Homes under $400K in Key Largo, FL
30 for sale · 45 homes listed · Updated September 25, 2026
- 300 ocean drive 22, Key Largo 33037 $319,900 · 2 bd · 2 ba · 1,024 sqft
- 325 calusa street #120, Key Largo 33037 $350,000 · 2 bd · 2 ba
- 325 calusa street #259, Key Largo 33037 $349,000 · 2 bd · 1 ba
- 969 plantation road, Key Largo 33037 $389,000 · 4 bd · 1 ba · 1,344 sqft
- 101551 overseas highway # 154, Key Largo 33037 $340,000 · 2 bd · 1 ba · 315 sqft
- 101551 overseas highway 147, Key Largo 33037 $355,000 · 1 bd · 1 ba · 367 sqft
- 103950 overseas highway ru62, Key Largo 33037 $199,900 · 1 bd · 0 ba
- 300 ocean drive apt 26, Key Largo 33037 $339,000 · 2 bd · 3 ba · 1,024 sqft
- 300 ocean drive 26, Key Largo 33037 $339,000 · 2 bd · 3 ba · 1,024 sqft
- 325 calusa street # 15, Key Largo 33037 $335,000 · 2 bd · 1 ba · 275 sqft
- 325 calusa street 478, Key Largo 33037 $385,000 · 2 bd · 2 ba · 1,330 sqft
- 103650 overseas highway, Key Largo 33037 $85,000 · 2 bd · 2 ba · 2,178 sqft
- 325 calusa street #122, Key Largo 33037 $370,000 · 2 bd · 1 ba
- 98202 windward avenue, Key Largo 33037 $399,000 · 2 bd · 2 ba · 778 sqft
- 104000 overseas highway 1 - 2, Key Largo 33037 $295,000 · 3 bd · 3 ba · 2,300 sqft
- 98402 windward avenue, Key Largo 33037 $374,000 · 2 bd · 2 ba · 778 sqft
- 104000 overseas highway, Key Largo 33037 $350,000 · 3 bd · 3 ba · 2,334 sqft
- 13 judy place, Key Largo 33037 $369,900 · 3 bd · 2 ba · 1,344 sqft
- 104000 overseas highway 6-6, Key Largo 33037 $279,000 · 3 bd · 3 ba · 2,300 sqft
- 104000 overseas highway unit 6-6, Key Largo 33037 $279,000 · 3 bd · 3 ba · 2,400 sqft
- 104000 overseas highway 2 - 2, Key Largo 33037 $315,000 · 3 bd · 3 ba · 2,300 sqft
- 325 calusa street # 58, Key Largo 33037 $390,000 · 2 bd · 1 ba · 600 sqft
- 101551 overseas highway # 148, Key Largo 33037 $330,000 · 2 bd · 1 ba · 334 sqft
- 36 east 2nd 3p, Key Largo 33037 $29,000 · 2 bd · 1 ba · 700 sqft
- 36 east 2nd street p4, Key Largo 33037 $89,000 · 2 bd · 1 ba · 900 sqft
- 325 calusa street 259, Key Largo 33037 $365,000 · 2 bd · 1 ba · 400 sqft
- 325 calusa street 120, Key Largo 33037 $349,900 · 2 bd · 2 ba · 500 sqft
- 101551 overseas highway # 164, Key Largo 33037 $385,000 · 2 bd · 1 ba · 500 sqft
- 101551 overseas highway # 165, Key Largo 33037 $375,000 · 2 bd · 1 ba · 600 sqft
- 104000 overseas highway 3 - 3, Key Largo 33037 $325,000 · 3 bd · 3 ba · 2,300 sqft
- 104000 overseas highway 5 - 5, Key Largo 33037 Pending $350,000 · 3 bd · 3 ba · 2,352 sqft
- 325 calusa street 44, Key Largo 33037 Pending $355,000 · 2 bd · 2 ba
- 60 avenue c, Key Largo 33037 Pending $375,000 · 2 bd · 1 ba · 872 sqft
- 302 ryan avenue, Key Largo 33037 Pending $250,000 · 2 bd · 1 ba · 732 sqft
- 969 plantation rd road, Key Largo 33037 Active Under Contract $389,000 · 4 bd · 1 ba · 1,344 sqft
- 813 narragansett lane, Key Largo 33037 Active Under Contract $320,000 · 2 bd · 1 ba · 1,004 sqft
- 110 tweedy pie terrace, Key Largo 33037 Active Under Contract $369,000 · 2 bd · 2 ba · 830 sqft
- 86 avenue b, Key Largo 33037 Active Under Contract $380,000 · 2 bd · 2 ba · 1,014 sqft
- 104000 overseas highway 5 - 4, Key Largo 33037 Off market since Aug 2026 $350,000 · 3 bd · 3 ba · 2,352 sqft
- 325 calusa street 120, Key Largo 33037 Off market since Sep 2026 $350,000 · 2 bd · 2 ba · 500 sqft
- 325 calusa street 259, Key Largo 33037 Off market since Sep 2026 $349,000 · 2 bd · 1 ba · 400 sqft
- 325 calusa street 516, Key Largo 33037 Off market since Jul 2026 $335,000 · 2 bd · 1 ba
- 104000 overseas highway 3-6, Key Largo 33037 Sold on Jul 31, 2026 $299,000 · 3 bd · 3 ba · 2,300 sqft
- 101551 overseas highway 159, Key Largo 33037 Off market since Sep 2026 $355,000 · 2 bd · 2 ba · 416 sqft
- 300 ocean drive 23, Key Largo 33037 Off market since Jul 2026 $279,000 · 2 bd · 2 ba · 1,024 sqft