City in Rosebud County, Montana · 1.2 sq mi · 1,429 people per sq mi
1,645 people live in Forsyth. The typical household earns $39,744, and the median resident is 38.6 years old.
2026 projection
From 1,647 in 2020
Poverty rate 14.06%
Men 38.7 · Women 37
2010–2026
1,645
2026 projection
0.1% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
1,645
2026 projection
0.1% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 1,645 | -7 | 0.42% |
|---|---|---|---|
| 2025 | 1,652 | +5 | 0.30% |
| 2024 | 1,647 | +19 | 1.17% |
| 2023 | 1,628 | 0 | 0.00% |
| 2022 | 1,628 | +4 | 0.25% |
| 2021 | 1,624 | -23 | 1.40% |
| 2020 | 1,647 | -35 | 2.08% |
| 2019 | 1,682 | -29 | 1.69% |
| 2018 | 1,711 | -45 | 2.56% |
| 2017 | 1,756 | -17 | 0.96% |
Showing 10 of 17 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Forsyth has a population change lower than Rosebud County, Montana, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 17 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 7 residents
52% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 52% | 56% | 50% |
| Never married | 29% | 31% | 28% |
| Divorced | 8% | 10% | 6% |
| Widowed | 10% | 2% | 17% |
| Separated | <1% | 1% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources