The median home in Seneca, Illinois is valued at $242,414, up 5.6% year over year. Seneca is part of the Ottawa, IL metropolitan area, which CrashWatch tracks daily with real-time stress scores and crash risk analysis.

See the full metro analysis: Ottawa, IL stress score, crash risk, and 12-month forecast →

Home Value$242,414

+5.6%

AFFORDABILITY

Enter your income for Seneca.

Income (annual)

Down Payment

$48,483 on $242,414

Stretch — 29.2% of income

Above 28% but manageable with cuts.

PITI$1,826

P/I29.2%

Afford$232K

Gap-$10K

P&I $1,226Tax $450Ins $150

6.50% 30yr, 20% down, county tax + IL ins. 28% per HUD.

Home Buying Kit For Dummies (2025)Financing, negotiation, closing

Other cities in Illinois

Compare Seneca with other housing markets across Illinois.

Kenilworth$1927K Winnetka$1731K Glencoe$1507K Bannockburn$1222K Golf$1186K Hinsdale$1182K Lake Forest$1136K South Barrington$1077K

Full Ottawa, IL analysis

Stress scores, crash risk, early warning signals, and 12-month price forecasts for the Ottawa, IL metro.

View Ottawa, IL metro →

SENECA, IL