| City: | Auburn, California |
| City Alias: | Bowman |
| County: | Placer County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 11:16:26 PM |
| Population: | 49 [See All] |
| Area Code: | 530 |
| Classification: | PO Box |
| Coordinates: | 38.9115, -121.0810 |
| Land Area: | 0.05 sq mi |
| Quick Link: |
ZIP Code 95604 serves downtown Auburn in Placer County, California, functioning primarily as a commercial mail hub rather than a residential community. With just 49 residents living in 7 occupied homes, this ZIP serves the historic business district along Nevada Street, Harrison Avenue, and Lincoln Way. The post office maintains 1,237 PO Boxes while the immediate area houses only 7 households, creating an adoption rate of 177 boxes per household.
This extreme ratio makes sense when you consider the ZIP's role. Auburn businesses dominate the landscape with 21 establishments employing 112 people and 752 business delivery points. The post office serves as the regional mail hub for Auburn's commercial core, providing PO Box services to businesses, professionals, and residents from the broader Auburn area who prefer centralized mail pickup.
Of the 68 total housing units in this ZIP, 56 (82%) are classified as seasonal or vacant. Many of these are likely commercial properties, historic buildings converted to mixed use, or addresses tied to the business district rather than permanent residences. The 7 occupied units house 49 people with a median age of 52.5 years. All 24 adults age 25 and over hold bachelor's degrees or higher (100% educational attainment), and all residents were born in the United States.
The ZIP exists as a point location with no defined area, enclosed within ZIP 95603, which covers the larger Auburn residential community. Auburn does have city carrier delivery (indicated by the 216 city carrier route records), but the PO Box classification and massive box inventory show this ZIP's primary function: it's the town's central post office. Nevada Street dominates with 160 ZIP+4 records, followed by Harrison Avenue (34 records) and Lincoln Way (22 records). All three streets include multi-unit addressing, reflecting the commercial character.
Auburn also accepts mail addressed to Bowman, a nearby community served through this postal facility. This is a PO Box classified ZIP, but it isn't a PO Box Only Zone. Street delivery is available in the broader Auburn area via the adjacent ZIP code.
All three streets feature multi-unit addressing (UNIT designators), indicating commercial buildings, professional offices, or mixed-use structures in Auburn's historic downtown.
ZIP Code 95604 has 49 residents and 7 households (average 7.00 persons per household). The median age is 52.5 years, significantly older than the state (37.5) and significantly older than the nation (38.8). The gender split is 36.7% male and 63.3% female, which is much lower than the state male share (49.4%), making this a female-majority area. Largest groups are White (81.6%, much higher than the state average of 41.2% and well above the national average of 61.6%) and Hispanic or Latino (10.2%); Hispanic or Latino residents make up 10.2%, which is much lower than the state average (39.4%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 49Source: Census DHC |
| 2024 ACS Population Estimate: | 24Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 980.0 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 7Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 7.00Source: Census DHC |
| Average Family Size: | 5.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 44 | 44 | 64 | 104 | 106 | 87 | 85 | 62 | 35 | 34 | 24 |
| Decennial Census | 75 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 49 | -- | -- | -- |
Median Age: 52.5
Male Median Age: 58.5
Female Median Age: 43.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 2 | 4 | 0 | 0 | 2 |
| Female | 2 | 0 | 1 | 1 | 0 | 0 | 8 | 1 | 3 | 0 | 5 | 0 | 0 | 2 | 1 | 1 | 5 | 1 |
| Total | 2 | 3 | 2 | 2 | 0 | 1 | 8 | 1 | 3 | 0 | 5 | 4 | 0 | 4 | 5 | 1 | 5 | 3 |
| White: | 40 | 86.96% |
| Black: | 0 | 0% |
| Hispanic:* | 5 | 10.87% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 1 | 2.17% |
| Total: | 46 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 18 | 36.73% | 58.5 years |
| Females: | 31 | 63.27% | 43.5 years |
| Total: | 49 | 100% | 52.5 years |
| Native, born in the United States: | 24 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 24 | 100% |
| Total Native Population: | 24 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2023, the Median household income is $0, which is far less than the state median ($96,334), and below its 2019 pre-pandemic level by $78,068. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $0 and female is $0, which is well under the state female median ($61,569), with a current gap of $0 that has stayed about the same from 2011 to 2023. The labor-force participation rate is 100.0%, which is far greater than the national rate (63.5%). The unemployment rate is 0.0%, which is markedly below the state rate (6.4%). The largest occupation group is Sales (50.0%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $0 | $0 | $0 | $134,091 | $133,958 | $138,654 | $75,729 | $78,068 | $79,773 | $0 | $0 | $0 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $141,354 | $143,750 | $76,250 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 24 | 100.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 0 | 0.00% |
| Total: | 24 | 100% |
| Management, business, science, and arts: | 0 | 0.00% |
| Service: | 0 | 0.00% |
| Sales and Office: | 12 | 50.00% |
| Natural resources, construction, and maintenance: | 0 | 0.00% |
| Production, transportation, and material moving: | 12 | 50.00% |
| Total Civilian Employed Population: | 24 | 100% |
In 2023, the median home value is $0, which is considerably lower than the state median ($695,400), and below its 2019 pre-pandemic level by $674,100. The median gross rent is $0, which is far less than the state median ($1,956), and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $0 | $0 | $0 | $0 | $700,000 | $667,900 | $666,700 | $0 | $674,100 | $0 | $0 | $0 | $0 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 0 | 0.00% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 12 | 100.00% |
| No Rent: | 0 | 0.00% |
| Total: | 12 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 0 | 0.00% |
| Owner Occupied (free and clear, no mortgage): | 0 | 0.00% |
| Renter Occupied: | 12 | 100.00% |
| Total Occupied Housing Units: | 12 | 100% |
| Occupied Housing Units: | 12 | 13.33% |
| Vacant Housing Units (not graphed): | 78 | 86.67% |
| Total Housing Units: | 90 | 100% |
| Single-Family Units: | 69 | 76.67% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 21 | 23.33% |
| Total Housing Units: | 90 | 100% |
In 2023, 100.00% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.00%). High school or higher is 100.00%, which is on par with the state rate (84.60%). The uninsured rate is 0.00%, which is comparable to the national rate (8.60%). Insufficient data for poverty. Insufficient data for school enrollment.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 0 | 0.00% |
| Some college, no degree: | 0 | 0.00% |
| Associate's degree: | 0 | 0.00% |
| Bachelor's degree: | 24 | 100.00% |
| Graduate or professional degree: | 0 | 0.00% |
| Total: | 24 | 100% |
| High school or higher: | 24 | 100.00% |
| Bachelor's degree or higher: | 24 | 100.00% |
| Private Insurance: | 24 | 100.00% |
| Public Insurance: | 0 | 0.00% |
| No Insurance: | 0 | 0.00% |
| Total: | 24 | 100% |
| Has Health Insurance: | 24 | 100.00% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0% |
| Kindergarten: | 0 | 0% |
| Elementary school (grades 1-8): | 0 | 0% |
| High school (grades 9-12): | 0 | 0% |
| College or graduate school: | 0 | 0% |
| Total: | 0 | 100% |
| Early Childhood: | 0 | 0% |
| K-12 (Primary & Secondary School): | 0 | 0% |
ZIP Code 95604 supports both business and residential activity. According to the Business Census (2024), there are 17 business establishments, employing about 106 people with an annual payroll of $5,900,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 7,843Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 17Source: CBP |
| 1st Quarter Payroll: | $1,368,000Source: CBP |
| Annual Payroll: | $5,900,000Source: CBP |
| # of Employees: | 106Source: CBP |
ZIP Code 95604 is located in Placer County, California, within the Sacramento-Roseville-Folsom, CA Metropolitan Statistical Area (CBSA 40900) and California's 3rd Congressional District. This Metro area has a population of 2,406,563 people, about 0.00% of whom live in ZIP Code 95604. It covers 0.05 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Sacramento-Roseville-Folsom, CASource: Census |
| CBSA Number: | 40900Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,406,563Source: Census |
| MSA: | Sacramento-Yolo, CA CMSASource: Census |
| Land Area: | 0.05 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 03Source: USPS |
| Congressional Land Area: | 6183.59 sq miSource: Census |
| PMSA: | Sacramento, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0603204Source: Census |
| Place Name: | Auburn city; CaliforniaSource: Census |
We could not locate which school district 95604 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.