Homes under $400K in O Fallon, IL

36 for sale · 150 homes listed · Updated September 27, 2026 · Page 3 of 3

427 west 3rd street, O Fallon 62269 Active Under Contract $199,900 · 3 bd · 2 ba · 1,456 sqft
1027 shadow ridge crossing, O Fallon 62269 Active Under Contract $315,000 · 4 bd · 2 ba · 2,539 sqft
1126 east 3rd street, O Fallon 62269 Active Under Contract $385,000 · 4 bd · 3 ba · 3,008 sqft
102 pheasant run, O Fallon 62269 Active Under Contract $379,900 · 4 bd · 3 ba · 2,908 sqft
712 country oaks lane, O Fallon 62269 Active Under Contract $215,000 · 2 bd · 2 ba · 1,136 sqft
950 whitechapel drive, O Fallon 62269 Active Under Contract $255,000 · 3 bd · 3 ba · 1,965 sqft
164 eagle ridge, O Fallon 62269 Off market since Sep 2026 $80,000 · 1 bd · 1 ba · 600 sqft
630 aladar drive, O Fallon 62269 Off market since Sep 2026 $365,000 · 4 bd · 4 ba · 2,423 sqft
485 bandmour place, O Fallon 62269 Off market since Aug 2026 $339,000 · 3 bd · 3 ba · 2,480 sqft
953 benjamin drive, O Fallon 62269 Off market since Aug 2026 $385,000 · 4 bd · 4 ba · 3,090 sqft
118 alice drive, O Fallon 62269 Off market since Aug 2026 $244,500 · 3 bd · 2 ba · 1,454 sqft
1805 creekview drive, O Fallon 62269 Off market since Sep 2026 $92,000 · 2 bd · 2 ba · 1,056 sqft
506 east washington street, O Fallon 62269 Off market since Sep 2026 $289,900 · 4 bd · 3 ba · 1,569 sqft
401 ponderosa 2, O Fallon 62269 Off market since Sep 2026 $134,900 · 2 bd · 2 ba · 1,100 sqft
304 eagle ridge, O Fallon 62269 Off market since Sep 2026 $105,000 · 2 bd · 1 ba · 868 sqft
1019 north smiley street, O Fallon 62269 Off market since Sep 2026 $359,900 · 4 bd · 3 ba · 2,492 sqft
251 eagle ridge, O Fallon 62269 Off market since Aug 2026 $89,000 · 1 bd · 1 ba · 640 sqft
503 westfield drive, O Fallon 62269 Off market since Sep 2026 $305,000 · 3 bd · 3 ba · 2,385 sqft
107 brookside drive, O Fallon 62269 Off market since Sep 2026 $197,000 · 3 bd · 1 ba · 768 sqft
1020 north smiley street, O Fallon 62269 Off market since Sep 2026 $294,000 · 4 bd · 3 ba · 2,378 sqft
504 west fourth street, O Fallon 62269 Off market since Sep 2026 $209,900 · 3 bd · 1 ba · 1,320 sqft
1513 royal oak court, O Fallon 62269 Off market since Sep 2026 $245,000 · 3 bd · 2 ba · 1,777 sqft
118 alice, O Fallon 62269 Off market since Sep 2026 $239,900 · 3 bd · 2 ba · 1,454 sqft
1406 blackberry lane, O Fallon 62269 Off market since Sep 2026 $299,000 · 3 bd · 2 ba · 1,591 sqft
207 marilyn drive, O Fallon 62269 Off market since Sep 2026 $239,900 · 3 bd · 3 ba · 1,755 sqft
732 seagate drive, O Fallon 62269 Off market since Sep 2026 $135,000 · 0 ba
1013 south walnut street, O Fallon 62269 Off market since Sep 2026 $315,000 · 3 bd · 3 ba · 2,050 sqft
109 atlantic street, O Fallon 62269 Off market since Sep 2026 $189,900 · 2 bd · 1 ba · 1,096 sqft
287 eagle ridge, O Fallon 62269 Off market since Sep 2026 $115,000 · 2 bd · 1 ba · 1,008 sqft
421 west highway 50, O Fallon 62269 Off market since Sep 2026 $299,900 · 3 bd · 2 ba · 1,500 sqft
713 hartman lane, O Fallon 62269 Off market since Sep 2026 $197,000 · 2 bd · 1 ba · 1,450 sqft
204 marilyn drive, O Fallon 62269 Off market since Sep 2026 $273,000 · 2 bd · 2 ba · 2,633 sqft
413 north vine street, O Fallon 62269 Off market since Sep 2026 $269,500 · 3 bd · 2 ba · 1,580 sqft
810 meadowlark drive, O Fallon 62269 Off market since Sep 2026 $385,000 · 4 bd · 3 ba · 2,632 sqft
203 dartmouth drive, O Fallon 62269 Off market since Sep 2026 $225,000 · 3 bd · 2 ba · 1,213 sqft
961 sturbridge trail, O Fallon 62269 Off market since Sep 2026 $383,800 · 3 bd · 2 ba · 2,336 sqft
113 white pine avenue, O Fallon 62269 Off market since Sep 2026 $279,900 · 4 bd · 2 ba · 1,580 sqft
920 reiss road, O Fallon 62269 Off market since Sep 2026 $299,000 · 3 bd · 3 ba · 1,887 sqft
513 emily drive, O Fallon 62269 Off market since Sep 2026 $345,000 · 5 bd · 3 ba · 2,274 sqft
912 reiss road, O Fallon 62269 Off market since Sep 2026 $319,975 · 4 bd · 3 ba · 2,800 sqft
165 liberty crossing, O Fallon 62269 Off market since Sep 2026 $375,000 · 4 bd · 3 ba · 3,032 sqft
326 fairwood hills road, O Fallon 62269 Off market since Sep 2026 $399,500 · 4 bd · 3 ba · 2,640 sqft
622 rain hollow drive, O Fallon 62269 Off market since Sep 2026 $399,000 · 3 bd · 3 ba · 2,693 sqft
407 east 4th street, O Fallon 62269 Off market since Sep 2026 $294,000 · 5 bd · 3 ba · 2,420 sqft
320 west third street, O Fallon 62269 Off market since Sep 2026 $119,900 · 1 bd · 1 ba · 566 sqft
409 donna drive, O Fallon 62269 Off market since Sep 2026 $125,900 · 2 bd · 2 ba · 1,100 sqft
221 south second street, O Fallon 62269 Off market since Sep 2026 $65,000 · 2 bd · 1 ba · 900 sqft
607 south augusta street, O Fallon 62269 Off market since Sep 2026 $333,000 · 4 bd · 3 ba · 3,378 sqft
305 spruce street, O Fallon 62269 Off market since Sep 2026 $239,900 · 4 bd · 2 ba · 1,619 sqft
485 bandmour place, O Fallon 62269 Off market since Sep 2026 $339,000 · 3 bd · 3 ba · 2,480 sqft