The hottest ZIP codes in Illinois
Springfield, IL 62707 was the most competitive of 464 Illinois ZIP codes with enough sales in the 3 months ending August 2026: 64% of homes sold over asking and the typical home went under contract in 3 days.
Top 25 by competition score
| # | ZIP code | Score | Sold over list | Days on market |
|---|---|---|---|---|
| 1 | Springfield, IL 62707 | 96 | 64% | 3 |
| 2 | Rockford, IL 61108 | 95 | 63% | 6 |
| 3 | Machesney Park, IL 61115 | 95 | 63% | 7 |
| 4 | Rockton, IL 61072 | 94 | 57% | 4 |
| 5 | Dunlap, IL 61525 | 94 | 56% | 8 |
| 6 | Loves Park, IL 61111 | 93 | 54% | 8 |
| 7 | Rochester, IL 62563 | 93 | 56% | 5 |
| 8 | Washington, IL 61571 | 92 | 50% | 4 |
| 9 | East Peoria, IL 61611 | 92 | 53% | 8 |
| 10 | Rockford, IL 61109 | 92 | 53% | 7 |
| 11 | Rockford, IL 61102 | 92 | 55% | 10 |
| 12 | Chatham, IL 62629 | 91 | 46% | 5 |
| 13 | Springfield, IL 62704 | 91 | 44% | 4 |
| 14 | Wilmette, IL 60091 | 91 | 64% | 30 |
| 15 | Rockford, IL 61107 | 90 | 49% | 11 |
| 16 | Peoria, IL 61607 | 90 | 46% | 10 |
| 17 | Rockford, IL 61114 | 89 | 48% | 13 |
| 18 | Auburn, IL 62615 | 89 | 47% | 4 |
| 19 | Springfield, IL 62711 | 89 | 45% | 6 |
| 20 | Rockford, IL 61103 | 89 | 49% | 7 |
| 21 | Springfield, IL 62702 | 89 | 48% | 5 |
| 22 | Winnetka, IL 60093 | 88 | 55% | 34 |
| 23 | Chicago, IL 60657 | 87 | 63% | 38 |
| 24 | Belvidere, IL 61008 | 87 | 45% | 11 |
| 25 | Chicago, IL 60647 | 87 | 65% | 37 |
Least competitive
| ZIP code | Score | Sold over list | Days on market |
|---|---|---|---|
| Harrisburg, IL 62946 | 15 | 14% | 69 |
| Lanark, IL 61046 | 17 | 0% | 84 |
| Carterville, IL 62918 | 17 | 9% | 57 |
| Carbondale, IL 62901 | 19 | 9% | 71 |
| Macomb, IL 61455 | 19 | 12% | 54 |
| Litchfield, IL 62056 | 21 | 13% | 56 |
| Dolton, IL 60419 | 22 | 18% | 97 |
| Eldorado, IL 62930 | 22 | 13% | 89 |
| Watseka, IL 60970 | 24 | 16% | 95 |
| Prophetstown, IL 61277 | 24 | 7% | 51 |
How the ranking works
Each ZIP code with enough recent sales gets a competition score from 0 to 100 based on four measures: the share of homes sold above their original list price, the average sale-to-list ratio, months of supply and median days on market. Scores compare every U.S. ZIP code against the others and update monthly from Redfin data. Methodology
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