Oswego Market Report · IL Home Values
Oswego, IL holds about 12,440 homes, 88% of them owner-occupied, with a median year built of 2002. Subdivisions offer newer single-family construction and larger yard sizes. Buyers balance distance from eastern DuPage County centers against lower land costs along the Fox River valley. Residential options provide an alternative to denser development in nearby Aurora or Plainfield.
The Oswego median sold price stands at $403,500 as of May 2026, +12.1% year over year. The twelve-month peak was $445,000 in August 2025. 460 homes closed over the period, averaging 100.2% of list price most recently, with 49 days on market.
Read the trend, not the single month. Oswego pricing follows preparation and seasonality more than it follows rate news, and the spread between prepared and unprepared homes is wider than the median suggests. A street-level read is a different number from the one above, and the table below is where it starts.
Oswego by the month
12 months of Oswego closings, June 2025 through May 2026. Each panel is one series; the table carries every figure.
The properties shown here are transactions I personally represented, compiled from my public agent record. This site is not an MLS IDX feed and does not show the full active market; ask me and I will pull everything that fits.
Source: Redfin (through May 2026) · U.S. Census ACS (2024)
Twelve months of Oswego closings
| Month | Median sold | Closed | New listings | Avg DOM | List-to-sale |
|---|---|---|---|---|---|
| June 2025 | $360,000 | 57 | 74 | 44 | 101.6% |
| July 2025 | $419,000 | 60 | 58 | 48 | 100.4% |
| August 2025 | $445,000 | 45 | 45 | 44 | 100.2% |
| September 2025 | $372,500 | 40 | 35 | 65 | 98.7% |
| October 2025 | $411,995 | 40 | 53 | 63 | 100.1% |
| November 2025 | $360,000 | 29 | 22 | 53 | 98.9% |
| December 2025 | $377,500 | 18 | 24 | 64 | 98.6% |
| January 2026 | $362,000 | 28 | 40 | 72 | 98.4% |
| February 2026 | $350,000 | 21 | 42 | 72 | 100.3% |
| March 2026 | $399,990 | 47 | 54 | 59 | 100.2% |
| April 2026 | $370,000 | 23 | 76 | 45 | 100.3% |
| May 2026 | $403,500 | 52 | 81 | 49 | 100.2% |
The properties shown here are transactions I personally represented, compiled from my public agent record. This site is not an MLS IDX feed and does not show the full active market; ask me and I will pull everything that fits.
Source: Redfin (through May 2026) · U.S. Census ACS (2024)
What the Oswego numbers say
The median Oswego home sold for $403,500 in May 2026, up 12.1% from $360,000 in June 2025. The twelve-month high was $445,000 in August 2025.
Homes averaged 49 days on the market and closed at 100.2% of list price in May 2026. That is 5 days slower than June 2025.
At the pace of the last three months, the 157 homes on the market in Oswego represent about 3.9 months of supply: less than four months, which is the range where prepared homes tend to clear quickly and buyers have little room to wait.
Buyers should expect to move on a home in days rather than weeks, and to have the comparable sales in hand before writing. Sellers are getting close to their asking price, which usually means the price was set against recent comparable sales rather than against what neighbors are asking.
Source: Redfin (through May 2026) · U.S. Census ACS (2024)
Sold roundup
Recent Oswego closings.
Talk to someone who works Oswego
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