County market report · FIPS 30009
Carbon County, MT
Billings, MT · Population 10,921 (Census V2020 est.)
Typical value
$504,796
Sep 2026
1M
-0.2%
3M
+0.2%
12M
+3.7%
5Y
+34.8%
10Y
+118.7%
From peak
-0.2%
Peak $506,029 · Aug 2026
Rank US / state
1211 / 29
by 12M change
Zillow Home Value Index
Source: Zillow Home Value Index (ZHVI), all homes, smoothed & seasonally adjusted · data through Sep 2026.
Inflection signal
Price-OnlyE · Potential Peak
r3+0.19%p3+0.61%Acceleration-0.42ppMonths persisting1Evidence (Price-Only)40/100
Inventory, sales & days on market — Phase 2
Supply and demand confirmation is not yet available.
Yearly values (December)
| Year | ZHVI (Dec) | YoY change |
|---|---|---|
| 2025 | $494,046 | +4.1% |
| 2024 | $474,392 | +4.4% |
| 2023 | $454,341 | +5.5% |
| 2022 | $430,515 | +10.7% |
| 2021 | $388,863 | +26.7% |
| 2020 | $306,879 | +10.5% |
| 2019 | $277,610 | +4.5% |
| 2018 | $265,643 | +5.0% |
| 2017 | $253,006 | +8.2% |
| 2016 | $233,734 | — |