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Featured local agent — Port Byron, IL
Sarah Mitchell
Compass Real Estate · Port Byron, IL
“Your trusted relocation specialist since 2009. 350+ homes sold. Zero-pressure, data-first approach.”
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Port Byron, IL Housing Market
The typical home in Port Byron, IL is worth $317,500, rose 12.0% over the past year (Zillow Home Value Index, July 2026). The last median sale price Redfin published was $268,000, +8.1% year over year (through May 2026). With 0.7 months of supply and homes going under contract in about 6 days, Port Byron is a strong seller's market. At today's 6.66% 30-year fixed rate, 20% down on a $317,500 home is about $1,632/mo in principal and interest.
Key numbers for Port Byron, IL
Typical home value
$317,500
+12.0% in 12 months
Zillow, July 2026
Median sale price
$268,000
+8.1% year over year
Redfin, through May 2026
Days on market
6
Fast-moving
Redfin, through May 2026
Active listings
2
0.7 months of supply
Redfin, through May 2026
30-yr fixed rate
6.66%
Freddie Mac weekly average
Freddie Mac via FRED, August 2026
Median household income
$101,250
Home costs 3.1x income
U.S. Census ACS, 2023
Sale-to-list ratio
99.0%
Selling below asking
Redfin, through May 2026
Zillow figures are as of July 2026 and refresh monthly. Redfin figures are through May 2026 — Redfin stopped publishing its public market trackers in June 2026, so those numbers are final, not current. Mortgage rates come from Freddie Mac via FRED and update weekly.
Is Port Byron a buyer's or seller's market?
Port Byron, IL is a strong seller's market, based on 0.7 months of supply and homes selling in about 6 days. Under 2 months of supply is a severe shortage: expect competition on almost anything priced correctly, and little room to negotiate below asking.
Inputs are Redfin's final published period (May 2026). How we classify markets · Where the data comes from
What does the Port Byron housing market data show?
Every row below is Redfin's final published month for Port Byron, IL. Redfin, through May 2026
| Metric | Value |
|---|---|
| Median sale price | $268,000 |
| Median list price | $400,000 |
| Year-over-year price change | +8.1% |
| Median price per sq ft | $126/sq ft |
| Median days on market | 6 days |
| Active inventory | 2 listings |
| Months of supply | 0.7 months |
| Sale-to-list price ratio | 99.0% |
| Homes sold (that month) | 3 |
| New listings (that month) | 3 |
| Market condition | Strong seller's market |
How to read these numbers
- Median sale price
- Half the homes that closed sold for more than this, half for less. It moves with what kind of home sold that month, so a quiet month with two big sales can swing it. Redfin's figure for Port Byron is frozen at May 2026.
- Typical home value (ZHVI)
- Zillow's estimate of what a mid-market home in Port Byron is worth right now, whether or not it sold. It is smoother than the median sale price and it still refreshes monthly, which is why this page leads with it.
- Months of supply
- How long it would take to sell every active listing at the current pace. Under 3 favors sellers, over 6 favors buyers, and 3 to 6 is the balanced band.
- Days on market
- Median time from listing to accepted offer. Short means you should have financing ready before you tour; long means there is room to negotiate on price and repairs.
- Sale-to-list ratio
- Sale price divided by the last asking price. Above 100% means bidding above asking is normal here; below 100% means the typical buyer got a discount.
- Price per square foot
- The size-adjusted price. Use it to compare a 1,400 sq ft house to a 2,600 sq ft house, not to value your own home — lot, condition and age move it a lot.
- Listings with a price cut
- Share of active listings that dropped their asking price in the month. A high share is the earliest visible sign that sellers are ahead of what buyers will pay.
- Typical asking rent (ZORI)
- Zillow's repeat-rent index for asking rents on new leases. Paired with the home value it gives the price-to-rent ratio in the rent-vs-buy section below.
How have Port Byron home prices moved?
Over the last three years the median sale price in Port Byron, IL rose 1.5%, from $264,000 to $268,000. The live Zillow value series has rose 12.0% in the last 12 months, which is the more current read now that Redfin's series has stopped. For prices to fall meaningfully from here, supply would have to keep building past 0.7 months while the sale-to-list ratio slips below its current 99.0%. Watch those two together — they move before the median does.
