Lake Property Tax Rate by ZIP Code
The Lake County property tax rate isn't one number — it's the 1% Proposition 13 base plus each area's voter-approved debt, so it varies by ZIP. Below is the typical ad-valorem rate for 16 Lake County ZIP codes, from the Auditor-Controller's rate schedule, with a typical assessed value and bill for each. Enter your ZIP and home value below to estimate your own bill, or search the table.
Quick answer: across 16 Lake County ZIP codes the typical property tax rate runs about 1.077%–1.117% of assessed value (median 1.1128%). It's highest in ZIP 95453 (Lakeport) at 1.1178% and lowest in 95451 (Kelseyville) at 1.077%.
Ad-valorem only (excludes Mello-Roos and parcel taxes); a typical rate for the ZIP, not your parcel's exact Tax Rate Area. Typical value is the median assessed value across all property types in the ZIP (no single-family/condo split — Lake's parcel data omits the Assessor use code).
Enter your ZIP code to see its typical property tax rate and estimate your bill.
Highest and lowest property tax ZIP codes in Lake County
Ranked by typical ad-valorem rate (1% Proposition 13 base plus each area's voter-approved debt). A higher rate reflects more voter-approved school and municipal bonds in that area — not a higher assessment.
| Highest rates · ZIP | Area | Rate |
|---|---|---|
| 95453 | Lakeport | 1.1178% |
| 95422 | Clearlake | 1.117% |
| 95423 | Clearlake Oaks | 1.117% |
| 95424 | Clearlake Park | 1.117% |
| 95457 | Lower Lake | 1.117% |
| Lowest rates · ZIP | Area | Rate |
|---|---|---|
| 95451 | Kelseyville | 1.077% |
| 95435 | Finley | 1.077% |
| 95458 | Lucerne | 1.0923% |
| 95443 | Glenhaven | 1.0923% |
| 95493 | Witter Springs | 1.0961% |
Showing 16 of 16 ZIP codes.
| ZIP | Area | Typical rate | Typical home value | Typical annual tax |
|---|---|---|---|---|
| 95422 | Clearlake | 1.117% | $76,616 | $856 |
| 95423 | Clearlake Oaks | 1.117% | $104,867 | $1,171 |
| 95424 | Clearlake Park | 1.117% | $85,951 | $960 |
| 95426 | Cobb | 1.077–1.1128% | $102,482 | $1,140 |
| 95435 | Finley | 1.077–1.1178% | $216,485 | $2,332 |
| 95443 | Glenhaven | 1.0923% | $146,943 | $1,605 |
| 95451 | Kelseyville | 1.077% | $201,440 | $2,170 |
| 95453 | Lakeport | 1.1178% | $238,771 | $2,669 |
| 95457 | Lower Lake | 1.117% | $160,577 | $1,794 |
| 95458 | Lucerne | 1.0923% | $114,942 | $1,256 |
| 95461 | Middletown | 1.077–1.1212% | $152,461 | $1,697 |
| 95464 | Nice | 1.0961% | $71,400 | $783 |
| 95467 | Hidden Valley Lake | 1.1128% | $288,527 | $3,211 |
| 95469 | Lake Pillsbury | 1.0961% | $87,427 | $958 |
| 95485 | Upper Lake | 1.0961% | $156,374 | $1,714 |
| 95493 | Witter Springs | 1.0961% | $200,160 | $2,194 |
How precise is this? A ZIP can span several Tax Rate Areas, so the figure above is typical for the ZIP, not your parcel's exact rate. To see the exact rate by Tax Rate Area — or look up your parcel by APN — use the Lake rate explorer →
Frequently Asked Questions
What is the property tax rate in Lake County by ZIP code?
Across Lake County the ad-valorem property tax rate for most ZIPs runs about 1.077% to 1.117% of assessed value, with a median near 1.1128% — the 1% Proposition 13 base plus each area's voter-approved debt. Lake's total rates are relatively low; it's highest in ZIP 95453 (Lakeport) at 1.1178% and lowest in 95451 (Kelseyville) at 1.077%.
Why does the property tax rate differ by ZIP code?
The 1% Proposition 13 base is the same everywhere, but each Tax Rate Area adds its own voter-approved bond debt — school districts, the Sierra Joint Community College District, and city, water, or special-district bonds. ZIP codes in areas with more approved bonds have higher total rates. A single ZIP can span more than one Tax Rate Area, so the figure shown is a typical rate for that ZIP, not your parcel's exact rate.
Do these rates include Mello-Roos (CFD) charges?
No. These are ad-valorem rates only (the 1% base plus voter-approved bond debt). Some developments carry Community Facilities District / Mello-Roos special taxes, but those special taxes and fixed direct assessments are billed separately — often several hundred to a few thousand dollars a year on top of the rate shown. If a bill looks higher than the rate here implies, the difference is usually CFD/direct charges or fixed assessments.
Is the typical value single-family only?
No — for Lake it's the median assessed value across all property types in the ZIP. Lake County's free parcel data doesn't publish the Assessor use code, so we can't separate single-family homes from condos or income properties the way we do in other counties. The figure is a typical parcel (land + improvements, gross of exemptions), useful as a rough anchor rather than a single-family-specific value.
Learn More
Educational estimates only, not official bills. Rates are ad-valorem only (excluding Mello-Roos, parcel taxes, and fixed direct assessments) and are typical for the ZIP, not your parcel's exact Tax Rate Area. Typical value is the median assessed value (land + improvements, gross of exemptions) across all property types in the ZIP. Source: Lake County Auditor-Controller rate schedule and the Lake County GIS parcel layer.