Williamson County, IL Trend of Active Listing Count of Houses (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the active listing count of houses in Williamson County, IL in February 2026 was 171. The month over month percentage change (MoM) was -0.0604%, and the year over year percentage change (YoY) was 0.0491%.

You can see similar for other Illinois counties, and for Illinois.

The chart below shows the trend of active listing count in Williamson County, IL. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Williamson County, IL Trend of Active Listing Count of Houses
Williamson County, IL Trend of Active Listing Count of Houses
Items per page:
1 – 10 of 116
Month Active Listing Count MoM Perc. Change (%) YoY Perc. Change (%)
Aug 2016 482
Sep 2016 471
Oct 2016 458
Nov 2016 467
Dec 2016 456
Jan 2017 444
Feb 2017 437
Mar 2017 402
Apr 2017 399
May 2017 416
Jun 2017 435
Jul 2017 464
Aug 2017 476 0.027 -0.0124
Sep 2017 480 0.0084 0.0202
Oct 2017 490 0.0208 0.0699
Nov 2017 498 0.0163 0.0664
Dec 2017 482 -0.0321 0.0582
Jan 2018 440 -0.0871 -0.009
Feb 2018 419 -0.0489 -0.0423
Mar 2018 417 -0.0036 0.0386
Apr 2018 422 0.012 0.0576
May 2018 430 0.0178 0.0325
Jun 2018 444 0.0338 0.0207
Jul 2018 439 -0.0113 -0.0529
Aug 2018 448 0.0194 -0.0599
Sep 2018 436 -0.0257 -0.0917
Oct 2018 434 -0.0046 -0.1143
Nov 2018 437 0.0069 -0.1225
Dec 2018 419 -0.0423 -0.1317
Jan 2019 403 -0.037 -0.0841
Feb 2019 380 -0.0583 -0.0932
Mar 2019 389 0.025 -0.0671
Apr 2019 382 -0.018 -0.0948
May 2019 374 -0.0209 -0.1292
Jun 2019 384 0.0267 -0.1351
Jul 2019 395 0.0286 -0.1002
Aug 2019 427 0.0797 -0.0469
Sep 2019 423 -0.0082 -0.0298
Oct 2019 414 -0.0213 -0.0461
Nov 2019 409 -0.0121 -0.0641
Dec 2019 394 -0.0367 -0.0585
Jan 2020 373 -0.0546 -0.0757
Feb 2020 359 -0.0376 -0.0553
Mar 2020 362 0.0098 -0.0694
Apr 2020 355 -0.0207 -0.072
May 2020 345 -0.0268 -0.0775
Jun 2020 324 -0.0609 -0.1563
Jul 2020 295 -0.0895 -0.2532
Aug 2020 265 -0.1034 -0.3798
Sep 2020 259 -0.0208 -0.3877
Oct 2020 251 -0.0309 -0.3937
Nov 2020 239 -0.0478 -0.4156
Dec 2020 223 -0.069 -0.4353
Jan 2021 213 -0.0427 -0.4282
Feb 2021 191 -0.1033 -0.4672
Mar 2021 159 -0.1702 -0.5622
Apr 2021 144 -0.0946 -0.5952
May 2021 132 -0.0801 -0.6174
Jun 2021 134 0.0152 -0.5864
Jul 2021 142 0.0597 -0.5186
Aug 2021 149 0.0493 -0.4367
Sep 2021 137 -0.0839 -0.473
Oct 2021 152 0.1099 -0.3964
Nov 2021 140 -0.0759 -0.4142
Dec 2021 130 -0.0714 -0.4157
Jan 2022 139 0.0654 -0.3498
Feb 2022 130 -0.0614 -0.3194
Mar 2022 116 -0.1077 -0.2681
Apr 2022 110 -0.0517 -0.2334
May 2022 116 0.0545 -0.1212
Jun 2022 115 -0.0129 -0.1455
Jul 2022 125 0.0917 -0.1197
Aug 2022 146 0.168 -0.0201
Sep 2022 147 0.0068 0.0769
Oct 2022 141 -0.0408 -0.0693
Nov 2022 158 0.1206 0.1286
Dec 2022 163 0.0316 0.2538
Jan 2023 153 -0.0613 0.1047
Feb 2023 135 -0.1209 0.0346
Mar 2023 104 -0.2268 -0.1034
Apr 2023 93 -0.1106 -0.1591
May 2023 90 -0.027 -0.2241
Jun 2023 102 0.1278 -0.1135
Jul 2023 102 0.0 -0.188
Aug 2023 124 0.2217 -0.1507
Sep 2023 125 0.0081 -0.1497
Oct 2023 131 0.048 -0.0709
Nov 2023 130 -0.0076 -0.1772
Dec 2023 134 0.0269 -0.181
Jan 2024 133 -0.0037 -0.1307
Feb 2024 132 -0.0075 -0.0186
Mar 2024 139 0.0492 0.3317
Apr 2024 134 -0.0325 0.4486
May 2024 134 0.0 0.4889
Jun 2024 120 -0.1082 0.1773
Jul 2024 136 0.1381 0.3399
Aug 2024 152 0.114 0.2218
Sep 2024 160 0.0561 0.28
Oct 2024 158 -0.0156 0.2023
Nov 2024 171 0.0825 0.3115
Dec 2024 191 0.1202 0.4307
Jan 2025 185 -0.034 0.3872
Feb 2025 168 -0.0894 0.2727
Mar 2025 163 -0.0298 0.1769
Apr 2025 167 0.0245 0.2463
May 2025 175 0.0449 0.3022
Jun 2025 153 -0.1232 0.2803
Jul 2025 158 0.0327 0.1618
Aug 2025 173 0.0918 0.1386
Sep 2025 174 0.0087 0.0875
Oct 2025 190 0.0891 0.2032
Nov 2025 192 0.0106 0.1232
Dec 2025 207 0.0809 0.0838
Jan 2026 196 -0.0556 0.0596
Feb 2026 182 -0.0691 0.0833
Mar 2026 171 -0.0604 0.0491