City in Humboldt County, California · 2.5 sq mi · 1,279 people per sq mi
3,178 people live in Rio Dell. The typical household earns $42,753, and the median resident is 35.2 years old.
2026 projection
From 3,379 in 2020
Poverty rate 17.59%
Men 32.1 · Women 40.2
1890–2026
3,178
2026 projection
5.9% 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.
1890–2026
3,178
2026 projection
5.9% 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 | 3,178 | -33 | 1.03% |
|---|---|---|---|
| 2025 | 3,211 | -41 | 1.26% |
| 2024 | 3,252 | -53 | 1.60% |
| 2023 | 3,305 | -56 | 1.67% |
| 2022 | 3,361 | -40 | 1.18% |
| 2021 | 3,401 | +22 | 0.65% |
| 2020 | 3,379 | +70 | 2.12% |
| 2019 | 3,309 | -27 | 0.81% |
| 2018 | 3,336 | -17 | 0.51% |
| 2017 | 3,353 | 0 | 0.00% |
Showing 10 of 24 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.
Rio Dell has a population change lower than Humboldt County, California, 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 33 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 6 residents
48% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 48% | 48% | 48% |
| Never married | 26% | 30% | 22% |
| Divorced | 18% | 12% | 24% |
| Widowed | 5% | 5% | 6% |
| Separated | 3% | 5% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources