 245 | $82,500 | $93,300 | $775 |
| Mazon | 1,401 | $73,750 | $207,700 | $1,009 |
| Morris | 14,898 | $76,711 | $247,400 | $1,132 |
| Dayton | 271 | $73,750 | $271,000 | — |
| Ottawa | 18,447 | $71,413 | $154,000 | $920 |
| Grand Ridge | 584 | $78,929 | $158,700 | $1,023 |
More for people moving to Seneca
Seneca ZIP code ›Weather and climate ›Living in Seneca: FAQ
What is the median household income in Seneca, IL?
The median household income in Seneca is $86,830, 4% higher than the Illinois median of $83,390 (U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024).
What is the average home price in Seneca?
The median home value in Seneca is $227,500, compared with $263,300 in Illinois.
How much is rent in Seneca?
The median gross rent in Seneca is $1,149 per month, about 18.1% of household income.
Is Seneca, IL a good place to live?
Pluses: median household income 4% higher than the Illinois median; home values 14% lower than the state median; an average commute of 26 minutes; unemployment of 4%. Minuses: a poverty rate of 22.2%.
What is the median age in Seneca?
The median age in Seneca is 35.5 years (Illinois: 39).
How long is the commute in Seneca?
The average commute to work in Seneca is 26 minutes; 8.2% of workers work from home.
What is the unemployment rate in Seneca?
The unemployment rate in Seneca is 4% (U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024).
How educated is Seneca?
14.9% of adults in Seneca have a bachelor's degree or higher.
Source: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024 (margins of error apply, especially in small towns). Figures are in 2024 dollars.
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