Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/CA/COUNTY/LAKE

Lake County, CA ZIP codes

There are 15 ZIP codes in Lake County, CA, in 15 towns, from 95422 to 95493. The largest are 95422 (Clearlake), 95451 (Kelseyville) and 95453 (Lakeport). 1 more crosses into it from a neighbouring county: 95469.

The county seat is Lakeport.

ZIP codes
15
Partly in it
1 more
Towns
15
County seat
Lakeport
County FIPS
06033
Population
68,152
Median household income
$60,621
Land area
1,255 sq mi
Area codes
369, 707
Metro area
Clearlake

Lake County ZIP codes by town

Lakeport (county seat)
95453

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Lake County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Lake County.

Map of Lake County ZIP codes

954229542395424954269543595443954519545395457954589546195464954679548595493

The ZIP codes of Lake County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Lake County in numbers

About 68,152 people live in Lake County, in 26,940 households, the 40th most populous of California's 58 counties. The median household income is $60,621 a year, 39% below the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $324,300 (56% below the California median), and median gross rent is $1,368 a month. The median age is 44.1; 17.8% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 32 minutes.

Population68,152Lake68,152
Households26,940Lake26,940
Median age44.1Lake44.1California37.9US 38.9
Median household income$60,621Lake$60,621California$99,122US $80,734
Median home value$324,300Lake$324,300California$734,700US $332,700
Median gross rent$1,368Lake$1,368California$2,036US $1,413
Bachelor's degree or higher17.8%Lake17.8%California37.1%US 35.7%
Mean commute32.4 minLake32.4 minCalifornia28.7 minUS 26.4 min
Population density54 / sq miLake54 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Lake County

Largest towns in Lake County
TownZIP codesPopulation
Clearlake 1 16,659
Hidden Valley Lake 1 5,872
Lakeport 1 5,113
Kelseyville 1 4,011
Lucerne 1 3,435
Nice 1 2,569
Clearlake Oaks 1 2,198
Middletown 1 1,572
Upper Lake 1 1,374
Cobb 1 842
Lower Lake 1 635
Witter Springs 1 228
Glenhaven 1 81

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Lake County.

Not sure you are in Lake County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Lake County, with figures

ZIP codes in Lake County
ZIP City Type Population Median income Median home
95422 Clearlake , CA Standard 17,054 $42,241 $217,000
95423 Clearlake Oaks , CA Standard 3,513 $41,143 $293,600
95424 Clearlake Park , CA No street area — — —
95426 Cobb , CA Standard 1,257 $84,000 $311,900
95435 Finley , CA Standard 0 — —
95443 Glenhaven , CA Standard 81 — —
95451 Kelseyville , CA Standard 12,592 $62,568 $352,000
95453 Lakeport , CA Standard 11,741 $71,419 $403,300
95457 Lower Lake , CA Standard 3,122 $63,594 $488,800
95458 Lucerne , CA Standard 3,638 $57,674 $249,500
95461 Middletown , CA Standard 3,422 $78,667 $387,400
95464 Nice , CA Standard 2,484 $61,705 $155,100
95467 Hidden Valley Lake , CA Standard 5,778 $84,152 $393,100
95485 Upper Lake , CA Standard 3,242 $104,667 $370,100
95493 Witter Springs , CA Standard 228 $74,531 $625,000

Cite this page

zipcodes.pro. “Lake County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ca/county/lake

Underlying data is public domain or openly licensed — sources, vintages and licences.