Zip Code: 98850 (Rock Island, Washington) - Trend of Zillow Home Value Index (ZHVI) for All Homes (SFR, Condo/Co-op), Smooth and Seasonally Adjusted (Zillow)

Updated on March 22, 2026.

According to data from Zillow.com, the smoothed and seasonally adjusted Zillow home value index (ZHVI) for All Homes (SFR, Condo/Co-op) in the 98850 Zip Code (Rock Island, Washington) in February 2026 was $436,214.987. The month over month percentage change (MoM) was 0.70%, and the year over year percentage change (YoY) was 2.63%.

The chart below shows the trend of the smoothed and seasonally adjusted ZHVI for the 98850 zip code (Rock Island, Washington). The table below shows the trend of the smoothed and seasonally adjusted ZHVI, and the MoM and YoY percentage changes for the 98850 zip code (Rock Island, Washington).

You can see similar information for other Washington zip codes, and for Washington.

Note: Zillow Home Value Index (ZHVI) is a measure of the typical home value and market changes across a given region and housing type. It reflects the typical value for homes in the 35th to 65th percentile range.

Data Source: Zillow.
Zip Code: 98850 (Rock Island, Washington) - Trend of Zillow Home Value Index (ZHVI), Smooth and Seasonally Adjusted ($)
Zip Code: 98850 (Rock Island, Washington) - Trend of Zillow Home Value Index (ZHVI), Smooth and Seasonally Adjusted
1 – 10 of 134
Month ZHVI ($) MoM Perc. Change (%) YoY Perc. Change (%)
Jan 2015 169598.38123368728 0.24 2.84
Feb 2015 170087.70080303462 0.29 2.93
Mar 2015 170941.81860784598 0.50 3.23
Apr 2015 172108.39201178713 0.68 3.76
May 2015 173377.87918907535 0.74 4.11
Jun 2015 174367.85469361054 0.57 4.53
Jul 2015 175482.77375580696 0.64 5.13
Aug 2015 176555.52643629015 0.61 5.90
Sep 2015 177707.51307562747 0.65 6.33
Oct 2015 179196.01735382582 0.84 6.84
Nov 2015 180547.9822569987 0.75 7.10
Dec 2015 182098.67657438884 0.86 7.62
Jan 2016 183533.96658369314 0.79 8.22
Feb 2016 184878.98628121903 0.73 8.70
Mar 2016 185583.49188596406 0.38 8.57
Apr 2016 186157.44449137303 0.31 8.16
May 2016 186794.16623948896 0.34 7.74
Jun 2016 187799.38128827047 0.54 7.70
Jul 2016 188456.00866885684 0.35 7.39
Aug 2016 189057.2762508579 0.32 7.08
Sep 2016 189596.1879906909 0.28 6.69
Oct 2016 190328.06875939146 0.39 6.21
Nov 2016 191373.47172104128 0.55 6.00
Dec 2016 192562.40992361621 0.62 5.75
Jan 2017 193786.523952274 0.64 5.59
Feb 2017 194736.1958318418 0.49 5.33
Mar 2017 195960.1525378958 0.63 5.59
Apr 2017 197318.21927068022 0.69 6.00
May 2017 198766.6267999988 0.73 6.41
Jun 2017 200374.5610028185 0.81 6.70
Jul 2017 202293.44141999996 0.96 7.34
Aug 2017 204187.7686075829 0.94 8.00
Sep 2017 206402.11994798563 1.08 8.86
Oct 2017 208248.2750868307 0.89 9.41
Nov 2017 210029.90639219902 0.86 9.75
Dec 2017 211277.20152845487 0.59 9.72
Jan 2018 213000.4993541888 0.82 9.91
Feb 2018 215011.66693971076 0.94 10.41
Mar 2018 217284.05154515387 1.06 10.88
Apr 2018 219361.413524228 0.96 11.17
May 2018 221315.8948129872 0.89 11.35
Jun 2018 222768.24066160992 0.66 11.18
Jul 2018 225034.33022247933 1.02 11.24
Aug 2018 227961.27101354036 1.30 11.64
Sep 2018 231137.79555268798 1.39 11.98
Oct 2018 233030.4239723227 0.82 11.90
Nov 2018 234109.85975925167 0.46 11.47
Dec 2018 234998.68195373597 0.38 11.23
