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County ZIP codes · California · FIPS 06091

Sierra County, CA ZIP Codes

Sierra County, California has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Sierra County and 3 mainly in a neighboring county; 5 cross the county line.

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Sierra County?

89439 · Verdi: $101k95910 · Alleghany: –95922 · Camptonville: $37k95936 · Downieville: –95944 · Goodyears Bar: –95960 · North San Juan: $53k96105 · Chilcoot: $123k96118 · Loyalton: $54k96124 · Calpine: $206k96125 · Sierra City: $96k96126 · Sierraville: –961059611895960961259592296124959369612695910894399594489439 · Verdi: $101k95910 · Alleghany: –95922 · Camptonville: $37k95936 · Downieville: –95944 · Goodyears Bar: –95960 · North San Juan: $53k96105 · Chilcoot: $123k96118 · Loyalton: $54k96124 · Calpine: $206k96125 · Sierra City: $96k96126 · Sierraville: –961059611895960961259592296124959369612695910894399594489439 · Verdi: $101k95910 · Alleghany: –95922 · Camptonville: $37k95936 · Downieville: –95944 · Goodyears Bar: –95960 · North San Juan: $53k96105 · Chilcoot: $123k96118 · Loyalton: $54k96124 · Calpine: $206k96125 · Sierra City: $96k96126 · Sierraville: –9610596118959609612595922959369612695910
The residential ZIP codes of Sierra County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

All 11 residential ZIP codes in Sierra County

8 ZIP codes lie mainly in Sierra County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Sierra County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
96118 Loyalton 1,328 8 $54k $244k 83%
95960 North San Juan 540 13 $53k $460k 39%
96124 Calpine 387 7 $206k $468k 100%
96126 Sierraville 351 12 – – 100%
96125 Sierra City 263 3 $96k $378k 100%
95936 Downieville 144 3 – – 100%
95944 Goodyears Bar 122 13 – – 100%
95910 Alleghany 19 1 – – 100%

Partly in Sierra County

Residential ZIP codes mainly in another county that reach at least 1% into Sierra County, by their share here
In this county
96105 Chilcoot 799 3 $123k $447k 26%
89439 Verdi 2,532 156 $101k $763k 26%
95922 Camptonville 425 8 $37k $277k 18%

Download the 11 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Sierra County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Sierra County and in the neighboring counties
ZIPIn SierraElsewhere
8943926%Washoe County 74%
9611883%Plumas County 17%
9610526%Plumas County 60%; Lassen County 14%
9596039%Nevada County 37%; Yuba County 24%
9592218%Yuba County 82%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Sierra County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Sierra County's ZIP codes use 3 prefixes: 894, 959 and 961.

Three-digit prefixes of Sierra County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Sierra County's
PrefixSectional centerHereAll codes
894 Reno, NV (SCF 894) 1 50
959 Sacramento, CA (SCF 956) 5 77
961 Reno, NV (SCF 894) 5 53

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.