Redfin, through May 2026 — the chart ends at Redfin's final published month.
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What does it cost to buy a home in Port Byron?
Priced off the typical home value of $317,500 at the current 6.66% 30-year fixed rate. These are principal and interest only — property taxes, homeowner's insurance, HOA dues and mortgage insurance are on top, and they vary enough by property that we will not guess them for you.
| Down payment | Cash at close | Loan amount | Monthly P&I |
|---|---|---|---|
| 20% | $63,500 | $254,000 | $1,632/mo |
| 5% | $15,875 | $301,625 | $1,938/mo |
Zillow, July 2026 for the price · Freddie Mac via FRED, August 2026 for the rate
What income do you need?
Lenders generally want housing costs under 28% of gross income. On the 20%-down payment of $1,632, that implies roughly $69,955 a year before you add taxes and insurance. The median household in Port Byron earns $101,250, about $31,295 more than that threshold — the typical local household clears the payment on a typical local home with 20% down. That puts the price-to-income ratio at 3.1x — close to the historical 3x norm, which is unusual in 2026.
Run it with your own numbers: affordability calculator · mortgage calculator
Buying in Port Byron in the next 12 months?
Tell us your timeline. We send the Port Byron market brief: the price ranges that actually clear, how long homes sit, and what to fix on your credit before you apply.
Is it cheaper to rent or buy in Port Byron?
Zillow does not publish a rent index (ZORI) for Port Byron, IL, so we cannot compute a price-to-rent ratio here without borrowing a nearby market's rents and calling them local — which we will not do. The rent vs. buy calculator works with a rent figure you supply.
Is inventory rising or falling in Port Byron?
Active listings in Port Byron, IL went from 4 in November 2024 to 2 in May 2026, a -50.0% change. Falling inventory tightens competition. When supply drops while demand holds, sale-to-list ratios rise before the median sale price does.
| Month | Active listings | New listings |
|---|---|---|
| December 2024 | 3 | not published |
| April 2025 | 7 | 2 |
| May 2025 | 6 | 4 |
| June 2025 | 7 | 1 |
| July 2025 | 6 | 3 |
| August 2025 | 5 | 1 |
| September 2025 | 3 | 1 |
| October 2025 | 2 | 1 |
| November 2025 | 2 | 1 |
| March 2026 | 1 | 3 |
| April 2026 | 1 | 1 |
| May 2026 | 2 | 3 |
Redfin, through May 2026
How does Port Byron compare to Illinois and the U.S.?
Port Byron homes sell for $268,000 — 21% below the Illinois median of $337,900. Against the national median of $410,700, Port Byron runs 35% lower. Year-over-year, Port Byron moved +8.1% against Illinois's +5.9% — a bigger swing than the state as a whole.
| Market | Median sale price | YoY | Days on market |
|---|---|---|---|
| Port Byron, IL | $268,000 | +8.1% | 6 days |
| Illinois statewide | $337,900 | +5.9% | 43 days |
| United States | $410,700 | not published | not published |
City and state rows: Redfin, through May 2026 · U.S. row: Freddie Mac via FRED, April 2026 (MSPUS, quarterly)
What to do next in Port Byron
What buyers should watch
- Months of supply, currently 0.7. It turns before price does — when it climbs past 6, sellers start taking offers they would have rejected a quarter earlier.
- The gap between 5% and 20% down here is $306 a month in principal and interest alone, before mortgage insurance. That gap, not the price, is usually what decides your timeline.
- Rate moves. At 6.66%, every full point of rate change moves the payment on a $317,500 home more than a 5% price change does.
- Your credit tier before you shop, not after — it sets the rate you are quoted. Run your numbers first.
What sellers should know
- The median Port Byron listing goes under contract in 6 days. If yours passes that mark, the market is telling you the price is wrong — not that you need more showings.
- Homes here close at 99.0% of asking. Price to that ratio from day one rather than chasing the market down in cuts.
- In the last published month Port Byron added 3 new listings against 3 sales — more clearing than arriving, which is the better window to list.
- Your equity moved +12.0% in the last 12 months on the Zillow value series. That, not the price you paid, is what sets your net proceeds.
- Comparable ZIP-level pricing inside Port Byron varies more than the citywide median suggests — check the ZIP pages below before you set a number.
Homes for sale in Port Byron
There are currently 2 homes listed for sale in Port Byron, Illinois. The median listing price is $400K.
Active listings
2
Homes on market
Median list price
$400K
Avg. days on market
6
Days until sale
New this week
3
Newly listed
How much do homes cost in Port Byron by property type?
How the Port Byron, IL market breaks down across single-family homes, condos and townhouses. Redfin, through May 2026
| Property type | Median price | Price / sq ft | Homes sold | Days on market |
|---|---|---|---|---|
| Single-family | $268,000 | $126/sq ft | 3 | 6 days |
| Condo / co-op | $265,000 | $122/sq ft | 1 | 26 days |
| Townhouse | $115,000 | $134/sq ft | 1 | 3 days |
Who lives in Port Byron?
American Community Survey estimates for Port Byron. U.S. Census ACS, 2023
Population
1,959
Households
775
Median income
$101,250/yr
Median age
42 years
Owner-occupied
85.2%
Median home value
$259,300
Median gross rent
$513/mo
Mean commute
22 min
85.2% of occupied homes in Port Byron are owner-occupied, and the rest are rented — which is the share that decides how much of the local housing stock ever reaches the for-sale market. The Census self-reported median home value is $259,300 against Zillow's $317,500 typical value; the gap is normal — ACS asks owners what they think their home is worth, Zillow models transactions.
Which public schools serve Port Byron?
3 schools tracked · 1,084 students
The largest public schools serving Port Byron, IL by enrollment, drawn from the National Center for Education Statistics. School quality is a commonly cited factor in home-buying decisions — these are the campuses families in this area are most likely to encounter.
Riverdale Elem School
Grades PK-5 · 515 students
Riverdale Sr High School
Grades 9-12 · 308 students
Riverdale Middle School
Grades 6-8 · 261 students
Source: National Center for Education Statistics, Common Core of Data directory. Updated annually. Ratings and test scores are not currently displayed.
Which cities are near Port Byron, IL?
Ordered by distance from Port Byron, not by size. Compare Port Byron side by side with any of them.
Port Byron housing market FAQ
Is Port Byron a buyer's or seller's market?
Port Byron, IL is currently a strong seller's market. That read comes from 0.7 months of supply, homes going under contract in about 6 days, and sellers getting 99.0% of their asking price in the last month Redfin published (May 2026).
How much do homes cost in Port Byron?
The typical home in Port Byron, IL is worth $317,500 (Zillow Home Value Index, July 2026). The median sale price in the last month Redfin published was $268,000, about $126 per square foot.
Is Port Byron cheaper than the rest of Illinois?
Port Byron's median sale price of $268,000 is 21% lower than the Illinois statewide median of $337,900, and 35% below the U.S. median of $410,700. Both figures are for the same period.
How long do homes take to sell in Port Byron?
Homes in Port Byron, IL spent a median of 6 days on market before going under contract, versus 43 days statewide. Under three weeks means well-priced listings move before most buyers can schedule a second showing. (Redfin, through May 2026.)
What income do you need to buy a home in Port Byron?
At the current 30-year fixed rate of 6.66%, 20% down on a $317,500 home is about $1,632 a month in principal and interest. Lenders typically want that under 28% of gross income, which works out to roughly $69,955 a year before taxes, insurance, HOA dues or mortgage insurance. The local median household income is $101,250.
Are home prices rising in Port Byron?
The typical home value in Port Byron, IL rose 12.0% over the last 12 months, from $283,374 to $317,500 (Zillow, July 2026). This is the live series — it refreshes monthly.
What are the cheapest ZIP codes in Port Byron?
Port Byron ZIP-level sale prices are not all published for the same period, so ranking them would compare different months. The ZIP pages listed on this page show what we hold for each one individually.
Is now a good time to buy in Port Byron?
That depends on your timeline, not on a headline. What the data says today: Port Byron, IL is a strong seller's market with 0.7 months of supply, the 30-year fixed rate is 6.66%. Properties Incorporated publishes the data; it does not give financial advice.
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