95451 ZIP Code, Kelseyville, CA

95451 is a ZIP code in Kelseyville, California in Lake County. It covers 93 square miles of land. The closest ZIP codes are 95426, 95435 and 95422. 12,592 people live here in 5,074 households. With about 136 people per square mile it is lightly settled, and most homes are owner-occupied (73%). Median household income is $62,568, well below the California median of $99,122; the median age is 46.8, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents12,592
Households5,074
Median household income$62,568
Income per person$37,070
Median age46.8
Homeowners72.9%
Median home value$352,000
Median rent$1,352
Bachelor's degree or higher19.3%
Average commute (minutes)34.3
Households with kids under 1824.4%
Moved in the past year8.8%
Below the poverty line14.0%
Broadband internet87.8%
Speak a non-English language at home27.6%

Household income

% of householdsValue
<$10K2.9%
$10–15K2.3%
$15–25K5.8%
$25–35K8.8%
$35–50K14.8%
$50–75K23.3%
$75–100K9.7%
$100–150K15.5%
$150–200K10.1%
$200K+6.7%

Age

% of all residentsValue
<1010.5%
10–1911.8%
20–245.5%
25–3412.3%
35–447.8%
45–5410.7%
55–6415.5%
65–7414.1%
75+11.8%

Tenure

% of housing unitsValue
Owned, with mortgage32.1%
Owned outright25.9%
Rented21.4%
Vacant20.6%

Type of building

% of housing unitsValue
Detached house75.4%
Townhome2.5%
2–4 units1.1%
5–19 units2.9%
20+ units0.7%
Mobile / other17.3%

Businesses in 95451

167 business establishments with 1,039 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

95451 has 10 USPS carrier routes with 5,053 residential and 172 business mailboxes. Open the EDDM route map.

Carrier routes in 95451

95451 has 10 USPS carrier routes (10 rural (R)) with 5,053 residential and 172 business mailboxes. Routes range from 333 homes (R010) to 612 homes (R003); the median route has 517 homes. The Census counted 5,074 households in 95451 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4994
500–7496
750–9990
1,000–1,4990
1,500+0

Best routes in 95451 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R006 — USPS business mailboxes 74, 578 homes
  2. Route R009 — USPS business mailboxes 34, 439 homes
  3. Route R001 — USPS business mailboxes 25, 560 homes
  4. Route R007 — USPS business mailboxes 12, 559 homes
  5. Route R004 — USPS business mailboxes 8, 502 homes

Select these 5 routes on the route map

Every carrier route in 95451

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R001Rural56025$47,642———
R002Rural4625$84,843———
R003Rural6122$38,754———
R004Rural5028$104,054———
R005Rural5316$68,676———
R006Rural57874$51,426———
R007Rural55912$67,494———
R008Rural4771$69,112———
R009Rural43934$54,115———
R010Rural3335$51,426———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 95451 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 95451

Where it ranks

Mail every home in 95451

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 95451, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 95451 in?
95451 is a Kelseyville, CA mailing address. By land area, 6% lies inside Clearlake Riviera, 3% lies inside Kelseyville and 1% lies inside Soda Bay; the rest is outside any Census-defined city or community.
What county is 95451 in?
95451 is in Lake County.
What is the population of 95451?
About 12,592 people (±1,125), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 11,747.
What is the median household income in 95451?
$62,568 (±$7,775), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 95451?
10 USPS carrier routes with 5,053 residential and 172 business mailboxes (5,223 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 95451?
The closest, measured center to center: 95426 (6.8 mi, Cobb), 95435 (7.2 mi), 95422 (9 mi, Clearlake), 95443 (9.2 mi), 95453 (11.8 mi, North Lakeport) and 95457 (12.9 mi, Lower Lake).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.