Housing in Seneca, IL
Home values, rent, ownership rates, and housing market data
Housing Market Snapshot
Source: Redfin — December 2025Median Sale Price
$260,000
Median List Price
N/A
Price Per Sq Ft
$146
Days on Market
111
Active Inventory
2
Months of Supply
0.5
Seller's market
Zillow Home Value
$242,414
ZHVI — January 2026
Price Trends
Source: RedfinMarket Competitiveness
Source: RedfinSold Above List
25.0%
Sale-to-List Ratio
97.7%
Buyer's market
Market Activity
Source: RedfinHomes Sold
4
Price Per Square Foot
Source: RedfinMedian Sale $/SF
$146
Seneca vs Similar Cities
Source: Census ACS / Redfin (2023)Compared to cities with under 10,000 residents. Seneca is highlighted.
Median Home Value
Median Rent
Median Price Per Sq Ft
Rent Burden
Census Housing Data
Source: U.S. Census Bureau ACS (2023)Median Home Value
$206,400
Median Rent
$988
Total Housing Units
971
Vacancy Rate
4.5%
Owner Occupied
76.6%
Renter Occupied
23.4%
Median Property Tax
$3,331
per year
Monthly Cost (w/ Mortgage)
$1,049
Housing Types
The current median sale price in Seneca, IL is $260,000 according to Redfin data. Homes spend a median of 111 days on the market. 25.0% of homes sold above asking price. The market has 0.5 months of supply. The median price per square foot is $146. The median rent is $988 per month (Census ACS). About 76.6% of housing units are owner-occupied. The median year homes were built is 1975. There are 971 total housing units.