Real Estate Data API

Illinois market data

54K active listings out of 5.23M total properties we track across 1595 ZIPs in Illinois — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

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Active
54K
Median
$300K
+7.5%
Sold/mo
2.3K
-75.9%
Tracked
5.23M
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Flip activity across Illinois — buy-and-resell transactions within 18 months — clusters into distinct corridors visible above. Out of 157,355 sales in the past year, a meaningful slice fits the classic flip profile. Hover for local flip counts.

Key Numbers
Tracked
5.23M
Active
54K
Sales (12mo)
157K
Median list
$300K
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1.8% of recorded sales in Illinois have cleared the $1M mark. Median sale price across all recorded transactions is $189K.

Key Numbers
Tracked
5.23M
Active
54K
Sales (12mo)
157K
Median list
$300K
$1M+ share
1.8%
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Illinois's housing stock peak-built in the 2000s. 37% of homes were built after 1980; 21.3% predate 1940. Since 2020 we've tracked 58K newly-built homes across the state.

Key Numbers
Tracked
5.23M
Active
54K
Sales (12mo)
157K
Median list
$300K
Peak decade
2000s
New (2020+)
58K
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Corporate and LLC buyer activity is most visible in Illinois's denser metros. Our dataset tracks 4.65M rental listings in Illinois with enough context to calculate gross yield.

Key Numbers
Tracked
5.23M
Active
54K
Sales (12mo)
157K
Median list
$300K
Get this data →

The 2008–2012 crisis produced recorded foreclosure waves across Illinois; the map above replays those waves by year. Current rates are at multi-year lows in most of the state.

Key Numbers
Tracked
5.23M
Active
54K
Sales (12mo)
157K
Median list
$300K

Inventory breakdown

Distribution of the 54K currently-active listings across Illinois. Our full dataset covers 5.23M properties — listings, off-market homes, rentals, and full sales/tax history.

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Active by price range
Under $300K 26,198 (50.9%)
$300K–$500K 13,682 (26.6%)
$500K–$750K 6,258 (12.2%)
$750K–$1M 2,299 (4.5%)
$1M–$2M 2,099 (4.1%)
$2M+ 953 (1.9%)
Active by bedroom count
Studio/1 bd 2,853
2 bd 11,261
3 bd 19,679
4 bd 11,782
5+ bd 7,277
Active by property type
Single Family 36,380 (67.2%)
Condo 8,476 (15.7%)
Multi Family 4,179 (7.7%)
Townhouse 3,431 (6.3%)
Manufactured 1,280 (2.4%)
Lot 332 (0.6%)

Metros in Illinois

Drill into any metro for hex-level breakdowns.

For Developers

Get Illinois data in your app

Every number on this page is queryable via a single REST endpoint.

curl
request
GET https://api.straply.com/v1/markets/state/IL
Authorization: Bearer $STRAPLY_KEY
200 OK response
{
  "state": "IL",
  "total_tracked": 5225474,
  "active": 54128,
  "median_list": 299500,
  "sold_this_month": 2296
}