95573 ZIP Code, Willow Creek, CA

95573 is a ZIP code in Willow Creek, California in Humboldt County. It covers 120 square miles of land. The closest ZIP codes are 95563, 95525 and 95550. 1,089 people live here in 618 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (62% own). Median household income is $47,258, well below the California median of $99,122; the median age is 60.7, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents1,089
Households618
Median household income$47,258
Income per person$30,923
Median age60.7
Homeowners62.1%
Median home value$388,100
Median rentnot published
Bachelor's degree or higher32.6%
Average commute (minutes)10
Households with kids under 1810.8%
Moved in the past year12.8%
Below the poverty line15.6%
Broadband internet89.0%
Speak a non-English language at home0.0%

Household income

% of householdsValue
<$10K0.0%
$10–15K3.7%
$15–25K10.2%
$25–35K9.2%
$35–50K27.3%
$50–75K19.4%
$75–100K12.6%
$100–150K17.5%
$150–200K0.0%
$200K+0.0%

Age

% of all residentsValue
<100.0%
10–197.6%
20–240.0%
25–3416.9%
35–442.1%
45–545.9%
55–6430.7%
65–7419.7%
75+17.1%

Tenure

% of housing unitsValue
Owned, with mortgage19.4%
Owned outright17.8%
Rented22.7%
Vacant40.1%

Type of building

% of housing unitsValue
Detached house76.0%
Townhome0.0%
2–4 units2.8%
5–19 units10.5%
20+ units0.0%
Mobile / other10.7%

Businesses in 95573

41 business establishments with 255 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

95573 has 1 USPS carrier routes with 2 residential and 0 business mailboxes. Open the EDDM route map.

Carrier routes in 95573

95573 has 1 USPS carrier routes (1 highway contract (H)) with 2 residential and 0 business mailboxes. Routes range from 2 homes (H067) to 2 homes (H067); the median route has 2 homes. The Census counted 618 households in 95573 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4990
500–7490
750–9990
1,000–1,4990
1,500+0

Every carrier route in 95573

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
H067Highway contract20$87,780———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 95573 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 95573

Where it ranks

Mail every home in 95573

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) 95573, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 95573 in?
95573 is a Willow Creek, CA mailing address. By land area, 25% lies inside Willow Creek; the rest is outside any Census-defined city or community.
What county is 95573 in?
95573 is in Humboldt County.
What is the population of 95573?
About 1,089 people (±337), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,750.
What is the median household income in 95573?
$47,258 (±$12,862), 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 95573?
1 USPS carrier routes with 2 residential and 0 business mailboxes (2 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 95573?
The closest, measured center to center: 95563 (5.6 mi, Salyer), 95525 (8.6 mi, Blue Lake), 95550 (12.7 mi), 95527 (13.2 mi, Burnt Ranch), 95546 (19 mi, Hoopa) and 95519 (20.3 mi, McKinleyville).

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