Williamson County IL FSBO Homes - Page 3 (280)

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We have 280 homes for sale by owner in Williamson County, IL. The median list price in Williamson County, IL is $857,073 and the average price per square foot is $2,406.

Active Under Contract

Homes For Sale

$235,000

3 Bed
2 Bath
1,655 Sqft

1409 Summer Drive, Williamson County, IL

This adorable well kept 3 bedroom 2 bath home is a located in the established anna lou estates and has the... Read More

Pending

Homes For Sale

$89,900

2 Bed
1 Bath
946 Sqft

1202 Davis Avenue, Williamson County, IL

Welcome to this updated two-bedroom home that is close to school and amenities. there is a one-car detached... Read More

Pending

Homes For Sale

$123,900

2 Bed
1 Bath
1,070 Sqft
0.17 Acre(Lot)

317 S 3rd Street, Williamson County, IL

This smaller but tidy well-maintained home is a must see! you will love the custom cabinetry and countertops.... Read More

Active Under Contract

Homes For Sale

$149,900

4 Bed
2 Bath
2,028 Sqft

1207 E Reeves Street, Williamson County, IL

Plenty of room for everyone's needs in this 4-bedroom 2 bath home with over 2000 sq ft. if offers a nice living... Read More

Active Under Contract

Homes For Sale

$149,900

2 Bed
1 Bath
958 Sqft

416 E Jefferson Street, Williamson County, IL

This super cute and cozy little home, located on a corner lot with a fenced back yard, is perfect for those just... Read More

Homes For Sale

$189,900

3 Bed
3 Bath
967 Sqft

1401 W End Street, Williamson County, IL

Nice bi-level home in the heart of marion on a private dead end street that features over 1900 sq ft. 3 beds... Read More

Homes For Sale

$239,900

3 Bed
2 Bath
1,984 Sqft

638 Lake Harbor Drive, Williamson County, IL

Beautiful move in ready villa in lake harbor that features 3 beds 2 full baths, beautiful kitchen with granite... Read More

Active Under Contract

Homes For Sale

$125,000

3 Bed
1 Bath
1,200 Sqft
0.196 Acre(Lot)

610 S Carbon Street, Williamson County, IL

Charming 3-bedroom home with modern upgrades and multiple living spaces! they’ve raised their family in this... Read More

Active Under Contract

Homes For Sale

$299,900

3 Bed
2 Bath
1,758 Sqft
1.05 Acres(Lot)

12500 Bristle Ridge Lane, Williamson County, IL

Carterville school district! come take a look at this like new gorgeous craftsman style 3 bedroom 2 bath home.... Read More

Homes For Sale

$164,000

3 Bed
2 Bath
1,346 Sqft
0.25 Acre(Lot)

414 Charlotte Road, Williamson County, IL

3 bedroom, 2 bath home with 2 living areas! this home has had tons of updates including roof, windows, siding,... Read More

Active Under Contract

Homes For Sale

$105,000

4 Bed
3 Bath
2,322 Sqft

105 S 11th Street, Williamson County, IL

New listing: move-in ready home with 4 bedrooms (possibly 5) and 3 bathrooms, perfect for families or investors.... Read More

Active Under Contract

Homes For Sale

$152,000

2 Bed
2 Bath
1,244 Sqft

1310 N Glendale Street, Williamson County, IL

This home is so very extra! high ceilings w/fans, open living to dining room floor plan, & beautiful real... Read More

Active Under Contract

Homes For Sale

$79,900

2 Bed
1 Bath
1,064 Sqft

204 W White Street, Williamson County, IL

Great starter home with this 2 bed 1 bath home that has fenced in yard with 1 car detached garage plus a large... Read More

Homes For Sale

$165,000

3 Bed
2 Bath
1,232 Sqft

614 S Elm St, Williamson County, IL

Welcome to this charming residence nestled in the heart of cambria, illinois. this well-maintained home at 614 s... Read More

Homes For Sale

$320,000

3 Bed
3 Bath
2,190 Sqft

2702 Hickory Lane, Williamson County, IL

Welcome to this stunning 3-bedroom, 2.5-bath home in a highly desirable neighborhood! featuring an open floor... Read More

Homes For Sale

$140,000

4 Bed
2 Bath
2,470 Sqft

1001 S 14th Street, Williamson County, IL

This 4 bedroom 2 bath home is very spacious with plenty of opportunities located on a corner lot. this property... Read More

Homes For Sale

$159,900

3 Bed
2 Bath
1,202 Sqft

1004 Jefferson Avenue, Williamson County, IL

Opportunity awaits with this renovated 3-bedroom, 2-bath beauty, situated on a lush, deep lot! the home’s charm... Read More

