1. 93563: Pearblossom Zillow Zindex: $286,209
Year-over-year change:-22.3%2. 91331: Pacoima Zillow Zindex: $400,039
Year-over-year change:-22.1%3. 92617: Irvine Zillow Zindex: $1,456,184
Year-over-year change:-21.5%4. 90680: Stanton Zillow Zindex: $436,118
Year-over-year change:-19.6%5. 93591: Palmdale Zillow Zindex: $225,483
Year-over-year change:-19.4%6. 92868: Orange Zillow Zindex: $478,487
Year-over-year change:-18.3%7. 92704: Santa Ana Zillow Zindex: $511,184
Year-over-year change:-18.2%8. 92840: Garden Grove Zillow Zindex: $486,316
Year-over-year change:-17.9%9. 90620: Buena Park Zillow Zindex: $472,961
Year-over-year change:-17.7%10. 93534: Lancaster Zillow Zindex: $242,430
Year-over-year change:-17.4%11. 92658: Newport Beach Zillow Zindex: $1,452,039
Year-over-year change:-17.3%12. 92841: Garden Grove Zillow Zindex: $490,921
Year-over-year change:-17.3%13. 92804: Anaheim Zillow Zindex: $486,776
Year-over-year change:-17.2%14. 92866: Orange Zillow Zindex: $550,329
Year-over-year change:-17.2%15. 92806: Anaheim Zillow Zindex: $529,145
Year-over-year change:-16.9%16. 91335: Reseda Zillow Zindex: $441,121
Year-over-year change:-16.7%17. 92865: Orange Zillow Zindex: $527,763
Year-over-year change:-16.7%18. 92802: Anaheim Zillow Zindex: $501,974
Year-over-year change:-16.6%19. 92843: Garden Grove Zillow Zindex: $484,013
Year-over-year change:-16.5%20. 92637: Laguna Hills Zillow Zindex: $268,026
Year-over-year change:-16.4%