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Mad River, CA
Census-designated place in Trinity County, California. ZIP codes: 95552.
Population
272
Land area
35.2sq mi
People per sq mi
8
ZIP codes
1
Mad River and its ZIP codes
Mad River at a glance
- Mad River is 97% less dense than California as a whole.
Local data for Mad River, CA
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Trinity County. PPP loans are for Mad River.
Unemployment rate
5.4%
Sep 2026, 0.0 pts in a year
Average annual pay
$58,963
2,894 jobs, 2025
Income per person
$42,191
BEA, 2024
Federal spending
$97.4M
FY 2026, $6,046 per person
Environment and hazard risk
Mad River, CA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: landslide
Storm events since 1996
200
Countywide, mostly winter weather
Flood insurance policies
55
0.7% of homes, county
July high / Jan low
73° / 38°F
52.3 inches of rain a year
Health statistics
Share of adults in Mad River, CA, CDC PLACES estimates
Obesity
36.2%
U.S. 33.3% +2.9 pts
Diabetes
16.7%
U.S. 12.1% +4.6 pts
Smoking
21.5%
U.S. 12.8% +8.7 pts
Uninsured (18-64)
8.5%
U.S. 11.1% -2.6 pts
ZIP codes in Mad River
1 in or overlapping Mad River. Population shown
Cities near Mad River
| Name | Distance | Land area (sq mi) |
|---|---|---|
| RuthCensus-designated place | 12 mi | 38.9 |
| HyampomCensus-designated place | 13 mi | 20.3 |
| Post MountainCensus-designated place | 14 mi | 12.4 |
| AlderpointCensus-designated place | 20 mi | 2.4 |
| HayforkCensus-designated place | 21 mi | 72.1 |
| PhillipsvilleCensus-designated place | 22 mi | 0.7 |
| MirandaCensus-designated place | 22 mi | 1.5 |
| Myers FlatCensus-designated place | 23 mi | 0.4 |
| WeottCensus-designated place | 24 mi | 0.8 |
| RedcrestCensus-designated place | 24 mi | 0.6 |
| Burnt RanchCensus-designated place | 26 mi | 13.4 |
| RedwayCensus-designated place | 28 mi | 1.3 |
| GarbervilleCensus-designated place | 28 mi | 2.7 |
| BenbowCensus-designated place | 29 mi | 4.9 |
Frequently asked questions
- What county is Mad River, CA in?
- Mad River is in Trinity County, California.
- What ZIP codes are in Mad River, CA?
- ZIP codes in or overlapping Mad River include 95552.
- What is the population of Mad River, CA?
- About 272 people live in Mad River, based on American Community Survey 5-year estimates.
- What cities are near Mad River?
- Nearby places include Ruth (12 mi), Hyampom (13 mi), Post Mountain (14 mi), Alderpoint (20 mi), Hayfork (21 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023