Active Under Contract

Homes For Sale

$64,900

3 Bed
1 Bath
1,120 Sqft

907 N Garfield Street, Williamson County, IL

This home is priced for the investor or buyer. it's a 3 bedroom, 1 bath home with 1120 advertised sf and a full... Read More

Active Under Contract

Homes For Sale

$199,900

3 Bed
2 Bath
1,200 Sqft

503 Missouri Avenue, Williamson County, IL

This beautiful 3-bedroom, 2-bathroom home, built in 2021, is freshly painted and is move-in-ready with all... Read More

Active Under Contract

Homes For Sale

$487,500

5 Bed
4 Bath
4,541 Sqft
0.76 Acre(Lot)

105 Quail Run Drive, Williamson County, IL

Whether you like or need to live large this 4,500+ sq foot home is sure to meet your needs. enjoy the covered... Read More

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Learn More About Williamson County, Illinois

Currently there are 185 homes for sale, 130 vacant land for sale and 8 townhomes for sale in Williamson County

Currently Williamson County has 323 properties on the market for sale. The inventory was last updated 04/10/2025. Of these properties, 185 single family homes are for sale by their owners in Williamson County, and 0 condos are for sale by their owners in Williamson County. The average price of the single family homes for sale in Williamson County, is $301,154, the average condo price in Williamson County, is $291,085. The average price per square foot of the active inventory is $94. This is based the living area square footage.

Over the last year, there have been 0 of properties sold in Williamson County. Of these properties, 0 single family homes have sold by their owners in Williamson County, and 0 condos have sold by their owners in Williamson County. The average sales price of the single family homes sold in Williamson County, is $. Single family homes have been selling for per square foot of living area. The average sales price of the condos for sale in Williamson County, is $. Condos have been selling for per square foot of living area.

If you are thinking of selling your Williamson County home, try our flat fee listing service, Our list fees start at $449, and may save you $15,000 in real estate commissions. Click here to start saving.

Disclaimer: Listing broker has attempted to offer accurate data, but buyers/lessees are advised to confirm all information IDX information is provided exclusively for consumers' personal, non-commercial use that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that data is deemed reliable but is not guaranteed accurate by the MLS. The MLS may, at its discretion, require use of other disclaimers as necessary to protect Participants and/or the MLS from liability.
This data up-to-date as of 04/10/2025

Williamson County IL FSBO Homes - Page 3 (280)

1409 Summer Drive, Williamson County, IL

1202 Davis Avenue, Williamson County, IL

317 S 3rd Street, Williamson County, IL

1207 E Reeves Street, Williamson County, IL

416 E Jefferson Street, Williamson County, IL

1401 W End Street, Williamson County, IL

638 Lake Harbor Drive, Williamson County, IL

610 S Carbon Street, Williamson County, IL

12500 Bristle Ridge Lane, Williamson County, IL

414 Charlotte Road, Williamson County, IL

105 S 11th Street, Williamson County, IL

1310 N Glendale Street, Williamson County, IL

204 W White Street, Williamson County, IL

614 S Elm St, Williamson County, IL

2702 Hickory Lane, Williamson County, IL

1001 S 14th Street, Williamson County, IL

1004 Jefferson Avenue, Williamson County, IL

907 N Garfield Street, Williamson County, IL

503 Missouri Avenue, Williamson County, IL

105 Quail Run Drive, Williamson County, IL

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Williamson County IL FSBO Homes - Page 3 (280)

1409 Summer Drive, Williamson County, IL

1202 Davis Avenue, Williamson County, IL

317 S 3rd Street, Williamson County, IL

1207 E Reeves Street, Williamson County, IL

416 E Jefferson Street, Williamson County, IL

1401 W End Street, Williamson County, IL

638 Lake Harbor Drive, Williamson County, IL

610 S Carbon Street, Williamson County, IL

12500 Bristle Ridge Lane, Williamson County, IL

414 Charlotte Road, Williamson County, IL

105 S 11th Street, Williamson County, IL

1310 N Glendale Street, Williamson County, IL

204 W White Street, Williamson County, IL

614 S Elm St, Williamson County, IL

2702 Hickory Lane, Williamson County, IL

1001 S 14th Street, Williamson County, IL

1004 Jefferson Avenue, Williamson County, IL

907 N Garfield Street, Williamson County, IL

503 Missouri Avenue, Williamson County, IL

105 Quail Run Drive, Williamson County, IL

Learn More About Williamson County, Illinois

For Sale By Owner Illinois

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For Sale By Owner Tennessee

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For Sale By Owner Missouri

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