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Trinity County, California ZIP codes

13 ZIP codes are in Trinity County, plus 1 that cross in from neighboring counties.

ZIP codes
13
Population in these ZIPs
15,653
Avg. median income
$55,900population-weighted
Cities & towns
13
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ZIP codes in Trinity County

ZIP codes in Trinity County
ZIP codeCityPopulationMedian incomeTypical home value
95527Burnt Ranch622$76,667$249,500
95552Mad River586$77,796$211,100
95563Salyer577$62,893$250,500
95595Zenia133$28,704$553,600
96010Big Bar212$28,958$267,100
96024Douglas City1,082$43,750$286,400
96041Hayfork2,889—$146,500
96046Hyampom489——
96048Junction City1,297$50,521$225,000
96052Lewiston2,366$37,222$267,400
96076Platina148$29,156—
96091Trinity Center932$61,058$253,600
96093Weaverville4,320$65,741$286,300

ZIP codes partly in Trinity County

These ZIP codes are mostly in a neighboring county but cover part of Trinity County.

ZIP codes partly in Trinity County
ZIP codeCityCountyPopulationMedian incomeTypical home value
95526BridgevilleHumboldt County745$39,583$213,700

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities and towns in Trinity County

Nearby counties

Frequently asked questions

How many ZIP codes are in Trinity County, California?

13 ZIP codes are mainly in Trinity County, and 1 more ZIP codes from neighboring areas reach partly into it.

What cities are in Trinity County?

ZIP codes in Trinity County use the city names Big Bar, Burnt Ranch, Douglas City, Hayfork, Hyampom, Junction City, Lewiston, Mad River, Platina, Salyer, Trinity Center and Weaverville and others.