City in Cassia County, Idaho · 0.3 sq mi · 1,369 people per sq mi
About 380 people live in Declo. The typical household earns $46,782, and the median resident is 38.1 years old.
2026 projection
From 341 in 2020
Poverty rate 14.68%
Men 43.7 · Women 17.9
2010–2026
379
2026 projection
11.1% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
379
2026 projection
11.1% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 379 | +7 | 1.88% |
|---|---|---|---|
| 2025 | 372 | +3 | 0.81% |
| 2024 | 369 | +5 | 1.37% |
| 2023 | 364 | +7 | 1.96% |
| 2022 | 357 | +8 | 2.29% |
| 2021 | 349 | +8 | 2.35% |
| 2020 | 341 | -25 | 6.83% |
| 2019 | 366 | +6 | 1.67% |
| 2018 | 360 | +1 | 0.28% |
| 2017 | 359 | +3 | 0.84% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 5 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
43% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 43% | 37% | 48% |
| Never married | 29% | 23% | 34% |
| Divorced | 27% | 38% | 17% |
| Widowed | 2% | 2% | 2% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau