Round Lake IL
183 active listings out of 9.2K total properties we track across 2 Round Lake ZIPs — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.
While you're here, take in the bigger picture — maps below show Illinois (statewide), not just Round Lake. Same company, same dataset, different resolution.
Inventory breakdown
Distribution of the 183 currently-active listings in Round Lake, IL. Full dataset covers 9.2K properties — listings, off-market homes, rentals, and full history.
ZIP codes in Round Lake
Drill into any ZIP for hex-level breakdowns.
Nearby cities
Other Illinois cities within driving distance.
Get Round Lake, IL data in your app
GET https://api.straply.com/v1/markets/city/round-lake-il
Authorization: Bearer $STRAPLY_KEY{
"city": "round-lake-il",
"total_tracked": 9220,
"active": 183,
"median_list": 285000
}Round Lake, IL real estate: market summary
As of November 2026, Straply tracks 9,220 homes in Round Lake, IL, with 183 active for sale at a median list price of $285,000 (~$176/sq ft). Notably, home prices are climbing — the median sale price is up 12% year over year.
- Median list price
- $285,000
- Median $/sq ft
- $176
- Active listings
- 183
- Median sale price
- $300,000 (+12% YoY)
- Properties tracked
- 9,220
Frequently asked: Round Lake, IL real estate
What is the median home price in Round Lake?
The median list price in Round Lake, IL is $285,000 (about $176 per square foot), based on 183 active listings tracked by Straply as of November 2026.
What price range are homes in Round Lake?
Active listings in Round Lake, IL concentrate in: 59% under $300k and 35% $300k–$500k.
Are home prices in Round Lake going up or down?
The median sale price is $300,000, up 12% year over year. Straply tracked 274 sales here over the past 12 months.
How many homes are for sale in Round Lake?
Straply is tracking 183 active listings in Round Lake, IL out of 9,220 properties on record as of November 2026.
How old are the homes in Round Lake?
Most homes in Round Lake, IL were built in the 2000s. About 85% were built after 1980, while 5% predate 1940. The newest tracked home dates to 2026.
What types of homes are in Round Lake?
Round Lake, IL is mostly townhouses (47% of listings). Also common: single-family homes 37%, condos 8%.
How many bedrooms do homes in Round Lake typically have?
The most common size in Round Lake, IL is 2 bd.
What areas are near Round Lake?
Nearby markets Straply also tracks include Round Lake Park, Hainesville, Round Lake Beach, Round Lake Heights.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.