Jan 2019 235959.95680603664 0.41 10.78
Feb 2019 236852.7731385807 0.38 10.16
Mar 2019 238444.68382028877 0.67 9.74
Apr 2019 240280.28820567543 0.77 9.54
May 2019 242347.15870424057 0.86 9.50
Jun 2019 244149.4930659963 0.74 9.60
Jul 2019 246185.17155848572 0.83 9.40
Aug 2019 248549.1281882727 0.96 9.03
Sep 2019 250700.70272991527 0.87 8.46
Oct 2019 253293.26841522005 1.03 8.70
Nov 2019 256264.3795130615 1.17 9.46
Dec 2019 259346.31947625973 1.20 10.36
Jan 2020 261876.15370849567 0.98 10.98
Feb 2020 264281.33937328466 0.92 11.58
Mar 2020 266979.8447259434 1.02 11.97
Apr 2020 271367.70597512036 1.64 12.94
May 2020 275848.3034003569 1.65 13.82
Jun 2020 280291.068796264 1.61 14.80
Jul 2020 283703.54756462545 1.22 15.24
Aug 2020 287151.0664661565 1.22 15.53
Sep 2020 291661.1796044767 1.57 16.34
Oct 2020 296384.8453093236 1.62 17.01
Nov 2020 302176.37912296597 1.95 17.92
Dec 2020 307979.26230253145 1.92 18.75
Jan 2021 313480.89659772255 1.79 19.71
Feb 2021 318743.08523457585 1.68 20.61
Mar 2021 323798.6957729808 1.59 21.28
Apr 2021 330717.1056398806 2.14 21.87
May 2021 338996.7274245317 2.50 22.89
Jun 2021 348237.9996953434 2.73 24.24
Jul 2021 354136.620123092 1.69 24.83
Aug 2021 355826.68431971414 0.48 23.92
Sep 2021 354653.99747038813 -0.33 21.60
Oct 2021 354386.61528601404 -0.07 19.57
Nov 2021 355287.3492980514 0.25 17.58
Dec 2021 356700.58172870154 0.40 15.82
Jan 2022 360485.1942855052 1.06 14.99
Feb 2022 366211.77678584465 1.59 14.89
Mar 2022 375617.9172165389 2.57 16.00
Apr 2022 384490.8669307791 2.36 16.26
May 2022 393023.4887957456 2.22 15.94
Jun 2022 397950.9325981832 1.25 14.28
Jul 2022 399972.3520700389 0.51 12.94
Aug 2022 399697.7959637386 -0.07 12.33
Sep 2022 398633.87655420555 -0.27 12.40
Oct 2022 397937.8839928524 -0.17 12.29
Nov 2022 396712.2582475157 -0.31 11.66
Dec 2022 394785.93381227297 -0.49 10.68
Jan 2023 391470.2945450467 -0.84 8.60
Feb 2023 389860.97794683505 -0.41 6.46
Mar 2023 389505.3556495786 -0.09 3.70
Apr 2023 390499.46833201376 0.26 1.56
May 2023 390610.12880684435 0.03 -0.61
Jun 2023 390711.34226609714 0.03 -1.82
Jul 2023 391698.4367460629 0.25 -2.07
Aug 2023 393904.52297262434 0.56 -1.45
Sep 2023 396574.4369017044 0.68 -0.52
Oct 2023 397920.77443926944 0.34 0.00
Nov 2023 398169.78139136103 0.06 0.37
Dec 2023 398015.58136287774 -0.04 0.82
Jan 2024 398453.9238579255 0.11 1.78
Feb 2024 399658.8312929335 0.30 2.51
Mar 2024 401396.0823539879 0.44 3.05
Apr 2024 403101.9741558341 0.43 3.23
May 2024 404081.3453570458 0.24 3.45
Jun 2024 404029.7331601491 -0.01 3.41
Jul 2024 404172.57956253254 0.04 3.19
Aug 2024 405716.77779283817 0.38 3.00
Sep 2024 408113.350836022 0.59 2.91
Oct 2024 411329.9221545695 0.79 3.37
Nov 2024 414715.39014492446 0.82 4.16
Dec 2024 418898.5711090336 1.01 5.25
Jan 2025 422673.47612055345 0.90 6.08
Feb 2025 425029.3348177586 0.56 6.35
Mar 2025 425640.33611270454 0.14 6.04
Apr 2025 424539.85982320615 -0.26 5.32
May 2025 422322.17540332844 -0.52 4.51
Jun 2025 419503.21034923237 -0.67 3.83
Jul 2025 417012.3927099041 -0.59 3.18
Aug 2025 415409.05605466786 -0.38 2.39
Sep 2025 415818.982842412 0.10 1.89
Oct 2025 418660.07884753816 0.68 1.78
Nov 2025 423414.77546698804 1.14 2.10
Dec 2025 428821.54946889565 1.28 2.37
Jan 2026 433178.2149876288 1.02 2.49
Feb 2026 436214.98709538096 0.70 2.63